4 Way Traffic Light Circuit Using 555 Timer And 4017. It produces a pulse that depends on the timing of the resistor and capacitor. Coming to the working principle of traffic lights the main ic is 4017 counter ic which is used to glow the red yellow and green led respectively.
It produces a pulse that depends on the timing of the resistor and capacitor. Circuit diagram construction and working two timer ics biased with 12 volt power supply the left side timer provides output through red led the right side timer led provides output through yellow led and green led. Sequential circuits are used to count the numbers in the series.
So for controlling traffic in easy ways we u.
The main ic is 4017 counter ic which is used to glow the red yellow and green led respectively. The 555 timer ic operates as an astable multivibrator. The ten stage decade counter have a memory of ten. 555 timer acts as a pulse generator providing an input to the 4017 counter ic.
