MOD-IO development board user`s manual
Contents
1. K BC817 5 ic green E 03 T Es D P Qours 3 1 hs aS R40 au o2 Qoursa R38 T3 K BCB17 lo k gt green 02 P Qourza s REL2 io Dovur2 2 1K Oour2 1 R41 T2 IK BC817 2 k green gt Ed o1 E Qouri 3 P od Ma X RELL nai dey R46 A 1K S Oom Qouria R44 n HT BC817 5 k https www olimex com Gl DB104 SMD c2 VRIGSV luF 50v 220uF 35V 3 E als 5V VR2 3 3V O s VN u LM1117MPX ADJ YDJ 1134 INV ui N OUT 100uH SW68 E30YDE ADJIGND NC PWR LED R1 a 5 R7 red GND Re M D1 the R4 c6 33V 150k iN5819 sma 5 240R 1 a BD9001FS0 8 00 110k R3 ez n JC R6 ce 55 RB i 3 100 ee 1k aa amp 8 n 11 n z 5 O GND R5 Fmax 50kHz R19 epa AN1 2K 100R i R20 a NA 33nF DOR E 10 33v eis R21 T hao7a exggy2 5mm gio ANDA TB2 3 5mm m ET ui 8 E Ge O 1 4 ADC6 PAG w in ADCS PAS GND 33V ADCA PAA BIE ge cu P x eae ES LI R23 mt id O avaise ADC3 PAa a ee pa AN3 ADC2 PA2 in 100R j i ADCI PAL H R24 c22 4 3 ADCO PAD d 5 RST NA 33nF d 7 sck P87 9 MISO PB6 MOSI PBS 59 84 T AIN1 PB3 aa AN4 AINO INT2 PB2 1098 23 T0 PB0 R26 33V 33v San e 25 Tosc2 Pc7 O 25 TOSCi PC6 i 3 i TCK 24 Peston ud PERSE 3 PCa TDO 33v d 5 PC3 TMS 17 O F PCA TCK bi 5 0 38 PCO SCL Mi 15 Oc2 D7 n 15 cP eDs 6 red 14 OClA PDS s cle cu che LED4 yg 13 OC18 PD2. MOD IO development board user s manual lead free All boards produced by Olimex are ROHS compliant Rev C March 2013 Copyright c 2011 OLIMEX Ltd All rights reserved Page 1 INTRODUCTION MOD IO is a small but powerful development board who let you control 4 optoisolated input and 4 relay outputs with this features is possible to turn on and off almost any electronic device at home The board has UEXT_FEMALE connector which allows you to communicate with a PC and UEXT_MALE connector where you can connect other Olimex board with UEXT The MOD IO project is fully open software and open hardware The customer has full access to the documentation of the board including schematics and board design The main idea of MOD IO chain connection is to extend isolated relay outputs isolated digit inputs non isolated analog inputs non isolated digit inputs outputs using UEXT male female connector So the MCU interfaces I2C SPI UART from all chain boards are connected in parallel Note that if you want to connect more than 1 MOD IO board then on the interface bus I2C or UART or SPI has to have only one Master device The other devices have to be Slaves For example if UART interface is used the master will send a string with Slave address and command All Slaves will listen UART bus through RXD line while all Slave TXD lines are inputs So when the address is recognized from the Slave device the one will answer as i
3. R33 are now R3 9k and R28 R30 R32 R34 are now R47k Pin Signal IN1 connected to TO PBO signal 14 IN2 connected to T1 PB1 signal I3 IN2 connected to AINO INT2 PB2 signal I2 IN4 connected to INT1 PD3 signal I1 OUT1 OUT2 OUT3 OUT4 OUT connected to ADC3 PA3 signal name O4 OUT2 connected to ADC2 PA2 signal name O3 OUTS connected to ADC1 PA1 signal name O2 OUTA connected to ADCO PAO signal name O1 AIN 1 Please note that the analog inputs by default are as big as the input levels but you might change this just calculate the needed resistors R19 R20 and R21 R22 Pin Signal Name Connected to 1 3 3V VCC 2 AN1 ADC7 PA7 3 AN2 ADC6 PA6 Page 14 AIN 2 Please note that the analog inputs by default are as big as the input levels but you might change this Just calculate and mount replace the needed resistors R23 R24 and R25 R26 Pin Signal Name Connected to 1 AN3 ADC5 PA5 2 AN4 ADC4 PA4 3 AGND Analog GND Signal Name Page 15 JUMPER DESCRIPTION There are no jumpers on this board INPUT OUTPUT User button with name BUT connected to Atmegal6L pin 11 INTO PD2 Reset button with name RST connected to Atmegal6L pin 4 RESET Status LED yellow with name STAT connected via R11 330 Ohm to Atmegal6l pin 43 AIN1 PB3 Status LED red with name LED1 visualize in
4. by OLIMEX in good faith However all warranties implied or expressed including but not limited to implied warranties of merchantability or fitness for purpose are excluded This document is intended only to assist the reader in the use of the product OLIMEX Ltd shall not be liable for any loss or damage arising from the use of any information in this document or any error or omission in such information or any incorrect use of the product This evaluation board kit is intended for use for engineering development demonstration or evaluation purposes only and is not considered by OLIMEX to be a finished end product fit for general consumer use Persons handling the product must have electronics training and observe good engineering practice standards As such the goods being provided are not intended to be complete in terms of required design marketing and or manufacturing related protective considerations including product safety and environmental measures typically found in end products that incorporate such semiconductor components or circuit boards Olimex currently deals with a variety of customers for products and therefore our arrangement with the user is not exclusive Olimex assumes no liability for applications assistance customer product design software performance or infringement of patents or services described herein THERE IS NO WARRANTY FOR THE DESIGN MATERIALS AND THE COMPONENTS USED TO CREATE MOD IO THEY ARE CONSIDERED SU
5. t E i H H o H uL 1 1 Ww 1 ow i 1 i E Im H i oa a z u 2 Lu 1 l 1 Lu T 1 i a 1 N a E D 8 d j i 3 T H H 1 1 E gt amp T l a i a a 1 16 zi 2 i jg a a i i lt lt i i om oc Oo A Z m en 1 i t E E i 5E 5a O Zo E k i H 5 i T 20 20 2g O i a a EG ca 55 c 55 5 a 2 25 i i bi PS i i i i d 1 o gt Page 7 MEMORY MAP Program Memory Map 0000 1FFF Page 8 Data Memory Map Register File Data Address Space Registers 045F Page 9 SCHEMATIC 1 41 MOD IO rev A1 ol 02 03 04 green Ed 04 Pl oura 3 ES R37 oum ak Qouraa R35
6. 4 18 27 R28 P ba a 1 aon kn J mur 22 NTDPD3 oon 00 oon s n 39 m 148 Eu 4 K 2 10 01 pl d a R D PDo 5 HIIABIZSMD 1 2 ATMEGAILGL red LED3 ys or 4 2 m 1 a e R20 c3 3 9k EX j wk R 47K 148 SM ney HMABIZSSMD L 3 B 33v 33v 33v 33v 33V 33v red LED2 y4 ines R31 J ince R32 E 3 Ca 39k a ak i n R14 m5 R16 m7 18 Ed NA 4 7K NA 4 7K 4 7K d E n UEXT MALE UEXT_FEMALE 4 red 2 2 us LEDI u3 m E 4 TXD 3 4 TXD Ex eo au gunn homed 8x2 5mm SDA SDA mox 9 SC 148 SM x H11A817SMD is PRSE This schematic is released under the Creative Commons Attribution Share Alike 3 0 United States License OLIMEX LTD Plovdiv Bulgaria 2013 BOARD LAYOUT RST button euet Zuan 14 Sel zage t031 L s enb e oz je 1 a 9 3 pey ozas 112912 37 1 PU ah aa STIED wy m oi MT Es UEXT FEMALE s yr c Ese e UEXT MALE POWER SUPPLY CIRCUIT MOD IO is typically power supplied with 8 30V DC Power consumption when all relays are working is about 310 mA CLOCK CIRCUIT Crystal Quartz 8 MHz connected to Atmegal16l pin 7 XTAL2 and pin 8 XTAL1 Crystal Quartz 32 768kHz connected to Atmegal6L pin 25 TOSC1 PC6 and pin 26 TOSC2 PC7 RESET CIRCUIT MOD IO reset circuit includes Reset scheme MCP130T U2 AVRISP connector
7. ITABLE ONLY FOR MOD IO Page 20 For product support hardware information and error reports mail to support olimex com Note that we are primarily a hardware company and our software support is limited Please consider reading the paragraph below about the warranty of Olimex products Warranty and returns Our boards have lifetime warranty against manufacturing defects and components During development work it is not unlikely that you can burn your programmer or development board This is normal we also do development work and we have damaged A LOT of programmers and boards during our daily job so we know how it works If our board programmer has worked fine then stopped please check if you didn t apply over voltage by mistake or shorted something in your target board where the programmer was connected etc Sometimes boards might get damaged by ESD shock voltage or if you spill coffee on them during your work when they are powered Please note that warranty do not cover problems caused by unproper use shorts over voltages ESD shock etc If the board has warranty label it should be not broken Broken labels void the warranty same applies for boards modified by the customer for instance soldering additional components or removing components such boards will be not be a subject of our warranty If you are positive that the problem is due to manufacturing defect or component you can return the board back to us for inspection Wh
8. Package Only 2 Differential Channels with Programmable Gain at 1x 10x or 200x Byte oriented Two wire Serial Interface Programmable Serial USART Master Slave SPI Serial Interface Programmable Watchdog Timer with Separate On chip Oscillator On chip Analog Comparator Special Microcontroller Features Power on Reset and Programmable Brown out Detection Internal Calibrated RC Oscillator External and Internal Interrupt Sources Six Sleep Modes Idle ADC Noise Reduction Power save Power down Standby and Extended Standby I O and Packages 32 Programmable I O Lines Operating Voltages 2 7 5 5V Speed Grades 0 8MHz Power Consumption 1 MHz 3V and 25 C Active 1 1 mA Page 5 dle Mode 0 35 mA Power down Mode lt 1 pA Page 6 PCO PC7 PAO PA7 BLOCK DIAGRAM f i 1 i a H oa e 0 H o w amp Zak m fis Q I arca Q a m E a it Im i o 30 i E T D za In 5 a 3 i 5 i o a i 5 d d g gt 8 T 6 6 T a 5 S dg amp 2 E E ag RZ gt e E m o S 5 os cz amp S O a a BE 2F ui B 9 a i xt Oy LE ul i 2 Z 1 i i i i 1 I l d ul Pal ui H Q j 20 ow ag w o d SE 5g go ilg zi 9 g i w lt tu i H Za ag 7 e x w
9. ailed INTRODUCTION and MECHANICAL DIMENSIONS Rev C edited March 2013 added new schematic more information about AIN and IN inputs IN input voltage adjusted updated disclaimer and product support Page 19 Disclaimer 2013 Olimex Ltd Olimex logo and combinations thereof are registered trademarks of Olimex Ltd Other product names may be trademarks of others and the rights belong to their respective owners The information in this document is provided in connection with Olimex products No license express or implied or otherwise to any intellectual property right is granted by this document or in connection with the sale of Olimex products The Hardware project is released under the Creative Commons Attribution Share Alike 3 0 United States License You may reproduce it for both your own personal use and for commercial use You will have to provide a link to the original creator of the project https www olimex com on any documentation or website You may also modify the files but you must then release them as well under the same terms Credit can be attributed through a link to the creator website https www olimex com The software is released under GPL It is possible that the pictures in this manual differ from the latest revision of the board The product described in this document is subject to continuous development and improvements All particulars of the product and its use contained in this document are given
10. d by the IDE you are going to use Software AVR C Compiler PROCESSOR FEATURES MOD IO use 8 bit AVR Microcontroller with 16K Bytes In System Programmable Flash with these features High performance Low power AVR 8 bit Microcontroller Advanced RISC Architecture 131 Powerful Instructions Most Single clock Cycle Execution 32 x 8 General Purpose Working Registers Fully Static Operation Up to 16 MIPS Throughput at 16 MHz On chip 2 cycle Multiplier High Endurance Non volatile Memory segments 16K Bytes of In System Self programmable Flash program memory 512 Bytes EEPROM 1K Byte Internal SRAM Write Erase Cycles 10 000 Flash 100 000 EEPROM Data retention 20 years at 85 C 100 years at 25 C Optional Boot Code Section with Independent Lock Bits In System Programming by On chip Boot Program True Read While Write Operation Page 4 Programming Lock for Software Security JTAG IEEE std 1149 1 Compliant Interface Boundary scan Capabilities According to the JTAG Standard Extensive On chip Debug Support Programming of Flash EEPROM Fuses and Lock Bits through the JTAG Interface Peripheral Features Two 8 bit Timer Counters with Separate Prescalers and Compare Modes Ore 16 bit Timer Counter with Separate Prescaler Compare Mode and Capture Mode Real Time Counter with Separate Oscillator Four PWM Channels 8channel 10 bit ADC 8 Single ended Channels 7 Differential Channels in TOFP
11. en we receive the board we will check and if the problem is caused due to our fault and we will repair replace the faulty hardware free of charge otherwise we can quote price of the repair Note that all shippings back and forth have to be covered by the customer Before you ship anything back you need to ask for RMA When you ship back please attach to it your shipping address phone e mail RMA and brief description of the problem All boards should be sent back in antistatic package and well packed to prevent damages during the transport Page 21
12. pin 5 JTAG connector pin 6 Atmegal6L pin 4 RESET R9 100Ohm R10 10k C10 100nF and RST button Page 11 CONNECTOR DESCRIPTIONS AVRISP Pin Signal Name ra MOSI 3 3V NC o 90 Aly 5 5 A Pin Signal Name j TCK GND TDO 3 3V TMS RST 3 3V NC AIQI N A e EXT Pin Signal Name PD7 PD6 PD5 PD4 3 3V HD ole wn GND Page 12 12345 6 UEXT MALE More info available here https www olimex com Products Modules UEXT UEXT FEMALE Pin Signal Name 1 NC GND TXD SCL SDA MISO MOSI Oo 00d DI A mo rnm SCK A SS Pin Signal Name NC GND TXD SCL SDA MISO MOSI o ooINIAJAaA AIIN e SCK A SS Page 13 13579 IN1 IN2 IN3 INA Please note that the opto isolated inputs IN1 IN2 IN3 IN4 in earlier revisions were able to receive signals in the 3V to 6V range R27 R29 R31 R33 were 330R and R28 R30 R32 R34 were R4 7k We have now adjusted the values of the resistors in that part of the schematic in latest revisions to allow higher voltage input in the 3 3V 24 0V range R27 R29 R31
13. put IN1 state Status LED red with name LED2 visualize input IN2 state Status LED red with name LED3 visualize input IN3 state Status LED red with name LED4 visualize input IN4 state Status LED green with name O1 visualize relay REL1 state Status LED green with name O2 visualize relay REL2 state Status LED green with name O3 visualize relay REL3 state Status LED green with name O4 visualize relay RELA state Power on LED red with name PWR LED shows that 3 3V voltage is applied to the board Page 16 MECHANICAL DIMENSIONS uw Qyee uw uw 89 uw uw 686 68 uu Pa oD wu Bare 24 28 mm et ft B em x Page 17 AVAILABLE DEMO SOFTWARE There are two firmware available for MOD IO one is for RS232 control and the other is for I2C control They might be found at the web page of MOD IO Direct download links MOD IO DC newer firmware C source and hex MOD IO RS222 older firmware C source and hex Page 18 ORDER CODE Revision history MOD IO assembled and tested How to order You can order directly from our web shop or from any of our distributors The list of distributors might be found here https www olimex com Distributors Check our web https www olimex com for more info Board s revision Rev A create November 2009 Manual s revision Rev B edited September 2011 added more det
14. t will force TXD pin like output but immediately after command answer is finished the Slave TXD pin must be initialized like input The same principle can be used for other interfaces SPI or I2C BOARD FEATURES Microcontroller Atmega16L AVRISP connector JT AG connector EXT connector UEXT MALE UEXT FEMALE Clock circuit User button Reset circuit and button Power Jack Power on led Nine status leds Four optocoupler isolated inputs Page 2 Four Relays PCB FR 4 1 5 mm 0 062 solder mask silkscreen component print Dimensions 100x80 mm 3 94x3 15 Page 3 ELECTROSTATIC WARNING The MOD IO board is shipped in protective anti static packaging The board must not be subject to high electrostatic potentials General practice for working with static sensitive devices should be applied when working with this board BOARD USE REQUIREMENTS Cables The cable you will need depends on the programmer debugger you use If you use AVR PG1 or AVR JTAG you will need RS232 cable if you use AVR PG2 you will need LPT cable if you use AVR USB JTAG AVR ISP500 AVR ISP500 TINY AVR ISP500 ISO AVR ISP MK2 you will need 1 8 meter A B USB cable Hardware One of Olimex programmers debuggers AVR PG1 AVR PG2 AVR ISP500 AVR ISP500 TINY AVR ISP500 ISO AVR JTAG AVR USB JTAG AVR ISP MK2 or other compatible programming debugging tool Make sure to check if the above programmer debugger is supporte
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