Traffic Light LED Module

This Arduino-compatible traffic light LED module features built-in Red, Yellow, and Green LEDs arranged in a classic vertical traffic light layout, perfect for educational demonstrations, traffic control simulations, and DIY electronics projects.

Designed to operate at 5V logic, this module plugs directly into Arduino, ESP32, Raspberry Pi, or other microcontrollers using digital output pins. Each LED is pre-wired with a current-limiting resistor, allowing you to control the lights safely and easily with basic code.

Specifications:

• Operating Voltage: 5V DC

• LED Colors: Red, Yellow, Green

• Control: Digital pins (individually addressable)

• Built-in Resistors: Yes

• Module Size: ~45mm × 20mm

• Pin Header: 4-pin (GND, RED, YELLOW, GREEN)

• Compatibility: Arduino, ESP8266/ESP32, Raspberry Pi, STM32, etc.

Applications:

• Traffic signal simulation

• Smart city or IoT demonstration models

• STEM and classroom education kits

• Timing and sequencing tutorials for beginners

• Game or pedestrian crossing simulations

This plug-and-play traffic light module is an excellent tool for learning basic digital output control, timing loops, and condition-based logic in microcontroller programming.