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Senior Design Report for ECE 477 – Spring 2003

1. 1 Displaying different possible moves for a given game piece 2 Displaying the best possible move for a given game piece 3 Displaying player turn and side move information 4 Displaying the number of turns remaining for a player For this purpose we created a plastic 9 by 6 game board with 40 locations The game would be played with 12 pieces 6 a side The help features would be incorporated using a LCD display sound chip and a motor The LCD was used to display game board updated with the current state at all times Player pieces were represented on the LCD as 1 or 2 respectively for player one and player two A diamond denoted a blank spot Places where the player could move and the best move were represented by X and B respectively Player turn and side move information was show using left and right indicators And the number of turns left was represented as a number on the bottom left of the LCD The sound chip incorporated different messages that also helped a player and acted as reminders 9 messages were recorded and would be played back depending on player turn availability of side moves and incase of a player win or error condition The motor added the A8 Senior Design Report ECE 477 Spring 2003 b c d e ability for our game board to tilt left or right depending on player turn A microcontroller would handle and integrate the working of all these components together Description of how
2. Quinn Kirsch Embedded Software May 2003 Jeremy Brodt Power Systems May 2003 Daniel Lenz Circuit Design May 2003 Jeffrey Wigh Embedded Software May 2003 Project Description Provide a brief one or two page technical description of the design project as outlined below a Summary of the project including customer purpose specifications and a summary of the approach The FemBot5 is a voice controlled tank that allows the user to be in command of the direction and speed of the vehicle The user is also in control of the tank s turret movement The vehicle is controlled by a separate device that takes voice commands and transmits them via an FM broadcast to an FM receiver on the tank A voice recognition chip interprets the designated voice commands and issues commands to the microcontroller which then interfaces to all the motors of the tank The microcontroller is also required to monitor a sonar sensor on the front of the vehicle to determine if an object is in the forward path of the tank b Description of how the project built upon the knowledge and skills acquired in earlier ECE coursework The most influential course to our project had to be EE362 where we learned many things about digital circuit design The chip we used for our project was also similar to the one used in EE362 in many ways Other courses used were EE201 and EE255 We used the EE201 to do some of our simple circuit design for things like equiv
3. Since our customer will be bus companies the cost of our products which are about 300 400 will not be a huge expense for them The social part which we want our customer to have all information updates about the bus location Therefore besides looking at the LCD in each bus stop we add website interfacing so that the users can check the bus position from their home A7 Senior Design Report ECE 477 Spring 2003 Purdue ECE Senior Design Semester Report Semester Year Spring 2003 Course Number and Title ECE 477 Digital Systems Senior Design Project Team Name Group 4 Advisors Prof Meyer and Prof Talavage Project Title Digi YALi Senior Design Students Maior Area s of Expertise Expected J Utilized in Project Graduation Date Abhishek Gupta CmpE AI Digital Systems May 2003 Software Jalaj Chotani CmpE AI Digital Systems May 2003 Software Engineering Nitin Jethanandani CmpE Software Engineering May2003 Digital Systems Charles Raley CmpE Digital Systems May2003 Software Project Description Provide a brief one or two page technical description of the design project as outlined below a Summary of the project including customer purpose specifications and a summary of the approach The idea was to create a YALi game with enhanced features that helped the player and also made the game allot easier for beginners and more enjoyable The features that we wanted incorporated were
4. 8 Patent Liability Analysis 9 Reliability and Safety Analysis 10 Firmware Listing and Software Narrative 11 Social Political Environmental Analysis 12 User Manual 13 Confidential Peer Review 14 Senior Design Report Project Summary Grade Determination Your course grade will be based on both team effort 5096 and individual contributions 5096 TEAM COMPONENTS INDIVIDUAL COMPONENTS Project Proposal 1 and 3j Significance of Individual Contribution User Manual 12 Laboratory Notebook Senior Design Report 14 Design Component 5 6 7 or 10 Design Review Professional Component 4 8 9 or 11 Final Video Presentation OrCAD Exercise 2 Final Written Report amp Archive CD Peer Review DR 13 FP Project Success Criteria Satisfaction Weekly Progress Briefings Attendance Your Raw Weighted Percentage RWP will be calculated based on the weights above and then curved i e mean shifted with respect to the upper percentile of the class to obtain a Normalized Weighted Percentage NWP Equal width cutoffs will then be applied based on the Windowed Standard Deviation WSD of the raw class scores the minimum Cutoff Width Factor CWF used will be 10 i e the nominal cutoffs for A B C D will be 90 80 70 60 respectively Before final grades are assigned the course instructor will carefully examine all borderline cases i e NWP within 0 5 of cutoff Once grades are assigned they are FINAL a
5. __ yes no Degree Program BSEE BSCmpE Participant in Co Op Program _ yes company no Areas of expertise check all that apply _ programming software engineering tools digital hardware design computer networking digital signal processing communications analog hardware design control systems fields and optics biomedical other Continued on reverse side B 1 Senior Design Report ECE 477 Spring 2003 Do you wish to self select your teammates or be assigned to a team self select be assigned to a team If you wish to self select your teammates list the names of the individuals with whom you would like to work who are also planning to take ECE 477 the same semester as you Do you have a project idea in mind or would you prefer to have a project assigned to you have the following project in mind be as specific as possible __ would prefer to have a project assigned to me List the other courses including those outside ECE you plan to take concurrently with ECE 477 ECE Non ECE List any other known constraints on your time e g employment B 2 Appendix C Senior Design Report ECE 477 Spring 2003 ECE Senior Design Course Instructor Lab TA Evaluation Directions Circle the response that best represents your assessment of each criterion Ma
6. 270 there are still a few students in the pipeline that had 266 267 instead 4 Do you have any suggestions for improving this course If so explain Enrollment of 48 with the newly formulated quantitative evaluation component has stretched the course staff and lab facilities to the limit Yet only about half of the students who would like to take the course are able to enroll It is frustrating that students not fully motivated to contribute to a rigorous senior design project are able to enroll while other more highly motivated students are not It would be helpful to filter students based on their motivation desire to learn D 1
7. Analysis EE Circuit Construction Aaron Keith Massey CmpE Software Design Web May 2003 EE David Lloyd Selke Page Nicholas Anderson Layout Design Circuit May 2003 Construction Circuit Troubleshooting Project Description Provide a brief one or two page technical description of the design project as outlined below a Summary of the project including customer purpose specifications and a summary of the approach The project designed is a weather satellite demodulator system The customer is any interested party who wishes to see an image from a weather satellite The purpose of this project is to create a weather satellite demodulator that is able to display the images from weather satellites The specification of the project is that the project must be capable of displaying data from a weather satellite The approach used was to design a schematic of the circuit design a layout from that schematic fabricate the layout solder the components onto the board and to test the final circuit b Description of how the project built upon the knowledge and skills acquired in earlier ECE coursework The project built upon knowledge and skills acquired in earlier ECE coursework primarily through two channels The first was the knowledge of signals and systems and communications systems which I learned in EE 301 EE 302 and EE 440 along with the knowledge of filters I acquired in ECE 445 These helpe
8. Report Semester Year Spring 2003 Course Number and Title ECE 477 Digital Systems Senior Design Project Team Name Group 12 Advisors Prof Meyer and Prof Talavage Project Title Bluetalk Senior Design Students Maior Area s of Expertise Utilized Expected J in Project Graduation Date David Anderson Hardware Design May 2003 Nikhil Bhogal Software Web Development Fall 2003 Hoi Ho Chan Ade Sun Basorun Bluetooth Software May 2003 Software Fall 2003 Project Description Provide a brief one or two page technical description of the design project as outlined below a Summary of the project including customer purpose specifications and a summary of the approach The goal of the Bluetalk project was develop a pair of devices respectively referred to as the master and slave utilizing bluetooth transceivers that could transmit and receive and analog audio signal from a portable audio device CD MP3 or MD player In essence the idea behind the Bluetalk system was to prove the concept of a wireless distributed audio system The master device is the only static element of the whole system It provides the ability to tie the Bluetalk system into a home theater or automotive audio network via wired RCA audio output jacks The purpose of the project was to utilize the mobility and portability that a bluetooth wireless network can provide Bluetooth has a major advantage in that its transmission is
9. Report ECE 477 Spring 2003 Course Policies and Procedures Course Description A structured approach to the development and integration of embedded microcontroller hardware and software that provides senior level students with significant design experience applying microcontrollers to a wide range of embedded systems e g instrumentation process control telecommunication intelligent devices etc Objective To provide practical experience developing integrated hardware and software for an embedded microcontroller system in an environment that models one which students will most likely encounter in industry Instructors Prof D G Meyer meyer purdue edu Office MSEE 238 Phone 494 3476 and Prof T M Talavage tmt purdue edu Office EE 336 Phone 494 5475 Course Teaching Assistants John Leimgruber 1eimgrub and Jeffrey Jackson jh jackso will be available at scheduled or arranged times in lab for consultation Course web site nttp shay ecn purdue edu dsml ece477 Course E mail address ece477 ecn purdue edu Office Hours Scheduled office hours will be posted on the course web site other times may be arranged by E mail appointment Please make use of the live consultation hours available rather than E mailing long or detailed questions specific to your project Open Shop Lab Room EE 069 is the laboratory for this course students enrolled in ECE 477 will be given a key code that will p
10. a certain degree and take reasonable to ensure its users are not injured as a result of a failure The toy also uses radio band electromagnetic waves which are regulated by the government but a suitable frequency outside of the provided range could be select to avoid interference with those issues A12 Senior Design Report ECE 477 Spring 2003 Purdue ECE Senior Design Semester Report Semester Year Spring 2003 Course Number and Title ECE 477 Digital Systems Senior Design Project Team Name Group 6 Advisors Prof Meyer and Prof Talavage Project Title SWiMP Streaming Wireless Media Player Senior Design Students Area s of Expertise Expected Michael Arens Layout Design May 2003 Themen Danielson Microcontrollers May 2003 Hai Nguyen Microcontrollers May 2003 Siddarth Raghunathan Various Programming May 2003 Project Description Provide a brief one or two page technical description of the design project as outlined below a Summary of the project including customer purpose specifications and a summary of the approach This project was designed to provide a means of listening to digital music stored on a home PC in the living room Previously the only solutions were expensive or inconvenient The SWiMP provides a low cost and low impact no running wires drilling holes etc solution to this problem It is designed with the average user in mind it should be easy to install and easy to u
11. allows the user to completely flush out all of the liquid that is contained in the selected container In this way cleaning is easy because the user never has the need for removing the containers from the apparatus We believe that we have made The Boilermixer as low cost as possible When selecting parts to use cost played a major role However we did not sacrifice cost for quality in any way The Boilermixer is a cost effective reliable product AS Senior Design Report ECE 477 Spring 2003 Purdue ECE Senior Design Semester Report Semester Year Spring 2003 Course Number and Title ECE 477 Digital Systems Senior Design Project Team Name Advisors Prof Meyer and Prof Talavage Project Title Bus Tracking System Senior Design Students Area s of Expertise Expected Utilized in Project Graduation Date Software Software Software Software Project Description Provide a brief one or two page technical description of the design project as outlined below a Summary of the project including customer purpose specifications and a summary of the approach The customer of this product is transportation system The main customers are all bus transportation companies who want to make their passengers more satisfies the bus passengers and the bus driver The purpose of this project is to inform the bus passengers waiting in the bus stop whether they miss the bus or not Another purpose of this project is
12. and towards the front of the robot This was a design constraint that we had to think about when designing the packaging Also we had to make sure our design did not infringe on other products that already had patents Finally we had to make sure that our project can be marketed as a safe product A19 Senior Design Report ECE 477 Spring 2003 f Summary of how realistic design constraints were incorporated into the project where appropriate include economic environmental ethical health amp safety social and political constraints as well as considerations related to sustainability and manufacturability Our biggest design constraint was the use of batteries to power our robot In all of the design work we have done in the past we never had to consider power as a constraint Since Shadow used three servos there is quite a bit of power usage and power conservation is needed One example of how we tried to limit power consumption is when we removed unnecessary components of our final product The circuit board inside shadow does not have a MAX202 chip because it is unnecessary By removing the chip we are able to save a few milliamps of current Another idea we tried but did not implement was to use very small resistors on the order of a few ohms to limit the amount of current drawn from the batteries For example we measured the CMUcam to have a resistance of about 40 ohms Since 6 volts will need to be dropped across the CMUca
13. constraints as well as considerations related to sustainability and manufacturability We reduced the size of the game to half 40 locations so as to be easily able to prototype since the wiring involved with the original board 80 locations was too tedious and cumbersome Y ALi being a game marketed towards age group 8 and above was required to be kept enjoyable easy and low cost The original game cost 25 dollars while our enhanced version of the game cost 160 dollars to prototype This value will reduce once the unit is mass produced but this required us to keep the cost of the parts for our design low Use of a larger LCD screen would make the number of turns remaining indicator and error indicator much clearer which at present is cramped on the same line at present along with other vital information Our product being targeted towards kids possess a health hazard for young kids who might swallow the game pieces thus requiring adult supervision The motor had to be turned slowly so as not to throw away the game pieces Ethics required us to create a bug free design and software code A10 Senior Design Report ECE 477 Spring 2003 Purdue ECE Senior Design Semester Report Semester Year Spring 2003 Course Number and Title ECE 477 Digital Systems Senior Design Project Team Name Group 5 Advisors Prof Meyer and Prof Talavage Project Title Fembot5 Dem per umm omma Utilized in Project Graduation Date
14. microcontroller based hardware and successfully integrated their application software Some groups in fact continued to work on their projects after the semester was over just for fun to add features and or obtain a higher degree of functionality In short students not only devoted a lot of time to this course but they also learned a lot in the words of several students more than in all their other ECE courses combined The complete set of Senior Design Reports is included as Appendix A Self Evaluation A major change was put into effect this semester which provided specific quantitative evaluation of each team member s professional and design contributions A series of four design component assignments along with four professional component assignments were defined where each team member was required to complete one assignment from each group Further these assignments represented the first draft of corresponding sections of the team s final report which enabled the course staff to give detailed feedback toward improving the quality of the final reports The significant weight of these assignments allowed us to adopt a 50 50 grading scheme i e course grade based on 50 individual contribution with the other 50 based on the team component The high degree of success achieved by each team was a direct result of the availability of the course staff to spend a significant amount of time consulting with ea
15. to inform the bus driver if the bus is full or not The Bus Tracking system is a system which informs passengers in every bus stop about the last bus stop where each bus was seen The bus will send the Bus ID continuously through an RF transmitter in each bus When the RF receiver in a bus stop receives the signal that bus stop will update the position of the bus in its system by showing it in the LCD and also informs all other bus stops to update the information about that bus In addition the position information will also be displayed on the website The bus tracking system also informs the driver in the corresponding bus about the number of people inside the bus This helps the driver to determine if the bus is already full or not This can be done by utilizing 3 IR sensors installed on the front door and the back door b Description of how the project built upon the knowledge and skills acquired in earlier ECE coursework We use a lot of stuff from Circuit analysis class and EE255 EE270 to figure out how the IR works all capacitor resistor values and all of circuit analysis We also utilized the skill from EE264 about C programming EE362 also helps us a lot in the microcontroller interfacing A6 Senior Design Report ECE 477 Spring 2003 c d e f Description of what new technical knowledge and skills if any were acquired in doing the project RF IR LCD ATMEL and RABBIT microcontroller Description o
16. SAE standards documents which will make future projects easier Jason Ridenour I learned some valuable leadership techniques I also learned the importance of planning ahead for project deadlines I learned the difficulties of trying to keep several people working productively at the same time I was already familiar with hardware layout and PCB population but my skills definitely improved by working on this project I learned how to use a C based programming suite to program a microcontroller I also learned how to debug a circuit and its software while it is in its operational phase Brian Dunn Although my main contributions were on the hardware side of things I learned the most when working with software development Coming into this class I had taken only an introductory course in C which had been long since forgotten I am now confident I could develop firmware in a C environment for embedded systems design This is something I value greatly as it s a useful skill to have but something I did not develop until this course Namit Prasad I learned how to use design tools like ORCAD capture Layout for a design process In depth knowledge of a new standard OBD II interfacing a microcontroller with real life peripherals like LCD amp Keypad and most importantly the value of team work are some of the major things I have learned in this class Description of how the engineering design process was incorporated into the project Virtually a
17. Senior Design Report for ECE 477 Spring 2003 submitted by Prof David G Meyer May 10 2003 School of Electrical amp Computer Engineering Purdue University Senior Design Report ECE 477 Spring 2003 Contents OVErVIEW A 1 Self EyvalyatioN MD e EE 1 Course Policies and Procedures csvic cso se cs oix pe cto EE fy Chas dey pleas ed eee eden Mp QUEE 2 Grace NS anro TP 3 IE vicissim 4 Design Project SpecificatlonS os esed press exc Een ia eEx de Ri UR EE ERIS Drm eun dq UD KERRO 5 MilestOnES co rsrertruri 7 Outcome ASSESSMENT e T EREE ES 8 Appendix A Senior Design Reports Appendix B Proposed Application Form Appendix C Proposed Evaluation Form Appendix D ECE Course Assessment Report ES Senior Design Report ECE 477 Spring 2003 Overview One of the unique features of ECE 477 Digital Systems Senior Design Project is that each team gets to choose their own specific project subject to some general constraints and define specific success criteria germane to that project In general this approach to senior design provides students with a sense of project ownership as well as heightened motivation to achieve functionality All project teams this semester successfully designed and built a printed circuit board achieved at least basic functionality of their
18. a digital oscilloscope and creating basic logical elements with discrete parts were invaluable skills to have for our project Following the basic topics covered in ECE270 ECE362 was also tremendously useful In ECE362 we examined timing diagrams and how to understand gate and port delays The ability to set a logic analyzer up to watch logic levels was crucial to debugging the CODEC in our project Lastly ECE255 with its basic instruction in amplifier and transistor circuits was incredible helpful Description of what new technical knowledge and skills if any were acquired in doing the project The new skills that we have learned are centered on the development of Bluetooth interfaces We now understand many of the variables and issues e g timing power etc related to the implementation of a Bluetooth chipset Additionally many skills related to board design have also been developed Primarily we have discovered the need to correlate a bill of materials with the correct footprints of the parts Description of how the engineering design process was incorporated into the project The project fundamentally demonstrates the engineering design process by providing the ability to walk a design from concept to experimentation to design to implementation to manufacturing and finally testing and product delivery In the beginning of our project the task of creating an idea and establishing a series of success criterion was the first step T
19. ackground in diodes and other semiconductor devices More importantly advanced C programming was learned in ECE 264 All of the programming for this project was done in C ECE 270 provided the basics of digital systems This included topics such as pull up resistors and logic states Finally A18 Senior Design Report ECE 477 Spring 2003 c d e ECE 362 was extremely instrumental in this project It gave us exposure to programming and using a microcontroller PWM s and ATD s were first learned in 362 and were used extensively in this project Description of what new technical knowledge and skills if any were acquired in doing the project We feel that we have acquired the following technical skills over the semester long project 1 We learned and implemented I2C protocol though we did not use it in the final design 2 We learned how to interface a microprocessor with several devices and get the entire design to function harmoniously 3 We learned to design a Printed Circuit Board and the rationale for placing various electronic chips and headers on it and by routing the wires on the board 4 Welearned how to simplify our software to fit the constraints of hardware For many of us it was a first experience with soldering 6 It was an interesting introduction to Robot Design as we were successfully able to design and implement a Robot 7 We learned how servos worked and we also were able to transform them to motor
20. alent resistance voltage dividers and for our power systems We also used EE255 to design some amplifier circuits to drive motors using transistors c Description of what new technical knowledge and skills if any were acquired in doing the project The most obvious technical skill that we learned was probably the use of the OrCAD development suite in order to create a circuit and printed circuit board layout This was all new to the entire group Since we are all computer engineers we also learned a lot about All Senior Design Report ECE 477 Spring 2003 d e f power circuits Another interesting problem that we had to tackle late in the project concerned electro magnetic forces which showed up when our circuit was powered up Also our embedded programming experience was greatly increased due to the breadth of our project and the lack of professor provided specifications as in previous coursework Description of how the engineering design process was incorporated into the project Due to the nature of our task being a design assignment we had to incorporate and develop our engineering skills from the beginning At the beginning of the project we had a rough idea of what we needed done However we needed to simply start specifying out all the things we thought it would require Then we had to go through the process of picking components that would fit our needs along with all the compromises that goes with that pr
21. are organization and development tools Week 11 Tu interactive broken board debugging Th interactive broken board debugging Week 12 Tu social political environmental considerations Th user manual final report and final presentation guidelines Week 13 Tu current embedded system topics Th current embedded system topics Week 14 Tu current embedded system topics Th course summary and evaluation Week 15 Tu no class Project Presentations individually scheduled this week Th no class Project Presentations individually scheduled this week FR Senior Design Report ECE 477 Spring 2003 Design Project Specifications Work on the design project is to be completed in teams of four students The design project topic is flexible and each group is encouraged to pick a product that uses the strengths and interest areas of their group members The design must have the following components Microprocessor To help make the project tractable microprocessor choices will be limited to 68HC12 PIC Rabbit and Atmel variants Development tools are readily available in lab to support these devices Further the devices themselves are relatively low cost and readily available Interface to Something Your embedded system must interface to some other device or devices It could be a computer or it could be some embedded device such as a Pa
22. c environmental ethical health amp safety social and political constraints as well as considerations related to sustainability and manufacturability Our design constraints were feasibly realistic but not corporately realistic If our design was to go into production the LCD we chose would not be used because it is far too expensive Environmentally our design constraints were realistic because if the product went to market we would incorporate certain caveats so that the end user couldn t ignore their check engine light forever or change their fuel to air ratio Ethically and safety speaking the final design would certainly require many little yellow flags warning the user not to use the device while driving and not to ignore the EPA standards A17 Senior Design Report ECE 477 Spring 2003 Purdue ECE Senior Design Semester Report Semester Year Spring 2003 Course Number and Title ECE 477 Digital Systems Senior Design Project Team Name Group 8 Advisors Prof Meyer and Prof Talavage Project Title Shadow Dem per uem omma Utilized in Project Graduation Date Mark Harris Hardware May 2003 Samir Chopra Software Hardware May 2003 Azhar Salim Software May 2003 Vamsi Vytla Software May 2003 Project Description Provide a brief one or two page technical description of the design project as outlined below a Summary of the project including customer purpose specifications and a summary o
23. ch team Another reason for the high degree of success attained was the incredible effort put forth by our outstanding teaching assistants John Leimgruber and Jeffrey Jackson A problem inherent in all open ended project courses is the tractability of the student chosen design projects The staff needs to be more forceful in suggesting alternative ideas and in rejecting project proposals that are too ambitious Also the course and instructor evaluation forms used by the senior design courses in particular ECE 402 and ECE 477 need to be revamped The forms developed for EPICS were used by default until they no longer were made available to us I have developed an alternative form compatible with the University s PICES system and used it on an experimental basis in ECE477 for several semesters I will once again attempt to present the idea of a universal senior design evaluation form to the ECE Senior Design Committee at its next meeting Finally the ECE Administration is encouraged to remain cognizant of the fact that ECE 477 is not a standard 3 credit hour load the amount of evaluation and consultation required is several times that of a normal course Increasing the enrollment to 48 12 teams this semester has stretched the limits of the lab and staff capacity At least two faculty along with two half time teaching assistants need to be assigned to this course if the enrollment remains at 48 Senior Design
24. ckaging Basic mechanical skills were needed in the creation of the maze Soldering skills were required in creating the board as well General circuit knowledge was needed in the linking of components headers and miscellaneous components Summary of how realistic design constraints were incorporated into the project where appropriate include economic environmental ethical health amp safety social and political constraints as well as considerations related to sustainability and manufacturability Our main priority was to make the robot and maze portable This meant making the mouse small and the maze collapsible The mouse needed to be reasonably reliable so that users would be learning about programming and not how to upkeep the robot To make the robot accessible to large amounts of people it needed to be cheep and vacant of unusual components A22 Senior Design Report ECE 477 Spring 2003 Purdue ECE Senior Design Semester Report Semester Year Spring 2003 Course Number and Title ECE 477 Digital Systems Senior Design Project Team Name Group 10 Advisors Prof Meyer and Prof Talavage Project Title RF Model Train Kit Senior Design Students EN RENI ER m Utilized in Project Graduation Date Bill Nagel 3D graphics May 2003 communications Dave Lukach Microchip programming May 2003 debugging Shahid Manzur RF communications May 2003 protocol Josh Allen Sensors interfacing May 2003 P
25. d left right Then download the program to the mouse The mouse will follow the users program keeping track of its position by measuring stripes in the maze If the mouse does not reach the end of the maze by following the user s program the mouse will hit a push button and drive back to the start to be reprogrammed b Description of how the project built upon the knowledge and skills acquired in earlier ECE coursework Linear Circuits 2 Logic 3 Programming 4 Fundamental semiconductor concepts c Description of what new technical knowledge and skills if any were acquired in doing the project Team work reliable and helpful team members are the recipe of success e New electronics components such as microcontrollers infrared sensors switching power supplies Robotic control system Firmware development Practical applications of microcontroller A21 Senior Design Report ECE 477 Spring 2003 d Description of how the engineering design process was incorporated into the project e f We followed a top down method of designing the project We implemented a basic block diagram for the project along with constraints to be met After prototyping each of the major components we made a schematic and layout of the design The final stage was debugging of the project Description of the multidisciplinary nature of the project Aesthetic knowledge was needed in the creation of the GUI and the mouse pa
26. d me in the design of the front end The other channel was the digital skills which I learned through ECE 362 and ECE 364 A25 Senior Design Report ECE 477 Spring 2003 c d e f Description of what new technical knowledge and skills if any were acquired in doing the project The new technical skills that I learned for this project include the use of Orcad in circuit design and layout the process required for transferring a design from an Orcad layout to a physical implementation and the skills gained in more deeply understanding the issues surrounding the RF implementation of a receiver Description of how the engineering design process was incorporated into the project The engineering design process was incorporated into the project in the manner in which we set about designing the system The first step was the design of the system and the discovery of which specifications that had to be met The second step was the design of components that meet those specifications The third step was the integration of these components to each other Description of the multidisciplinary nature of the project The multidisciplinary nature of the project was evident in the skills learned to realize a circuit layout Once the layout was completed in Orcad it had to be constructed by the company Advanced Circuits Once the layout was constructed the components had to be soldered on and this required the surface mount solder
27. e A microcontroller controls all of the functionality of the machine including opening and closing the valves for the containers There are also separate LEDs for each container which light up both when that ingredient is in use as well as after a drink has been made in case the drink uses that ingredient b Description of how the project built upon the knowledge and skills acquired in earlier ECE coursework This project required knowledge and skills from several different earlier ECE classes First on the circuit side of the project most of the knowledge had been acquired in ECE 201 and ECE 255 which included knowledge about transistors voltages currents construction of circuits current limiting resistors and AC to DC wave rectification Picking out and interfacing the microcontroller pulled knowledge from ECE 270 fanouts noise margins and ECE 362 The software for the project also pulled knowledge from ECE 264 C programming ECE 270 state machines ECE 362 microcontroller specific considerations and ECE 495A uC architecture effects on software including database optimization A3 Senior Design Report ECE 477 Spring 2003 c d e Description of what new technical knowledge and skills if any were acquired in doing the project There was actually quite a bit of new technical knowledge acquired during ECE 477 that either was not taught in previous courses or which was not remembered due to large amoun
28. e audio signal processors and security systems Be tractable You should have a basic idea of how to implement your project and the relative hardware software complexity involved For example you should not design an internet appliance if you have no idea how TCP IP works Also plan to use parts that are reasonably priced have reasonable footprints and are readily available Be cognizant of the prototyping limitations associated with most flash memory based microcontrollers like the 68HC912B32 and most PIC microcontrollers for example Be neatly packaged The finished project should be packaged in a reasonably neat physical sound environmentally safe fashion Complete specification and CAD layout of the packaging represents one of the project design components Not involve a significant amount of physical construction The primary objective of the project is to learn more about digital system design not mechanical engineering Therefore most of the design work for this project should involve digital hardware Senior Design Report ECE 477 Spring 2003 Project Proposal Each group should submit a proposal outlining their design project idea This proposal should not be wordy or lengthy It should include your design objectives design functionality overview and project success criteria The five success criteria common to all projects include the following Create a bill of materials and order sample all parts needed
29. e in ECE 477 i an ability to apply knowledge obtained in earlier coursework and to obtain new knowledge necessary to design build and test a microcontroller based digital system ii an understanding of the engineering design process iii an ability to function on a multidisciplinary team iv an awareness of professional and ethical responsibility v an ability to communicate effectively in both oral and written form All of these outcomes were addressed and as indicated below all students enrolled during the Spring 2003 offering of ECE 477 successfully demonstrated each outcome Average Outcome Scores and Outcome Demonstration Statistics for ECE 477 Spring 100 00 Failed 48 100 00 Failed 48 100 00 Failed 48 100 00 Failed 48 100 00 Failed 48 Outcome Avg Score 85 Passed 48 48 Outcome Avg Score ds Passed 48 48 Outcome Avg Score 93 Passed 48 48 Outcome Avg Score 82 Passed 48 48 Outcome Avg Score 85 Passed 48 48 Demonstrated all five outcomes based on primary assessment 48 48 100 00 2 Are the course outcomes appropriate Yes 3 Are the students adequately prepared for this course and are the course prerequisites and co requisites appropriate If not explain For the most part they are adequately prepared provided they actually remember the prerequisite material covered in ECE 270 and ECE 362 I find that I still have to review certain material that is now covered in ECE
30. e our components albeit after we already had most of them and determine the considerations that should be taken in order for our product to be manufactured used and disposed of safely A2 Senior Design Report ECE 477 Spring 2003 Purdue ECE Senior Design Semester Report Semester Year Spring 2003 Course Number and Title ECE 477 Digital Systems Senior Design Project Team Name Group 2 Advisors Prof Meyer and Prof Talavage Project Title Boilermixer Lem pe uuum omma Utilized in Project Graduation Date David Reiner uC amp C Programming Dec 2003 Tracy Wells Hardware dsn amp debug May 2003 Ed Maia Website amp hardware May 2003 Jim Marsh Feasibility Construction May 2003 Project Description Provide a brief one or two page technical description of the design project as outlined below a Summary of the project including customer purpose specifications and a summary of the approach The Boilermixer is an automated drink mixing machine Its purpose is to make the task of mixing ingredients and remembering recipes easier The target customer would be middle class young people ages 21 through 25 although it can easily be used by anyone 21 or older It is capable of creating a number of drinks from the ingredients located in its 6 cylindrical containers These cylinders are supported by a wooden structure which also has a 4 x 20 LCD panel and a 4 x 3 keypad for easy user interfac
31. f how the engineering design process was incorporated into the project All of the homework assigned can be illustrated as the design process For example we have to decide our design After that we need to choose components After choosing the component we need to think about our product packaging Next we have to try to build and test hardware and software design of our project in the prototyping board Then we have to start producing the schematic and layout of our project After we received the board we start to populate the board while we are thinking about reliability and ethical issues After everything is done our product is again tested to see if it is going to work in the PCB board After testing it we have our product ready to be promoted to our customers which in this case are our teachers Description of the multidisciplinary nature of the project The disciplinary of this project utilized are EE Computer Engineering and social science In the ECE we use C programming language microcontroller and circuit analysis In the social disciplinary we realized that people need a device that can inform them about the bus position in order to smooth their activities Summary of how realistic design constraints were incorporated into the project where appropriate include economic environmental ethical health amp safety social and political constraints as well as considerations related to sustainability and manufacturability
32. f the approach The goal of this design project was to create a vision guided robot that follows a brightly colored ball The resulting product was Shadow Shadow locates the ball and then attempts to keep it in its field of vision In addition Shadow tries to maintain a set distance from the ball by advancing and retreating as necessary Shadow is primarily intended to be a toy for children Amusement is its only true purpose However due to its high level of technology and capabilities it can be altered for other purposes For instance it could be modified to respond to voice commands to locate and retrieve a specific object In this way it could be used to assist injured and disabled persons Shadow consists mainly of a camera microcontroller IR range sensor and control servos The camera is used to locate the ball The microcontroller uses the information provided by the camera to adjust the location of the head and the position of the robot body to keep the ball in the field of vision The IR range sensor is used to determine the distance to the ball and controls when Shadow should move forward or backward b Description of how the project built upon the knowledge and skills acquired in earlier ECE coursework Skills learned in prior ECE classes were very important to this project Basic circuit analysis skills were obtained in ECE 201 and 202 which allowed us to design and troubleshoot our schematic and board ECE 255 provided a b
33. for the design Develop a complete accurate readable schematic of the design Complete a layout and etch a printed circuit board Populate and debug the design on a custom printed circuit board Package the finished product and demonstrate its functionality In addition to the success criteria listed above a set of project specific success criteria should be specified The degree to which these success criteria are achieved will constitute one component of your team s grade Forms for the preliminary and final versions of your team s project proposal are available on the course web site Use these skeleton files to create your own proposal Note that the proposal should also include assignment of each team member to one of the design components as well as to one of the professional components of the project Design Review Part way through the design process there will be a formal design review This is a critical part of the design process In industry this phase of the design process can often make or break your project A good design review is one where a design is actively discussed and engineers present concur with the current or amended design The design review is in some cases the last chance to catch errors before the design is frozen boards are etched and hardware is purchased A friend is not someone who rubber stamps a design but rather one who actively challenges the design to confirm the design is correct Approach the design re
34. hen we discovered how to implement those criterions by finding parts that could fulfill the requirements We prototyped the ideas and then froze the design when were satisfied with its performance At the midterm we presented our ideas and work to a peer review group taking feedback to improve our design We made modifications to the design based upon the feedback and then froze our design for the final time with the creation of the PCB Once PCBs were obtained we populated parts and began to test our design The final step was the presentation of the completed product Description of the multidisciplinary nature of the project In the project the ability to perform a variety of multi disciplinary tasks was crucial Additionally the ability to see the project from a variety of perspectives also served to foster the project Understanding the impact that the design could have and understanding our end application with the customer in mind were the greatest use of our multi disciplinary backgrounds One skill which was utilized the most was our ability for public speaking Internally we held design meetings where each person would have to present their ideas Externally we gave design reviews where each person would have to present the project Project presentation also draws on our verbal communication skills as well as our graphical design skills for visual aids A28 Senior Design Report ECE 477 Spring 2003 f Summary of how reali
35. ing lab of the EET department Professor Blackwell did an excellent job of teaching us how to solder and assemble the components of the circuit Professor Chappell enlightened us on different aspects of implementing the antenna that we finally choose to implement and told us about design considerations with it Summary of how realistic design constraints were incorporated into the project where appropriate include economic environmental ethical health amp safety social and political constraints as well as considerations related to sustainability and manufacturability Realistic design constraints were included in the project in the area of antenna design The antennas are collapsible so that they are able to be more feasible for portability and they are capped at the ends for safety The project design worksheets describe packaging that the project will be packaged in which allows for the safety of the user Environmentally our project has little impact except for the many toxic materials from which the circuits are constructed The consequences of using such materials is a well known problem for the electronics industry and new technology and techniques may be able to solve these problems soon The manufacturability of these boards is excellent due to the circuit manufacturers available on the web which will be used for any further production A26 Senior Design Report ECE 477 Spring 2003 Purdue ECE Senior Design Semester
36. jor SA CmpE A EE U other SA AUD SD Hours week outside class SA 1 2 A 3 4 U 5 6 D 7 9 SD 10 or more SA AUD SD Your current GPA SA 3 50 4 00 A 3 00 3 49 U 2 50 2 99 D 2 00 2 49 SD lt 1 99 COURSE SA excellent A good U average D marginal SD poor Significance of design experience SA AUD SD SA A U D SD Specification and clarity of design project requirements SA A U D SD Relevance of design experience to your personal career goals and objectives SA A U D SD Relevance of lecture topics to course objectives and outcomes SA A U D SD Quality and clarity of course documents SA A U D SD Clarity of grading standards and methodology SA A U D SD Usefulness of feedback provided on graded materials and peer evaluations SA AUD SD Effectiveness of homework assignments in pacing the design project Clarity and awareness of course outcomes SA A U D SD SA A U D SD Course outcome assessment procedures INSTRUCTOR SA excellent A good U average D marginal SD poor Qualifications of instructor SA A U D SD SA A U D SD Effort put forth by instructor SA A U D SD Instructional techniques used in classroom presentations SA A U D SD Effectiveness in answering questions Rapport with students SA A U D SD SA A U D SD Availability during scheduled office hours SA A U D SD Dedication of instructor to helping student
37. ledge of the design process and what it takes to create a prototype Description of how the engineering design process was incorporated into the project The engineering design process was the backbone of our system We first specified the requirements we needed to ensure a working final product We then acquired the parts and began creating prototypes to test them Once the prototypes were completed we were able to fabricate a circuit board to integrate all the modules together Finally we were able to test each module with each other and ensure perfect operation Description of the multidisciplinary nature of the project This project involved many aspects of Systems Engineering Electrical Engineering Computer Engineering Mechanical Engineering product reliability and even law Each of these disciplines played a valuable role in the success of our project and was absolutely necessary The project began with Systems specifying requirements and deadlines It also involved Electrical Engineering to design the layout and schematic Vast amounts of Computer Engineering went into the software and a small amount of Mechanical Engineering into the packaging design Finally such non technical disciplines such as reliability analysis and law went into evaluating the final product and its manufacturability Summary of how realistic design constraints were incorporated into the project where appropriate include economic environmental ethical hea
38. ll aspects of the engineering design process were incorporated into this project Beginning with product conception and definition we saw how any project begins The product development cycle began with circuit design and prototyping schematic capture and PCB layout Following these elements were board population and debugging along with a second rev to the PCB and then firmware development Finally an appropriate packaging scheme and creating a user s manual capped off the development cycle The only aspect left untouched would be the troubleshooting and revisions after years of use in the real world A16 Senior Design Report ECE 477 Spring 2003 e Description of the multidisciplinary nature of the project f There were many areas of expertise that were utilized in bringing the QuickScanner to fruition From the obvious technical standpoint circuit design required knowledge of discrete components and how they interface with other parts of the system Furthermore a strong background in programming was required for the development of firmware A less apparent facet to this design project was the managerial and professional aspects more formally stressed through the professional component design homeworks These included a patent liability analysis ethical and environmental concerns and reliability calculations Summary of how realistic design constraints were incorporated into the project where appropriate include economi
39. lm Pilot telephone line TV etc Some interface standards that could be used are serial to a computer parallel to a computer Universal Serial Bus USB Firewire Ethernet Infrared IR Radio Frequency RF etc This requirement has a large amount of freedom To help with some of the more complex interfaces such as Ethernet USB or Firewire there are dedicated chips which encapsulate the lowest layers of the interface This makes using these interfaces easier to handle but not necessarily trivial Be sure to investigate the interface s you wish to utilize and make a reasonable choice NOTE Interfaces involving A C line current require special permission see the instructor for details Custom printed circuit board Through the process of the design each group will be required to draw a detailed schematic From the schematic a two layer maximum printed circuit board will be created The board will etched by a local board house The team is then responsible for populating the board solder the parts on the board and for completing the final stages of debugging and testing on their custom board Be of personal interest to at least one team member It is very difficult to devote the time and energy required to successfully complete a major design project in which you and or your team members have no personal interest There are ots of possibilities ranging from toys and games to useful and socially redeeming household items lik
40. log and August 2003 Digital Circuits EE Project Description Provide a brief one or two page technical description of the design project as outlined below a Summary of the project including customer purpose specifications and a summary of the approach This project was designed to be an interactive demonstration of various electrical and computer engineering disciplines for HKN to use to generate interest in the school HKN wanted something that was portable easy to setup and could run on battery power The result of these criteria was our autonomous maze robot The basic idea was to develop a robot that could find its way through a maze that may be changed at the start of the robot s run The robot would then move through the maze using infrared sensors to detect the openings in the maze walls and optical encoders placed on the wheels to monitor the distanced moved and the speed of the robot The end of the maze is marked by a magnet which is placed in an accessible grid space by the user and is detected by the robot using a reed sensor b Description of how the project built upon the knowledge and skills acquired in earlier ECE coursework The project required the team to learn more about interfacing various types of digital and analog hardware with a microcontroller in an embedded system and utilized skills and knowledge acquired in EE 270 Digital Logic Design as well as EE 362 Microcontroller Design The software was writ
41. lth amp safety social and political constraints as well as considerations related to sustainability and manufacturability Besides the obvious fact that this product was merely a prototype real world design constraints were taken into account We analyzed the product from a manufacturing perspective to determine what components we could remove what features we could add and what costs we could cut We determined such things as safety what would we need to do to the project to make sure someone doesn t misuse it and cause injury to person or property We also analyzed our product to see what impact on society it could cause Does it infringe on the rights of recording artists to have their music available in the living room from a PC that could have illegal copies on it These are just some of the constraints we addressed as a group A14 Senior Design Report ECE 477 Spring 2003 Purdue ECE Senior Design Semester Report Semester Year Spring 2003 Course Number and Title ECE 477 Digital Systems Senior Design Project Team Name Group 7 Advisors Prof Meyer and Prof Talavage Project Title OBD II Senior Design Students Maior Area s of Expertise Expected J Utilized in Project Graduation Date Jason Ridenour CmpE Hardware Software May 2003 interface amp debug amp Leadership Brian Dunn EE Hardware development May 2003 PCB pop amp debug Brian Todd Thrall CmpE Embedded Software December 2003 Aut
42. m and the source voltage is none volts we could in theory add a resistor to drop the extra three volts and ease the work of the voltage regulator We tried this but found that the CMUcam became unreliable and the amount of current we were saving did not outweigh the risk we were taking Safety measures were also taken into account We recognized choking hazards and mentioned them in the user manual We also analyzed how Shadow would effect the environment We mentioned noise pollution and danger of contact with the lead solder A20 Senior Design Report ECE 477 Spring 2003 Purdue ECE Senior Design Semester Report Semester Year Spring 2003 Course Number and Title ECE 477 Digital Systems Senior Design Project Team Name Group 9 Advisors Prof Meyer and Prof Talavage Project Title Speedy Gonzales Senior Design Students Dem pe uuum omma Utilized in Project Graduation Date Pedro De Keratry Computer Engineering May 2003 Michael Maletich Computer Engineering May 2003 Kevin Morlock Computer Engineering May 2003 Erick Sunarto Computer Engineering May 2003 Project Description Provide a brief one or two page technical description of the design project as outlined below a Summary of the project including customer purpose specifications and a summary of the approach The project is a learning tool for young programmers User will program the mouse via a GUI to move through a maze forwar
43. n ability to function on a multidisciplinary team 6 7 d h j iv an awareness of professional and ethical responsibility 6 7 f h j v an ability to communicate effectively in both oral and written form 6 g The following instruments will be used to assess the extent to which these outcomes are demonstrated the forms used to score each item are available on the course web site Outcome Evaluation Instruments Used i Design Component Homework ii Individual Lab Notebooks two separate evaluations iii Project Success Criteria Satisfaction iv Professional Component Homework v Formal Design Review Final Presentation and Final Report Students must demonstrate basic competency in all the course outcomes listed above in order to receive a passing grade Demonstration of Outcome 1 will be based on the satisfaction of the design component homework for which a minimum score of 60 will be required to establish basic competency Demonstration of Outcome ii will be based on the individual lab notebook for which a minimum score average of two separate evaluations of 60 will be required to establish basic competency Demonstration of Outcome iii will be based on satisfaction of the project success criteria for which a minimum score of 60 will be required to establish basic competency Demonstration of Outcome iv will be based on the professional component homework for which a minimum
44. nd WILL NOT be changed Note that all course outcomes listed on page 7 of this document must be demonstrated in order to receive a passing grade for the course Senior Design Report ECE 477 Spring 2003 Lecture Schedule Tentative Week 1 Tu course and project overview team formation Th project proposal guidelines and documentation requirements Week2 Tu PCB layout basics OrCAD demo packaging specifications Th technical writing guidelines real world design constraints Week3 Tu microcontroller survey PIC Th microcontroller survey Rabbit Week4 Tu microcontroller survey Atmel Th interfacing D C and A C loads optical isolation Week 5 Tu interfacing keypad encoding switch debouncing RPGs Th interfacing PWM applications position control steppers LCDs Week 6 Tu power supply design basic considerations linear regulators Th power supply design switching regulators DC DC converters Week 7 Tu capacitor and resistor selection guidelines Th patent infringement liability Week 8 Tu no class Design Reviews individually scheduled this week Th no class Design Reviews individually scheduled this week Week 9 Tu design for reliability maintainability and safety Th FMECA worksheet Week 10 Tu soldering issues and techniques board construction tips Th embedded softw
45. neering classes But even specialization was necessary within our majors For instance specific knowledge about microcontrollers and software was necessary to properly program and interface the ATmega32L microcontroller Extensive knowledge about circuit design was A4 Senior Design Report f ECE 477 Spring 2003 needed in creating useful circuits Also a general knowledge for user interfacing was useful when designing the look and feel of the project The culmination of all of these skills made the plans for the Boilermixer a reality Summary of how realistic design constraints were incorporated into the project where appropriate include economic environmental ethical health amp safety social and political constraints as well as considerations related to sustainability and manufacturability There were many realistic design constraints which were incorporated into The Boilermixer The first realization was that we were using both water and electricity which meant that there was a potential fire hazard With this in mind we planned on isolating all of the electrical components from any areas where water might be This was done both by mounting the PCB inside a plastic Tupperware dish and also by inserting rubber rings around all of the containers so that if any spills occurred on the outside the water would not be able to seep into the box For user convenience we included an option in the menus called clean This
46. nitial board schematic was laid out After the design review changes were made to the schematic and the PCB was designed and constructed The parts were then soldered to the board and individual blocks were tested Once we were satisfied with the testing we tested overall software functionality in the microcontroller The rest of the project involved testing and debugging Description of the multidisciplinary nature of the project The project had both electrical and computer engineering aspects The robot required knowledge of motors sensors and controls which are all EE disciplines The robot also required the use of a microcontroller and therefore needed a fair amount of embedded software The packaging of the robot required a slight amount of mechanical knowledge Summary of how realistic design constraints were incorporated into the project where appropriate include economic environmental ethical health amp safety social and political constraints as well as considerations related to sustainability and manufacturability The process of selecting components for the design was divided equally among all members of the group We searched for components that could be sampled to reduce overall cost and analyzed data sheets for components that would function properly under expected testing conditions operating currents temperature etc The professional lectures and homework assignments provided us with the knowledge necessary to analyz
47. o a microcontroller and programming that microcontroller and a host computer Summary of how realistic design constraints were incorporated into the project where appropriate include economic environmental ethical health amp safety social and political constraints as well as considerations related to sustainability and manufacturability Our main constraint involved working with the very rigid size requirements of the existing model trains There was only a small amount of space inside the casing and all the parts needed for our functionality had to share this area Circuit board design was especially tricky as we had to minimize excess board space and sand down the sides just to fit it inside Also we tried to use as short and small of wires as possible for other connections Another constraint we had came from the fact that we were only running the train off the 12 volt DC track so all components needing a different source voltage had to be run through regulators A24 Senior Design Report ECE 477 Spring 2003 Purdue ECE Senior Design Semester Report Semester Year Spring 2003 Course Number and Title ECE 477 Digital Systems Senior Design Project Team Name Group 11 Advisors Prof Meyer and Prof Talavage Project Title Weather Satellite Demodulator Utilized in Project Graduation Date David Alan Schick EE RF Design Circuit Design Layout Design Software Circuit Troubleshooting Circuit Design May 2003 Constraint
48. ocess Real world constraints like size and cost came into scope during this process It became imperative that the correct components were selected in order for the project to become a success Description of the multidisciplinary nature of the project Our project consisted of a moving tank which required many moving components This brought about the need for mechanical engineering concepts Motors and gearing systems were used in order to move the tank in a controlled manor Also a sonar sensor was used which used the physics concept of sound waves The project also had a variety of electrical and computer engineering concepts It required power systems embedded programming motor controls and general circuit design Summary of how realistic design constraints were incorporated into the project where appropriate include economic environmental ethical health amp safety social and political constraints as well as considerations related to sustainability and manufacturability The project did contain some realistic design constraints As the tank was battery powered the engineer must be partly responsible for trying to ensure that the battery was either environmentally sound or disposed of in a proper manor As a toy tank the engineer of a commercial product like this would have to make sure that it is safe for children in the designated age group and for younger children who may stumble upon the toy The product should be reliable to
49. omotive Comm Namit Prasad CmpE Embedded Software May 2003 Project Description Provide a brief one or two page technical description of the design project as outlined below a Summary of the project including customer purpose specifications and a summary of the approach The system is a handheld automotive diagnostic device The system will be capable of communicating with all automobiles made after 1996 which adhere to the SAE 1979 OBD II standard for diagnostics communications The user will interface with the device using a menu system displayed on an LCD which will be navigated using a 16 button keypad The system will have access to all the diagnostics that SAE 1979 provides for and will provide a method for periodic logging and ultimately dumping diagnostic information from several different diagnostics onto a compact flash memory It is meant for car owners automobile technicians and performance technicians for reading and recording the car sensor data which would eventually save costs and effort in identifying engine problems b Description of how the project built upon the knowledge and skills acquired in earlier ECE coursework The project built upon almost every class we attended here at Purdue Brian Dunn relied heavily on ECE445 modern filter design in which he learned about building circuits Jason Ridenour has a great deal of work experience in ECE291 292 and 393 where he worked for United Technologies Electr
50. onic Controls and Thompson Consumer Electronics While in the class he learned about printed circuit boards and using layout Also in his time working A15 Senior Design Report ECE 477 Spring 2003 c d as a COOP Jason learned about being a leader and how to cultivate a successful engineering team For the software Brian Thrall used information such as basic C programming skills learned in ECE264 as well as more advanced data structure skills learned in ECE368 When interfacing with the micro controller s on board peripherals Brian utilized his time in ECE362 and even used Dr Meyer s lectures from time to time Brian also used his knowledge of micro processors gained from ECE495A micro processor design to interface with the microcontroller also Namit called upon knowledge imparted in EE 264 Advanced C Programming and EE 362 Microprocessor Systems and Interfacing We all drew upon COM114 in preparation for and in giving our design reviews Description of what new technical knowledge and skills if any were acquired in doing the project Brian Thrall learned how to use the cad tools Layout and Capture He also acquired his first experiences with a soldering iron Never before had Brian Thrall relied on an oscilloscope for debugging his software and has become quite proficient Brian Thrall learned all about Atmel micro processors and their on board peripherals He also spent a great deal of time learning how to read ISO and
51. reliminary Project Proposal Due Week 3 Jan 27 Jan31 Research Parts e Create Block Diagram Week 4 Feb 3 Feb 7 Final Project Proposal Due e Draw Schematic Week 5 Feb 10 Feb 14 Construct Prototype e Begin Software Development e Create Bill of Materials Week 6 Feb 17 Feb 21 e Begin Ordering Sampling Parts Schematic and Parts List Due Week 7 Feb 24 Feb 28 e Prepare for Design Review Week 8 Mar 3 Mar 7 Design Reviews Week 10 Mar24 Mar28 Continue Software Development e Populate Circuit Board Week 11 Mar 31 Apr 4 Week 12 Apr 7 Apr 11 Firmware Listing Due Week 13 Apr 14 Apr 18 e Debug Hardware on Printed Circuit Board e Hardware Software Integration and Testing Week 14 Apr21 Apr25 l Write Report and Prepare Presentation Week 15 Apr 28 May 2 Project Demonstrations and Final Presentations Week 16 May 5 May 9 Archive CD Peer Review Final Report and Senior Design Report due May 7 at 5 00 PM zi Senior Design Report ECE 477 Spring 2003 Outcome Assessment In order to successfully fulfill the course requirements and receive a passing grade each student is expected to demonstrate the following outcomes i an ability to apply knowledge obtained in earlier coursework and to obtain new knowledge necessary to design and test a microcontroller based digital system 1 2 3 4 5 a b c e T j k ii an understanding of the engineering design process 4 6 7 b c e f h iii a
52. respectively secure Device communication must be authenticated with a pass key and transmission and acceptance of each individual and unique bluetooth address Major advantages for utilization of Bluetooth technology were discovered using the bluetooth specification located on the Bluetooth Sig website In an ever increasing wireless world customers are clamoring for way to make things even more wire free A demand to have audio products become wireless was a major motivating factor behind the design of the Blue talk system Additionally the automotive industry is always seeking to make systems that are more easily customized and tailored to customer s demands The Bluetalk system could be come the standard base system that enables unlimited customization The Bluetalk system is based upon Ericsson s ROK 100 007 Bluetooth transceiver chipset In essence the system was built around establishing a Bluetooth connection Each microcontroller was selected to interface to the ROK based upon required data rates A27 Senior Design Report ECE 477 Spring 2003 b c d e Description of how the project built upon the knowledge and skills acquired in earlier ECE coursework Senior design ECE477 has greatly utilized the material learned in classes studied earlier in the ECE curriculum First senior design draws on all the basic material covered in ECE270 For example skills such as reading and interpreting a data sheet using
53. rogress on the design project Each team member will be expected to post a completed weekly progress report on their team s project web site in advance of these meetings E Senior Design Report ECE 477 Spring 2003 Group Account and Team Webpage Each team will be assigned an ECN group account to use as a repository for all their project documentation and for hosting a password protected team web page The team web page should contain datasheets for all components utilized the schematic board layout software listings interim reports presentation slides etc It should also contain the individual lab notebooks for each team member as well as the progress reports prepared in advance of the weekly progress briefings for each team member At the end of the semester each team must submit a CD ROM containing the complete image of the webpage Homework Several homeworks will be assigned related to key stages of the design project Some of the assignments will be completed as a team 1 3 12 14 some will be completed individually 2 13 and some will be completed by a selected team member one from the set 5 7 10 and one from the set 4 8 9 11 Preliminary Design Project Proposal 5 OrCAD Exercise 3 Final Design Project Proposal 4 Design Constraint Analysis and Component Selection Rationale Parts List 5 Packaging Specifications and Design 6 Schematic and Hardware Design Narrative Theory of Operation 7 Board Layout
54. roject Description Provide a brief one or two page technical description of the design project as outlined below a Summary of the project including customer purpose specifications and a summary of the approach Our project was to design a model train system using RF communications Our product is unique by providing a bi directional communications system and a graphical interface to control the trains Our trains are also capable of collision detection and taking appropriate measures to avoid such collisions A checkpoint calibration system was added to provide accurate location feedback to the graphical display We took existing HO scale model trains and adding a PCB with microcontroller interfaced to RF transmitters as well as the train motor and collisions and location sensors Our product was designed with model train enthusiasts in mind b Description of how the project built upon the knowledge and skills acquired in earlier ECE coursework The use of microcontroller programming and interfacing learned from EE362 as well as use of our C programming skills were widely used in this project General circuit design skills were utilized as learned in the general EE200 level classes Debugging was a major aspect which we used and was learned every step of the way especially in EE495 We ran into interference from EM emissions of the DC motor in our signal wires which was taught in our EE311 class Basic networking and data transmission
55. rovide them with 24 hour access This facility is equipped with expensive state of the art instrumentation students are expected to treat the equipment and furnishings with respect There will be a zero tolerance policy for abuse misuse of this lab anyone who does so will be unceremoniously dropped from the course receive a failing grade and be prohibited from re registering for the course Theft will be prosecuted Design Project Of utmost importance in the real world is the ability to document and present technical information in a clear organized succinct and well illustrated fashion In microprocessor based designs the ability to integrate hardware and software is a fundamental skill that should be possessed by all Computer Engineering graduates The design project formal written report and videotaped presentation will give each student in this course the opportunity to develop these skills Students will work on their design in teams of four Detailed project specifications are provided on page 4 of this document Lab Notebook Developing good design documentation skills is an important part of this course A significant part of your grade 10 will be based on the individual lab notebook you maintain throughout the design and development process Weekly Meetings During a scheduled 20 minute portion of the weekly lab period for this course 8 00 10 00 AM on Wednesdays each team will meet with a course staff member to discuss p
56. s for running our wheels 8 We learned a rationale for selecting various parts for the design especially in choosing a micro controller or a camera or servos or an IR sensor that exactly fit the design criteria 9 Overall we learned how to design and implement a full scale project ph Description of how the engineering design process was incorporated into the project The design process certainly played an important role helping us pace our project well over the course of the semester The time given to us to pick the necessary parts for the design helped us do a rational analysis of what we needed and what we did not The idea of top down specification helped us to layout our success criteria well and helped us set our goals for the later parts of the semester Using the idea of bottom up implementation we prototyped various parts of the design individually and then we went on interfacing them with each other This helped us a lot in debugging The initial assignments on packaging gave us a rough idea regarding what the final product would look like This gave us a goal for designing the look of the final product Description of the multidisciplinary nature of the project Our design included knowledge and applications from many disciplines Digital design was the largest design discipline used There was also some design work involving physics law and ethics The chassis of the robot demanded that the center of gravity must be low
57. s learn and grow as professionals LAB SAzexcellent A good U average D marginal SD poor Quality of lab facility space room furnishings SA A U D SD SA A U D SD Availability of lab facility SA A U D SD Quality of lab equipment SA A U D SD Maintenance of lab equipment SA A U D SD Adequacy of lab space and equipment for current enrollment SA A U D SD Overall would rate this lab as SA A U D SD T A SA excellent A good U average D marginal SD poor Qualifications of T A SA A U D SD Effort put forth by T A SA AUD SD Quality of assistance provided SA A U D SD Rapport with students SA A U D SD Availability during scheduled office hours SA A U D SD Overall would rate this T A as SA A U D SD UNIVERSITY CORE Overall would rate this instructor as Excellent Good Fair Poor Very Poor Overall would rate this course as Excellent Good Fair Poor Very Poor C 1 Appendix D Course Assessment Report Senior Design Report ECE 477 Spring 2003 ECE Course Assessment Report Course ECE 477 Submitted by D G Meyer Term Spring 2003 Course PIC D G Meyer 1 Were all course outcomes addressed during the administration of the course If not why not and what actions do you recommend to remedy this problem in future offerings of this course The following outcomes must be demonstrated to receive a passing grad
58. score of 60 will be required to establish basic competency Demonstration of Outcome v will be based on the Design Review the Final Presentation and the Final Report A minimum score of 60 on the Design Review and a minimum score of 60 on the Final Report and a minimum score of 60 on the Final Presentation will be required to establish basic competency Students who fail to satisfy all outcomes but who are otherwise above the passing threshold based on their NWP will be given a grade of E conditional failure The grade of E may subsequently be improved to a grade of D upon successful satisfaction of all outcome deficiencies If outcome deficiencies are not satisfied within one week from the receipt of final course grades the grade of E will revert to a grade of F Senior Design Report ECE 477 Spring 2003 Purdue ECE Senior Design Semester Report Semester Year Spring 2003 Course Number and Title ECE 477 Digital Systems Senior Design Project Team Name Group 1 Advisors Prof Meyer and Prof Talavage Project Title Autonomous Robot Senior Design Students Maior Area s of Expertise Expected J Utilized in Project Graduation Date Derick Winston Controls Digital and December 2003 Analog Circuits Matt Seeds EE Controls Digital and May 2003 Analog Circuits Software Debugging Robert Gorgol CmpE C Programming HTML May 2003 Tarun Shivlani EE Controls Ana
59. se The approach that we used that allowed this device to be inexpensive was to stream music from a PC over an existing wireless network such that we minimize the amount of expensive memory on the device b Description of how the project built upon the knowledge and skills acquired in earlier ECE coursework This project built heavily upon ECE362 Microprocessor Systems Our design was microprocessor centric and required prior knowledge of C programming as well as an understanding of the logistics involved in interfacing It was also heavily involved in content such as networking and TCP IP programming Digital logic was a necessity in order to complete this project Some aspects of the design even required high and low frequency filtering knowledge Concepts from ECEA95R Network Programming ECE364 Software Tools ECE368 Data Structures ECE495A Computer Architecture ECE469 Operating Systems etc were also used at varied times in the project c Description of what new technical knowledge and skills if any were acquired in doing the project We each learned very valuable skills such as microcontroller selection and justification as well as other component selection We each learned a great deal about creating schematics A13 Senior Design Report ECE 477 Spring 2003 d e f and layouts in order to fabricate a printed circuit board The most important experience we all took from this course was first hand know
60. skills were used as well as CRC implementations A23 Senior Design Report ECE 477 Spring 2003 c d e f Description of what new technical knowledge and skills if any were acquired in doing the project Several things were learned in the process of the project such as schematic captures and layout using Orcad IR detection usage and interfacing to a microcontroller We learned that a simple UART can be used for transmitting data over RF We also became familiar with basic soldering techniques Hands on debugging experience with real circuits not just programs or specifically designed labs was also useful Description of how the engineering design process was incorporated into the project The engineering design process was important in all steps of the project First we had to design a project and come up with realistic goals Next we had to identify what kinds of modifications were necessary to the train without destroying it Then we acquired the appropriate parts and tested them separately before designing a circuit board and finally soldering it together Description of the multidisciplinary nature of the project The project included both Computer Engineers and an Electrical Engineer but it was mainly an ECE project Some mechanical engineering was required to come up with ways to meet space requirements but for the most part the project consisted of designing a circuit board interfacing hardware t
61. stic design constraints were incorporated into the project where appropriate include economic environmental ethical health amp safety social and political constraints as well as considerations related to sustainability and manufacturability General background research was performed to asses the environmental impact that our device could cause It was determined that processes minimizing toxic contamination would be used for the both construction and population of our PCB At the end of the product s lifetime a reclamation and recycling program will retrieve and process the discarded products This effort will minimize the waste and potential pollution that our devices could cause With regard to health and safety our product operates at a very low voltage Really there is no danger of electrical shock The most important consideration that would need to be accounted would occur if our device was implemented in a vehicle The cognitive load of operating our device while driving would need to be assessed Most likely we will need to implement methods of locking out system functionality while the vehicle is in motion A29 Appendix B Proposed Application Form Senior Design Report ECE 477 Spring 2003 ECE 477 Application Information Form Name Student ID m Semester you plan to take ECE 477 Expected Graduation Date Taking ECE 477 to fulfill ECE Senior Design Requirement
62. ten in C and utilized skills developed in EE 264 Advanced C Programming such as file I O in the maze simulator and the use of pointers as function parameters zAT Senior Design Report ECE 477 Spring 2003 c d e f Description of what new technical knowledge and skills if any were acquired in doing the project The project provided allowed us to learn the process of designing an embedded system from the ground up We developed new technical abilities through the use of new tools For example the project required that all the team members learn ORCAD Capture and Layout At the start of the semester none of us had used any of these tools New techniques for troubleshooting and soldering were also acquired An understanding of the professional aspects of designing a safe and reliable product and bringing it to market were acquired in addition to new technical skills Description of how the engineering design process was incorporated into the project The project idea was selected and similar types of robots were studied to see what kinds of features would be good for our robot and what we thought we could improve Parts were researched to see what would be the best to perform certain tasks such as wall detection and motor control The parts were ordered and tested individually to verify their ability to interface with the microcontroller and function properly Individual circuits were verified through testing and an i
63. the project built upon the knowledge and skills acquired in earlier ECE coursework The project required the combination of the knowledge gained throughout our undergraduate years The design was heavily based on digital systems and most important component of our project was the interfacing of the different components with the microcontroller This required the extensive use of knowledge and skills we learnt in ECE270 362 Among others we also used this knowledge when we worked with hexadecimal values built a 3 8 decoder on a PALCEI6VS8 used DCNM to decide whether connections between components in our circuit would work or did we need to boost the output through a level transceiver read data sheets and timing diagram The microcontroller was programmed in C and required the use of software skills and data structures that we had learnt in ECE264 368 e g efficient use of memory using malloc and free functions usage of linked lists for our list of possible moves The power circuit requires knowledge of ohms law and circuitry using capacitors and diodes The knowledge gained in ECE201 255 was used in this part of the project Description of what new technical knowledge and skills if any were acquired in doing the project We acquired new knowledge through the different approaches we used while getting our components to work Because of the use of so many contact sensors in our design we learnt more efficient ways of reading these inputs b
64. ts of time between that class and ECE 477 The main technical thing learned was how to create schematics and layouts in Orcad which was a major part of the design process A lot of little new things were learned on the circuit side which included how to design power circuitry what wattage resistors were needed in certain applications and the different voltage capacitors In addition to all these skills there were more general skills that were acquired such as how to use the knowledge used in classes to solve real world problems and how to combine topics used in different parts of the curriculum correctly Description of how the engineering design process was incorporated into the project A very strict engineering design process was used during the creation of The Boilermixer It started with constructing a team made of members who were reliable and who worked well together At the beginning stages of the process each team member was assigned a role to play throughout the semester This helped to keep the team organized and establish responsibilities Throughout the semester weekly meetings took place among the team members and at these weekly meetings the most current issues concerning the project were discussed All tasks at hand were prioritized in order to make sure everyone was on the same page and the most important tasks were completed first Through the use of an excellent online documentation system created by Jim and Ed we were able to f
65. ully document all work that was done individually and it was very simple for any member to quickly see what other members had accomplished When designing the hardware we used a top down specification bottom up implementation procedure A plan was followed in which each part of the circuitry was fully tested and prototyped before finalizing it into the overall design In this way it was ensured that the circuitry would work After the PCB was made a process was followed in that each part of the circuit that was added to the board was tested before adding anything else This proved to be very useful because as we went along there were some resistors that were damaged during soldering but they were found right away because of our bottom up testing Through these design processes the hardware worked very quickly without any major problems We were able to incorporate the software very seamlessly and obtain great results from the functionality of The Boilermixer Description of the multidisciplinary nature of the project This project required that all team members have some areas of specialization and that they make full use of those skills Because each team member did have important unique multidisciplinary skills our project became a great success Skills were utilized that involved knowledge in areas such as fluid dynamics woodworking soldering and systems testing Of course skills were also utilized from our computer and electrical engi
66. view from a top down bottom up perspective First present a block diagram of your design and explain the functional units Then drop to the bottom level and explain your design at a schematic level Be prepared to justify every piece of the design a perfectly valid answer however is applying the recommended circuit from an application note If you do use a circuit from an application note have the documentation on hand and be able to produce it Your grade for the design review will not be based on the number of errors identified in your design The best engineers make mistakes and the purpose of the design review is to catch them rather than spend hours of debugging later to find them The design review will be graded primarily on how well the group understands their design and the professionalism with which they present it To facilitate the design review process the class will be split into subgroups that will meet at individually scheduled times Both the presenters and the assigned reviewers will be evaluated Senior Design Report Milestones ECE 477 Spring 2003 Each group is responsible for setting and adhering to their own schedule however there are several important milestones as listed in the table below Always expect the unexpected and allow for some buffer in your schedule Budget your time Week 1 Jan 13 Jan 17 Formulate Group and Project Ideas Week 2 Jan 20 Jan 24 P
67. y learning about how a key pad works and incorporated it in our design instead of reading each value on by one We learnt about different motors like the servo motor stepper motor when we tried to incorporate the tilt mechanism in our game board We learnt and used the OrCad software to create schematics and the PCB layout Description of how the engineering design process was incorporated into the project Once we had decided on the idea of Digi Y ALi we had to start finding components that suited our needs We had to try out different approaches and see the ones that fit best with our design and within our constraints Also a side by side prototyping of the parts was done to see if the part worked as well as we had expected or if improvements were to be made Once we had everything prototyped the schematic and layout of the design was created The components were populated on the PCB and debugged Description of the multidisciplinary nature of the project The use of microcontrollers LCD screens power supply all required knowledge of electronics The plastic game board and packaging required mechanical labor The use of the motor to tilt the board required understanding of physics gravity and torque A9 Senior Design Report ECE 477 Spring 2003 f Summary of how realistic design constraints were incorporated into the project where appropriate include economic environmental ethical health amp safety social and political

Senior Design Report for ECE 477 – Spring 2003

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Senior Design Report for ECE 477 – Spring 2003