Direction-Sensitive Light Barrier
Materials
Gerber file
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Component list
R1,R2 = 10-100kOhm (see text)
R3,R4 = 100kOhm
R5,R6 = 47kOhm
R7 = 1MOhm5
R8,R9 = 27kOhm
P1,P2 = 1MOhm preset
Capacitors:
C1-C4 = 10nF
C5,C6 = 100µ F 16V radial
C7-C10 = 100nF
C11 = 4µ F7 16V
C12 = 470µ F 35V
Semiconductors:
B1 = B80C1500 (80V piv, 1.5A)
D1-D4 = 1N4148
IC1 = 4093
IC2 = 556
IC3 = 7812
T1,T2 = BPW40
Miscellaneous:
RE1, RE2 = 12V relay (400Ohm ), 1× changeover contact
K1 = 2 solder pins
K2,K3 = 3-way PCB terminal block, lead pitch 5mm
PCB, order code 030333-1 from The PCBShop
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