4 Way Traffic Light Circuit Using 555 Timer And 4017. Traffic signal lights are very important to regulate vehicles and traffic on roads simple four way traffic light circuit is read more. In this way 4 states are possible for which different vehicles will pass through the signals.
The 555 timer ic operates as an astable multivibrator. The timer generates pulses and these pulses are fed to the ten stage decade counter. Simple four way traffic light circuit.
The 555 timer ic operates as an astable multivibrator.
This changes the output logic into high or low. The four way traffic light uses a 555 timer ic and a counter ic cd4017. 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. Timing of glow of certain lights totally depends upon the 555 timer s pulse which we can control via the potentiometer so if you want to change the time of glow you can do so by varying the potentiometer having the responsibility for the timing.
