Pimoroni Unicorn HAT - 8x8 RGB LED Shield for Raspberry Pi A+/B+
Discontinued 8x8 RGB LED HAT for Raspberry Pi A+/B+. Replaced by the Pimoroni Unicorn HAT HD.
Discontinued 8x8 RGB LED HAT for Raspberry Pi A+/B+. Replaced by the Pimoroni Unicorn HAT HD.
Raspberry Pi 40-pin header 5V rail supplying the Unicorn HAT LED matrix.
Raspberry Pi 40-pin header ground return for the HAT.
LED data signal from Raspberry Pi GPIO18; Pimoroni library sets LED_PIN = 18 and comments it is the GPIO pin connected to the pixels, must support PWM.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| 5V | physical pins 2/4 | Power | Raspberry Pi 40-pin header 5V rail supplying the Unicorn HAT LED matrix. | 5V power required; Pinout.xyz states Unicorn HAT needs 5V power. |
| GND | Raspberry Pi header ground pins | Ground | Raspberry Pi 40-pin header ground return for the HAT. | 0V |
| GPIO18DATA | physical pin 12 | GPIO | LED data signal from Raspberry Pi GPIO18; Pimoroni library sets LED_PIN = 18 and comments it is the GPIO pin connected to the pixels, must support PWM. |
Raspberry Pi 40-pin header 5V rail supplying the Unicorn HAT LED matrix.
Raspberry Pi 40-pin header ground return for the HAT.
LED data signal from Raspberry Pi GPIO18; Pimoroni library sets LED_PIN = 18 and comments it is the GPIO pin connected to the pixels, must support PWM.
Shield
Verify supply voltage and logic levels before powering up.
Module pins: 5V, GND. Schematik maps them to your board in the app.
About 270 add-ons across Pi HATs, Arduino shields, and FeatherWings. The same function — motor control, PoE, display — usually ships once per host connector family. Get the host board right first.
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