Dark sensor circuit

Dark sensor circuit

binary counter using 555 ic

BINARY COUNTER CIRCUIT

Component details

R1 - 100K Ohms

R2 - 33k Ohms

R3 - 330 Ohms

C1 - 10 uF

IC1 - 555 Timer

IC2 - 4520, Dual Binary Counter

4 LEDs

+V - 4.8 volts  

simple metal detector circuit diagram

simple metal detector circuit diagram

IC CS209A metal detector circuit diagram



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