LED Traffic Lights Signal Module / Digital Signal Output Traffic Light Module

LED Traffic Lights Signal Module (Digital Signal Output)

The LED Traffic Lights Signal Module is a fun, compact DIY accessory for building traffic-light system models and learning projects. This mini traffic-light display has high-brightness red, yellow and green LEDs and a simple common-cathode interface, so you can drive each colour directly from your microcontroller. Connect it to a PWM pin to control the brightness of the lights.

Features

• Mini traffic-light display with red, yellow and green LEDs
• High-brightness 10mm LEDs
• Common-cathode interface — independent control of each colour
• PWM-compatible for brightness control
• Runs on 5V — works with Arduino, ESP32, Raspberry Pi and more
• Ideal for traffic-light models, learning and DIY projects

Specifications

• PCB size: 60 x 20 x 13.5 mm (L x W x H)
• LED colours: Red, Yellow, Green
• LED size: 10 mm
• Operating voltage: 5V
• Interface: Common cathode (red / yellow / green control)

Applications

• Traffic-light system models
• Arduino / ESP32 / Raspberry Pi learning projects
• DIY electronics and educational demos

Package Includes

• 1 x LED Traffic Lights Signal Module

Frequently Asked Questions

What voltage does it need?
5V. Each colour has its own control pin (common cathode), so you switch red, yellow and green independently.

Can I control the brightness?
Yes — connect the LED pins to PWM outputs to dim each colour.

Does it work with Arduino?
Yes — Arduino, ESP32, ESP8266 and Raspberry Pi all work.

Recommended Pairings

Works great with our jumper wires and MB102 breadboard. Learn more about LEDs.