Adafruit
Adafruit DotStar High Density 8x8 Grid - 64 RGB LED Pixel Matrix
The Adafruit DotStar High Density 8×8 Grid packs 64 individually addressable RGB LEDs into a compact 25.4 mm × 25.4 mm (1" × 1") square. Each DotStar pixel f...
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The Adafruit DotStar High Density 8×8 Grid packs 64 individually addressable RGB LEDs into a compact 25.4 mm × 25.4 mm (1" × 1") square. Each DotStar pixel features a built-in PWM driver and is controlled via a 2-wire SPI interface using just two digital I/O pins — data and clock.
Each LED delivers full 24-bit colour with high-frequency PWM for smooth, flicker-free output. The grid includes two 4-pad connection ports on the back for easy wiring, plus a power/ground pad set for an optional 220 uF capacitor. Four mounting holes can be snapped off with pliers for a perfect 1" square form factor.
Key Features
- 64 RGB DotStar LEDs – 8×8 matrix in a tiny 25.4 mm × 25.4 mm package
- 24-Bit Colour – 8 bits per channel (red, green, blue) per LED
- 2-Wire SPI Control – Clock + data pins; hardware SPI supported but not required
- High-Frequency PWM – Smooth colour blending with no visible flicker
- Chainable – Input and output ports allow daisy-chaining multiple grids
- Compact Design – Capacitor mounts on the back; mounting holes snap off for a clean square
Ideal For
- Miniature LED displays and pixel art
- Wearable electronics and cosplay
- Status indicators and data visualisation
- Multi-panel tiled LED arrays
Package Contents
- 1× DotStar 8×8 RGB LED grid (64 pixels)
Jargon buster
Plain-language definitions for the technical terms used above.
- 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.
- 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.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
- uF
- uF, or microfarad, is a unit of capacitance equal to one millionth of a farad. A capacitor's uF value helps you pick the right part for tasks like smoothing voltage, coupling signals, or setting timing in a circuit.
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