Adafruit
32x32 RGB LED Matrix Panel - 4mm Pitch
A 32×32 full-colour RGB LED matrix panel with 1024 LEDs at 4mm pitch, measuring approximately 5 inches (128mm) square. These panels are commonly used in vide...
A 32×32 full-colour RGB LED matrix panel with 1024 LEDs at 4mm pitch, measuring approximately 5 inches (128mm) square. These panels are commonly used in video walls and signage, delivering bright, vivid colours with good white balance uniformity. On the back, dual IDC connectors (input and output) allow panels to be chained for larger displays.
The panel uses a 1:16 scan rate with 12 × 16-bit latches. It requires 13 digital pins (6 data + 7 control) and continuous redrawing to achieve PWM colour — on a 16 MHz Arduino, 12-bit colour (4096 colours) is achievable at ~40% CPU usage. Higher-performance controllers (FPGA, Raspberry Pi, Propeller) can drive these panels to their full potential.
Key Features
- 1024 RGB LEDs – 32×32 pixel resolution at 4mm pitch
- 12-Bit Colour on Arduino – 4096 colours with example library code
- Chainable – Dual IDC input/output connectors
- Pre-White Balanced – Good colour uniformity across the panel
- Compact – ~128 × 128mm (5 × 5 inches)
Specifications
- Resolution – 32 × 32 pixels (1024 total)
- Pixel Pitch – 4mm
- Scan Rate – 1:16
- Operating Voltage – 5V DC
- Current Draw – Up to 4A per panel
- Digital Pins Required – 13 (6 data + 7 control)
- RAM Required (Arduino) – ~1600 bytes for 12-bit colour buffer
Ideal For
- LED video walls and signage projects
- Arduino, Raspberry Pi, and FPGA display projects
- Animations, graphics, and text displays
Package Contents
- 1× 32×32 RGB LED Matrix Panel
- 2× IDC cables
- 1× Power cable
- 4× Mounting screws with mini-magnets
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- 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.
- RAM
- RAM is temporary memory used while a device is running, and its contents are lost when power is removed. A “Run in RAM” mode is useful for testing settings without permanently programming the module, but it may not support every feature.
- RGB
- Short for red, green and blue, usually referring to an LED that can mix those three colours. It matters because controlling an RGB LED teaches how separate outputs combine to create different colours.
Find this product in
Brands
Displays & Screens
Related Tutorials
Free guides on learn.littlebird.com.au
