Traffic light control circuit using IC CD4017
₹250.00
In StockA traffic light control circuit using IC CD4017 is a simple digital electronics project that mimics the working of a real traffic light system. It uses the CD4017 decade counter IC along with a timer (usually 555 IC) to sequentially switch Red, Yellow, and Green LEDs, simulating the flow of traffic signals.
Description
The CD4017 is a CMOS Decade Counter/Divider IC with 10 decoded outputs (Q0 to Q9). It is widely used in sequential control applications. When combined with a 555 timer IC (configured in astable mode), it forms the basis for a traffic light control system.
Here’s how the circuit works:
- The 555 timer generates a continuous clock pulse (square wave).
- These pulses are fed into the CD4017, which advances its output from Q0 to Q9 one by one with each clock pulse.
- By connecting Red, Yellow, and Green LEDs to specific outputs (like Q0, Q1, Q2), you can simulate a traffic light sequence.
- The timing of each light can be controlled by adjusting the resistor-capacitor (RC) values of the 555 timer.
The system repeats in a loop, much like actual traffic signals, but simplified for demonstration purposes.
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