User's Guide
Contents
1. delaytime 200 void main init while 1 asm clrwat scankey nii DE DP22811_Ver1 0_Page 10 2004 2010 Sure Electronics Inc 2 3 2 DIGIT 7 SEGMENT RED SURE DISPLAY BOARD electronics USER S GUIDE Chapter 5 Mechanical Drawing FIGURE 5 1 MECHANICAL DRAWING 3 80inch 96 50mm 480 09 3 40inch 86 40mm 1 52mm 2 7 4inch 69 70mm 3 20inch 3 60inch 81 30mm 81 40mm 2004 2010 Sure Electronics Inc DE DP22811 Ver1 0 Page 11 2 3 2 DIGIT 7 SEGMENT RED On SURE DISPLAY BOARD ew electronics USER S GUIDE Chapter 6 Contact Us Sure Electronics Co Ltd East zone 3F Building 6 Jingang Technology Innovation Center No 108 Ganjiabian Rd ZIP 210000 Qixia District Nanjing P R China Tel 86 25 68154800 860 Fax 86 25 68154891 832 Website www sure electronics com Email customerservice sure electronics com DE DP22811_Ver1 0_Page 12 O 2004 2010 Sure Electronics Inc2. 2004 2010 Sure Electronics Inc SURE electronics 2 3 2 Digit 7 Segment Red Display Board User s Guide DE DP22811_Ver1 0 2 3 2 DIGIT 7 SEGMENT RED o SURE DISPLAY BOARD amp electronics USER S GUIDE Table of Contents Chapter e TE 1 A 8 a UE en 1 1 2 QUICK Star EE 2 Chapter 2 Hardware Details 3 2 1 7 SEGMENL D cpm 3 2 2 Shift Register Data RN UE 4 2 3 Data Ports Deiinition sica ida 4 2 4 Auxiliary Power Interface enn 5 2 5 Data BUNG EE 5 2 6 Connection IA SON CS ki ka ag R 6 Chapter 3 Electrical Ch racteristies nein 7 Chapter 4 Sample e E 8 4 1 LED Segment Drive Demo Board s SchematiG nee 8 4 2 Howto CoBlnecL E680 niodo ee UE 8 4 3 How to Display Data with PIC16F54 and PICC9 60 Environment 9 Chapter 5 Mechanical Drawing annae nare nenene menens nnane menens nenenenennnnnennnenennens 11 Chapter 6 Contact US eR E 12 2004 2010 Sure Electronics Inc DE DP22811 Ver1 0 Page 2 3 2 Digit 7 Segment Red Display Board NOTES Product Version Ver 1 0 Document Version Ver 1 0 DE DP22811 Ver1 0 Page ii 2004 2010 Sure Electronics Inc e 2 3 2 DIGIT 7 SEGMENT RED On SURE DISPLAY BOARD e electronics USER S GUIDE Chapter 1 Overview 1 1 Overview Thanks for using 7 segment information board series by Sure Electronics This series includes 5 di
3. with 12V power supply via auxiliary power interfaces Make sure the polarity is correct FIGURE 2 6 AUXILIARY POWER INTERFACE ooga UNT Nm PaP En 2 5 Data Buffer 74HC00 chip is used to buffer the clock and DIMM_IN signals since CMOS output signal cannot drive multiple CMOS chips if the cable is too long FIGURE 2 7 DATA BUFFER 2004 2010 Sure Electronics Inc DE DP22811 Ver1 0 Page 5 2 3 2 Digit 7 Segment Red Display Board 5V 6 CLK_OUT FAHCOO SOIC TAHCOO SOIC 1 DIMM OUT FAHCOO SOIC TAHCOO SOIC 2 6 Connection in Series To cascade our signal enhancing board please refer to the specific connection diagram as follows FIGURE 2 7 CONNECTION IN SERIES nn ee on PTEE 00000 38 28 Eum od IES Ea chectromcs t SPA PS DE DP22811 Ver1 0 Page 6 2004 2010 Sure Electronics Inc 9 2 3 2 DIGIT 7 SEGMENT RED On SURE DISPLAY BOARD e electronics USER S GUIDE Chapter 3 Electrical Characteristics e Power supply recommended Input AC100 to AC200 1A 50 to 60HZ Output DC 12V 3 25A e For over 4 panels user must add auxiliary power on the auxiliary power ports or the 10pin communication port could not carry so much current e Maximum clock frequency 1MHz 4 boards connected in series e Suggested Refresh Rate less than 10Hz e Drive Current segment 18mA 3mA 5mA this value may be changed based on the production batch and the dot uses different curren
4. egment LEDs are installed on the board All the segments are common anode The four digits are respectively marked as U3 U4 on the schematics LEDs are driven by DIMM NOT signal from DIMM IN pin via 74HC00 NAND Of course you can also drive the LED and adjust the brightness by applying PWM signal on the DIMM IN pin When the valid data is shifted from 74HC164 and DIMM NOT signal is set to high DIMM IN signal low all the corresponding segments will be illuminated Before change the data displayed by segments turn off the display first and then write new data into 74HC164 chip FIGURE 2 1 7 SEGMENT LEDS Vcc CH COL OI COI NE AOIN CO GO BON A B C D E F G D Uuommuoour D23011 D23011 FIGURE 2 2 DIMM NOT FDN302P SOT 23 R21 i DIMM NOT 2004 2010 Sure Electronics Inc DE DP22811 Ver1 0 Page 3 2 3 2 Digit 7 Segment Red Display Board FIGURE 2 3 DIMM_IN AND DIMM_NOT Elf DI OUT 748 00 501 748 00 5 01 2 2 Shift Register Data Driver FIGURE 2 4 SHIFT REGISTER DATA DRIVER U1 74HC164 SOIC 3 R1 221 AO R2 221 A R3 221 R4 221 R5 221 R6 221 R7 221 R8 102 A7 R10 221 80 R11 221 B R12 221 B2 R13 221 B R14 221 BA R15 221 B5 R16 221 B6 R17 102 87 74HC164 chips are used as shift registers marked as U1 U5 and segments are driven by ULN2003 and 9014 ULN2003 chips Darlington Driver IC are directly connected with LED segments and are marked as U2 U6 A
5. fferent size panels they are 1 5inches 1 8inches 2 3inches and 4inches 7inches character height All those panels are driven by SPI like interface and all work in full static mode They are easy to be interfaced to any Microcontroller They could be widely used in panel meters big clocks and any other information display usage Sure Electronics providing series of such information boards is to reduce your development time and make them standard In this series most boards are 4 digits and static if customer need any special digits and special size ones could contact us with the contact information at the end of this document This document is used to describe how to use 2 3 inches character height panels FIGURE 1 1 OVERVIEW ONERE CET Note All the diagrams in this manual are for reference only 2004 2010 Sure Electronics Inc DE DP22811 Ver1 0 Page 1 2 3 2 Digit 7 Segment Red Display Board 1 2 Quick Start Please connect the info boards and the driver board as follows FIGURE 1 3 CONNECTION SCHEMATIC 80 89 BE 00 rel SE Pod LED ED HE Note 1 Pay attention to the connection of Input and Output 2 Connect the info boards and the demo board before power on DE DP22811 Ver1 0 Page 2 2004 2010 Sure Electronics Inc e 2 3 2 DIGIT 7 SEGMENT RED On SURE DISPLAY BOARD e electronics USER S GUIDE Chapter 2 Hardware Detail 2 1 7 segment LED 2 3 2 digits s
6. ll 74HC164 on the board are connected in series Only CMOS signals are received by these pins All the segments will start to work when clock line data line and correct signal from DIMM IN are correct Characters displayed and their corresponding codes are shown in the following table TABLE 2 1 CHARACTERS DISPLAYED AND THE CORRESPONDIGN CODES 2 3 Data Ports Definition FIGURE 2 5 DATA PORTS DEFINITION DE DP22811 Ver1 0 Page 4 2004 2010 Sure Electronics Inc Hardware Detail There re two IDC sockets which are respectively marked as J1 and J2 J1 is the data input interface and J2 data output interface An info board can work separately when its J1 is connected with J1 of the demo board and is left open When more boards are in series connect J1 of the next board with J2 of the previous board and all the boards can work Up to 4 boards are recommended to be connected in series When over 4 boards are connected in series you must add auxiliary power to provide more current ensuring normal working 2 4 Auxiliary Power Interface There re two auxiliary power interfaces on this board If the power supply used can output higher enough current 10 pin IDC cable is enough If the power supply used output low current and many boards are connected in series it s suggested to use wires to connect the info boards and the driver board via auxiliary power interfaces or the current is not enough to drive these boards Just feed the boards
7. t 7mA 1mA 2mA e Drive Method Fully static e Connection Method 74HC164 in series SPI like interface e Up to 4 boards are suggested to be connected in series e Interface Voltage Level VDD 0 8 VDD 0 5V standard CMOS level If you need TTL CMOS compatible interface in batch please contact us but the quantity should be no less than 100pcs 2004 2010 Sure Electronics Inc DE DP22811 Ver1 0 Page 7 DISPLAY BOARD USER S GUIDE 2 3 2 DIGIT 7 SEGMENT RED Op SURE A electronics Chapter 4 Sample Codes 4 1 LED Segment Drive Demo Board s Schematic FIGURE 4 1 LED SEGMENT DRIVE DEMO BOARD S SCHEMATIC 5V 5V 5V Q 1 18 3 RAS RAO Le OSC1 u MCLR 4 TOCLK OCS1 CLKIN s 5 MCLR Vop OCS2 CLKOUT CO A ci 1 ON CE VDD 3 ICSPDAT RB7 ICSPDAT 5 de itia OSC1 SW 8 RB6 ICSPCLK Ei R5 472 9 5 10 R6 472 DIMM a PIC16F54 SOIC Ge 22P N 22P Ji CON10B SW DIP 4 SWI 1 8 1 5 POWER See Sa 2 CON2 Q J4 CON 6 od O E D 4 2 How to Connect Load FIGURE 4 2 CONNECT LOAD Power Supply from J2 or J3 DC 12V 1A Input LED Segment Driver Demo e 3inch Info Board 10 pin IDE Flat Cable DE DP22811 Ver1 0 Page 8 2004 2010 Sure Electronics Inc 2 3 2 Digit 7 Segment Red Display Board TABLE 4 1 ENCODER POSITION SETTING Output Voltage DIP Switch Settings ON V B o 1 DIP switch only has the 3 ways as shown above to work any other s
8. witching ways are prohibited 2 Users shouldn t change the voltage while LED Segment Drive Demo Board is working It is only allowed to change it before applying the current 4 3 How to Display Data with PIC16F54 and PICC9 60 Compiler Source code is shown below TABLE 4 2 SOURCE CODE include lt pic h gt _ CONFIG RC amp WDTEN amp UNPROTECT define uchar unsigned char define uint unsigned int define DATA RB5 define CLK RB3 define EN RB4 define keydown RB2 const uchar TAB 19 0x06 0x5b 0x4f 0x66 0x6d 0x7d 0x07 0x7f 0x6f 0x3f 0x01 0x02 0x04 0x08 0x 10 0x20 0x40 0xff 0x00 character library uchar n uchar flag_g void delayus uchar i while i void init void TRISA 0 RA2 1 TRISB 0B00000100 CLK 0 OPTION 0B11000111 void sent_data uchar sdata uchar i EN 1 Atum off the display write data to be displayed 2004 2010 Sure Electronics Inc DE DP22811 Ver1 0 Page 9 Sample Codes for i 0 i lt 8 i CLK 0 delayus 5 if sdata amp 0x80 220x80 DATA 1 else DATA 0 sdata sdata 1 CLK 1 delayus 5 CLK 0 EN 0 turn on the display void delaytime uchar uint j 1 gt 011 for j 0 j lt 400 j asm cIrwdt void scankey void uchar i j if keydown 0 delaytime 25 if keydown 0 while keydown 1 asm clrwat N n n 18 for i 0 i lt 19 i for j 0 j lt 16 j sent data TABJ i
Download Pdf Manuals
Related Search