Little Bird
RGB LED Module
This RGB LED module gives your microcontroller project a simple way to add full-colour light. It uses a common-cathode through-hole RGB LED, with separate re...
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This RGB LED module gives your microcontroller project a simple way to add full-colour light. It uses a common-cathode through-hole RGB LED, with separate red, green and blue channels for mixing colours.
Each colour channel has a built-in current-limiting resistor, helping protect the LED from burnout without needing extra resistors on a breadboard. Drive the R, G and B pins with PWM from an Arduino or other 5 V microcontroller to create a wide range of colours.
The module uses a straightforward 4-pin connection for red, green, blue and ground. The package includes 1× RGB LED module.
Features:
- Full-Colour RGB LED: Common-cathode, through-hole LED
- Built-In Resistors: Current-limiting resistors on R, G, and B channels prevent burnout
- PWM Colour Mixing: Adjust each channel to create any colour
- 5 V Compatible: Works with Arduino and standard microcontrollers
Specifications:
- Operating Voltage: 5 V
- LED Type: Common-cathode RGB
- Interface: 4-pin (R, G, B, GND)
Ideal for Arduino colour-mixing projects, status indicators, mood lighting and learning PWM control.
Jargon buster
Plain-language definitions for the technical terms used above.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- RGB
- Short for red, green and blue, the three primary colours of light that are mixed in varying amounts to make a wide range of colours. In electronics RGB can refer to an LED or pixel that blends these three colours, or to a colour signal or interface that carries separate red, green and blue channels.
- through-hole
- A mounting style where the component leads pass through holes in a circuit board and are soldered on the other side. Through-hole parts are often easier to handle and solder by hand, which is useful for classroom and hobby projects.
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