Arduino 4-Way Traffic Signal Project
A working 4-way traffic signal controlled by Arduino: red, yellow and green LEDs cycle automatically at a four-road junction, built on a finished road-and-grass diorama with toy cars — an eye-catching, demo-ready project.
This project recreates a real four-way road junction with a central traffic signal tower. An Arduino runs the timing logic, so the red, yellow and green LEDs on all four sides change automatically in the correct sequence, just like a real intersection. Because it is mounted on a proper road-and-grass model with lane markings and toy cars, it stands out instantly at exhibitions — the idea explains itself the moment the lights start cycling.
What is included
- Assembled 4-way road junction model with grass base
- Central traffic signal tower with red / yellow / green LEDs on all sides
- Arduino-based control with the traffic timing sequence
- Wiring, breadboard and USB cable
- Demonstration-ready project
Great for
- Final year projects (FYP) and semester submissions
- School and college electronics and robotics exhibitions
- Learning Arduino timing, sequencing and LED control
- Understanding how automatic traffic signals work
What it teaches
Arduino programming, timed sequencing, multi-LED control and real-world automation logic — a colourful, easy-to-explain project. Building your own? Start with our Arduino Uno and browse LEDs.
Why buy from Arduino Corner
Complete, tested project kits at the best prices in Pakistan — ideal for school science exhibitions and final year projects (FYP). Visit us: Arduino Corner, Shaheen Market, DAV College Road, Rawalpindi. We ship across Rawalpindi, Islamabad and all of Pakistan with cash on delivery.
