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Description: The Pimoroni Unicorn HAT is a “shield” for the Raspberry Pi that sports a matrix of 64 (8x8) addressable RGB LEDs that are powered directly from the Pi. The Unicorn HAT provides a wash of controllable color that is ideal for mood lighting, 8x8 pixel art, persistence of vision effects, status indications, or just blasting color into your surroundings.

Each Pimoroni Unicorn Hat easily snaps on top of a Raspberry Pi equipped with a 40-pin (2x20) GPIO. Pimoroni has created a GitHub repository bundling the Unicorn Hat software with a set of examples to get you started in an easy-to-use Python module, so all you have to worry about is setting the color you want each pixel to be.


  • 64 RGB LEDs (WS2812B)
  • Python API
  • Compatible with Raspberry Pi 3, 2, B+, and A+
  • EEPROM with Raspberry Pi HAT configuration details
  • LED data driven via DMA over PWM


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Customer Comments

  • I read elsewhere that the only connections needed to drive from Arduino are +5v, Gnd and an output with serial data from the Arduino. Is Unicorn happy with a 5v data signal? 3v3? And what power should the psu be capable of? Capacitor, etc? required on power line?

    • The Unicorn HAT has everything that’s required integrated on board. You simply plug it onto the Pi GPIO and install the software libraries for use. It handles the level shifting and power supply!

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