Traffic light circuit – This would be a great addition to any model railway layout. This project operates red, amber and green LEDs in the sequence for a traffic light.
The 555 astable circuit provides clock pulses for the 4017 counter which has ten outputs. Each output becomes high in turn as the clock pulses are received. Appropriate outputs are combined with diodes to supply the amber and green LEDs.
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Post time: Jun-05-2017