Adafruit Trellis Monochrome Driver PCB for 4x4 Keypad & 3mm LEDs
4x4 keypad driver PCB with backlit 3 mm LED support over I2C; up to eight tiles tile together on a shared I2C bus.
Pinout
- VCCGNDType · Power, Ground
- SDASCL (I2C)Type · I2C, Signal
| Pin | Type |
|---|---|
| VCCGND | Power, Ground |
| SDASCL (I2C) | I2C, Signal |
Pin details
2 connections- VCCGNDPower, Ground
- SDASCL (I2C)I2C, Signal
Start wiring
I2C · Analog · USB · 3.3 – 5 V · Breakout
Confirm the data interface matches your host board.
Module pins: VCC / GND, SDA / SCL (I2C), 4x4 keypad matrix + 3mm LED matrix. Schematik maps them to your board in the app.
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