Traffic Light LED Module — Red / Yellow / Green, Arduino

Traffic Light LED Module — Red / Yellow / Green, Digital Output, Arduino

The traffic light LED module is the perfect beginner Arduino project component — three LEDs (red, yellow, green) mounted on a single PCB module with current-limiting resistors pre-installed, ready to connect directly to Arduino GPIO pins without any additional components. Simply connect VCC, GND, and three digital output pins to control each LED independently.

This module is widely used in Arduino beginner tutorials, robotics projects, and educational electronics kits to teach digital output control, timing, and state machine programming concepts in a visually intuitive way.

Key Features

• Three LEDs: Red, Yellow, Green — traffic light color set for signal and indicator projects
• Pre-installed current-limiting resistors — connect directly to Arduino GPIO; no additional components needed
• Digital output control — each LED controlled independently via digital HIGH/LOW
• Compact PCB module — easy breadboard and PCB integration
• 3.3V and 5V compatible — works with Arduino, ESP32, and Raspberry Pi

Typical Applications

• Arduino beginner traffic light projects
• Robotics and autonomous vehicle signal systems
• Educational electronics kits and STEM projects
• Status indicator and alert systems

Technical Specifications

• LEDs: Red, Yellow, Green
• Control: Digital output (HIGH/LOW per LED)
• Supply Voltage: 3.3V – 5V
• Interface: 5-pin (VCC, GND, R, Y, G)
• Brand: Keszoox
• Origin: Mainland China

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