Mini Traffic Light LED Module

The Mini LED Traffic Light Module is a compact signaling unit designed for educational, prototyping, and embedded system applications. It integrates three LEDs (red, yellow, and green) with separate control pins, allowing direct interfacing with microcontrollers. The module operates with simple digital outputs, ensuring stable and predictable behavior in logic-based control systems. Built for easy wiring and reliable operation, it is suitable for traffic simulations, automation projects, and teaching digital electronics concepts.

Features

- Integrated 3-color LED system (red, yellow, green)

- Individual control pins for each LED channel

- Common ground (GND) interface

- Compatible with Arduino, Raspberry Pi, and microcontrollers

- Low power consumption LEDs

- Simple 4-pin connection interface

- Pre-assembled and ready to use

- Clear color separation for signal indication

- Compact and lightweight design

- Suitable for breadboard and PCB integration

- Stable operation with digital GPIO signals

- Durable LED components for long-term use

Specifications

- Operating Voltage: 3.3–5V DC

- Control Interface: Digital GPIO

- Number of LEDs: 3 (Red, Yellow, Green)

- Pin Count: 4 pins (GND, R, Y, G)

- LED Type: Standard 5mm LEDs

- Current Consumption: ~10–20 mA per LED

- Mounting Type: Through-hole / module board

- Dimensions: ~56 × 21 × 11 mm

- Weight: ~10 g

- Logic Compatibility: TTL / CMOS compatible

- Application Type: Signal indication and control systems

- Build Type: Pre-assembled module

Links

- Mini LED Traffic Light Module – 3-Color Signal with 4-Pin Control 3D Model

Tutorials

- LED Traffic Light Module with Arduino Nano - Youtube video