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Detailed Description:

The Traffic Light RGB LED Module is a popular and effective component for bringing interactive signaling to your electronics projects. This miniature 3-Color Signal Light is a convenient solution for simulating a real-world traffic system, providing distinct Red, Yellow, and Green LEDs mounted on a single, compact PCB. Its plug-and-play design simplifies complex wiring and is a favorite among hobbyists, students, and educators for its ease of use in a variety of applications, from educational kits to robotic projects and smart city simulations.

A key technical advantage of this module is its user-friendly interface. It operates on a low DC voltage of 3.3V to 5V, which is directly compatible with the digital I/O pins of popular microcontrollers like the Arduino, Raspberry Pi, and ESP32. Crucially, the module comes with built-in current-limiting resistors for each LED, meaning you can connect it directly to your board without the need for external components, which saves time and simplifies the circuit design. You can control each color independently by sending a digital HIGH signal to the corresponding control pin, and you can even use a PWM (Pulse Width Modulation) signal to vary the brightness of each LED. Whether you're building a model intersection, creating a visual status indicator for your project, or learning the basics of digital output control, this traffic light module provides a straightforward and reliable way to add a professional touch to your creation.

The Traffic Light RGB LED Module replicates a real-world traffic light system with three individual LEDs (Red, Yellow, Green) mounted on a compact PCB. It is designed for plug-and-play use with platforms like Arduino, ESP32, Raspberry Pi, and microcontrollers using digital output pins.

Each LED has its own current-limiting resistor, eliminating the need for external resistors. It’s perfect for education, smart city demonstrations, traffic simulations, and basic programming exercises in embedded systems.

Key Features:

• 3-color LEDs: Red, Yellow, Green in a traffic light pattern

• Operates on 3.3V to 5V logic – compatible with Arduino, ESP, etc.

• Built-in current limiting resistors

• Single row 4-pin interface (GND, VCC, R, Y, G)

• Compact design suitable for DIY models and educational kits

• Easy integration with breadboards or jumper wires

• Ideal for smart traffic control, STEM projects, and simulation labs

Technical Specifications:

How to Use:

1. Connect VCC to 5V, GND to Ground

2. Connect R, Y, G pins to digital I/O pins on your microcontroller

3. Use digitalWrite(pin, HIGH/LOW) to turn each light ON or OFF

4. Create logic or timed sequences to simulate real-world traffic behavior

Sample Arduino Code:

Applications:

• Smart traffic light simulations

• Arduino and Raspberry Pi LED control projects

• Educational robotics and STEM models

• Smart city prototypes

• Traffic-aware IoT systems

• Timing logic demonstrations

• Basic digital signal output testing

Package Includes:

• 1 x Traffic Light RGB Module (Red/Yellow/Green LEDs)