Raspberry Pi Touch Keypad
16-key I2C capacitive touch keypad expansion board for Raspberry Pi, using the TTP229-LSF IC with adjustable sensitivity, 2.4–5.5 V operation, and auto-recalibration. Allow 0.5 s stabilization after power-on before touching keys.
Pinout
- VCC (2.4-5.5V)GNDType · Power, Ground
- SDASCL (I2C)Type · I2C, Signal
- 16 touch keysType · Signal
| Pin | Type |
|---|---|
| VCC (2.4-5.5V)GND | Power, Ground |
| SDASCL (I2C) | I2C, Signal |
| 16 touch keys | Signal |
Pin details
3 connections- VCC (2.4-5.5V)GNDPower, Ground
- SDASCL (I2C)I2C, Signal
- 16 touch keysSignal
Start wiring
I2C · Analog · USB · 3.3 – 5 V · Breakout
Confirm the data interface matches your host board.
Module pins: VCC (2.4-5.5V) / GND, SDA / SCL (I2C), 16 touch keys. Schematik maps them to your board in the app.
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