Rev Counter for R/C Models
Using an optical sensor
Materials
Gerber file
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Extra info / Update
Component list
R1 = 390?
R2,R3,R6,R9,R11,R12,R53,R54 = 1k?
R4 = 5k?6
R5,R10 = 10k?
R7 = 1k?5
R8 = 22k?
R13-R52 = 680?
Capacitors:
C1 = 220µF 16V radial
C2,C3,C6-C14 = 100nF
C4,C5 = 22pF
C15 = 10µF 16V radial
Semiconductors:
D1 = zener diode 1.4V 500mW
D2 = IR LED (e.g., LD271)
IC1 = TLC272CP
IC2 = 89C2051-12PC, programmed, order code 024111-41
IC3,IC4,IC6,IC7,IC8 = 74HCT4094
IC5 = 74HC04
IC9 = 7805
LD1-LD5 = HD1133 O-K
T1 = BPW40
T2 = BC557
T3,T4 = BC547
Miscellaneous:
K1 = 9-V battery clip
S1,S2,S3 = pushbutton, 1 make contact
X1 = 12MHz quartz crystal
Enclosure: Bopla EG1530B
PCB, order code 024111-1
Disk, contains source- and hex code, order code 024111-11
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