LCD 1/1000 Stopwatch with PIC16F628A microcontroller and LCD Module Epson mod. EA-D16015 PR-1 ©2014 by Valter Narcisi – San Benedetto del Tronto (AP) - ITALY http://www.narcisivalter.it/progetti/cronometro-LCD.html [email protected] VCC C1 0.1u D R7 10k R6 10k R5 10k D R4 10k M1 +V 1N4148 M2 12 Vcc Power Supply 9 Vcc Battery R8 22k D2 + IN 1N4001 + RX* 1k C5 47u - 25V U4 78L05 4 VCC OUT 3 + COM D3 M3 C6 10u - 16V + 10 4,95 Vcc (Only with 12v Power Supply) 11 1N4001 C 1 2 3 ICSP 4 5 14 D1 8 RA5/MCLR RA4 RB4 U1 PIC16F628A RB5 13 RB7 12 RB6 16 RA7 15 RA6 2 RA3 1 RA2 18 RA1 17 RA0 RB2 C RX* only if use a 9V rechargeable battery Stop/ Interm. RB3 Reset 6 VCC RB1 7 T1 10k Contr. 5 C2 RB0/INT 9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Start S3 GND VCC ADJ RS RW EN DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 LED+ (A) LED- (K) R9 15k S2 GND S1 0.1u R2 47 Epson EA-D16015 PR-1 16 24MHz VCC 9 B XTAL 24 MHz Q4 Q5 U2 M74HC4060B1 Q6 Q7 10 Rext Q8 Q9 Q10 Q12 11 Rs Q13 Q14 R3 4M7 C4 47p CV 15-70p Cext GND Reset 8 12 7 5 4 375 kHz 6 14 13 15 1 1 2 2 3 12 VCC C3 LCD LCD Module 16x1 0.1u 1000 Hz 24 R1 VCC Input Output U3 CD4059B EL 23 Q1 BC237 10k B Ka 14 Kb 13 Kc 11 GND J1 J2 J3 J4 J5 J6 J7 J8 J9 J10 J11 J12 J13 J14 J15 J16 3 4 5 6 22 21 20 19 18 17 16 15 10 9 8 7 Author: Valter Narcisi - San Benedetto del Tronto (AP) Project: Cronometro Millesimale LCD a Microcontrollore Year: 2014 A A Size: Note: — DWG no. 1 Rev.: 1 Scale: 1:1 Sheet: http://www.narcisivalter.it/progetti/cronometro-LCD.html 1 of 1 EXTERNAL SWITCHES PCB Stopwatch +Vcc 2x 1N4148 470 470 2x 1N4148 1/1000 LCD Stopwatch with MCU - ©2014 by Valter Narcisi [email protected] - http://www.narcisivalter.it/progetti/cronometro-LCD.html WIRING Power Supply 12 Vcc ON-OFF Double Switch 1 16 1 Ni-Cd Ni-MH TP 24 MHz T1 LCD Contrast CV 24 Mhz adj. START RESET 1/1000 LCD Stopwatch with MCU - ©2014 by Valter Narcisi [email protected] STOP / Intermediate - http://www.narcisivalter.it/progetti/cronometro-LCD.html LCD Stopwatch Component list Designator Component C1 C2 C3 C4 C5 C6 R1 R2 R3 R4 R5 R6 R7 R8 R9 RX* T1 CV D1 D2 D3 XTAL Q1 U1 U2 U3 U4 LCD S1 S2 S3 M1 M2 M3 0.1u 0.1u 0.1u 47p 47u - 25V 10u - 16V 10k 47 4M7 10k 10k 10k 10k 22k 15k 1k 10k Trimmer 15-70p 1N4148 or equivalent 1N4001 or equivalent 1N4001 or equivalent 24 MHz Xtal BC237 PIC16F628A M74HC4060B1 HEF4059BP (CD4059) 78L05 (100mA) LCD Module Epson EA-D16015 PR-1 N.A. switch N.A. switch N.A. switch 5 way (for ICSP) 2 way terminal 2 way terminal http://www.narcisivalter.it/progetti/cronometro-LCD.html
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