RGB Full Color LED Module

The RGB Full Color LED Module is a versatile and beginner-friendly lighting component built around a plug-in RGB LED that combines red, green, and blue light-emitting elements in a single package. By independently varying the brightness of each color channel through PWM (Pulse Width Modulation), users can mix and produce virtually any color in the visible spectrum, including pure white when all three channels are activated together.

The module is built on a high-quality FR4 PCB with integrated current-limiting resistors for each color channel, eliminating the need for external resistors and protecting the LED from burnout during direct microcontroller connection. It uses a common cathode design, where the GND pin is shared by all three colors and each individual color is driven from a separate signal pin. This straightforward configuration makes it ideal for direct connection to Arduino's PWM-capable digital pins (such as pins 3, 5, 6, 9, 10, and 11 on the Uno).

Operating at a standard 5V DC, the module consumes minimal power (≤60mA total) and remains stable across a wide temperature range, making it suitable for both indoor decorative builds and embedded system status indicators. The compact PCB measures only about 20 × 15mm, allowing it to fit easily into small enclosures, robotic platforms, and educational kits.

Whether used for mood lighting, smart home indicators, IoT alerts, gaming peripherals, or interactive art, the RGB LED Module delivers vibrant, customizable color output with minimal wiring and effort, making it one of the most popular components for Arduino-based color experimentation.

Specifications

• LED Type: RGB (Red, Green, Blue) plug-in LED
• Configuration: Common Cathode
• Operating Voltage: 5V DC
• Control Method: PWM (Pulse Width Modulation)
• Interface: 4-pin (R, G, B, GND)
• Current Limiting: Built-in resistors for each channel
• Forward Voltage (Red): Approximately 1.8 – 2.2V
• Forward Voltage (Green): Approximately 3.0 – 3.2V
• Forward Voltage (Blue): Approximately 3.0 – 3.2V
• Typical Current per Channel: 10 – 20 mA
• Total Power Consumption: ≤ 60 mA
• Module Dimensions: Approximately 20 × 15 mm
• PCB Material: FR4
• Operating Temperature: -20°C to +60°C
• Compatibility: Arduino, Raspberry Pi, and other MCU platforms

Applications

• Mood and Ambient Lighting for rooms, desks, and creative installations
• Status Indicators in IoT and smart home devices
• Arduino and Raspberry Pi Color Mixing Projects
• Educational STEM Kits teaching PWM, color theory, and electronics
• Robotics Feedback Lights to indicate states or modes
• Interactive Art and Light Sculptures with dynamic color effects
• Gaming and PC Peripheral Lighting customizations
• Visual Alerts for sensor thresholds (temperature, motion, gas, etc.)
• Wearable Electronics and Cosplay Props
• Holiday and Party Decorations with color-changing effects
• Color Sensor Calibration and demonstration setups
• Prototyping before integrating WS2812B or addressable LED solutions