Adafruit MPR121 12-Key Capacitive Touch Sensor Breakout

12-channel capacitive touch breakout using I2C. The Adafruit breakout can be powered from 3.3V for Pico projects and uses address 0x5A by default.

VIN
Type · powerVoltage · 3.3
GND
Type · ground
SDA
Type · i2c
SCL
Type · i2c

Pin	Type	Voltage
VIN	power	3.3
GND	ground
SDA	i2c
SCL	i2c

Start wiring

I2C · 3.3

Confirm the data interface matches your host board.

Module pins: VIN, GND, SDA, SCL. Schematik maps them to your board in the app.

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Pinout

Start wiring

Air quality

Temp and humidity

Environment sensors

Light and colour

Pinout

Start wiring

Air quality

Temp and humidity

Environment sensors

Light and colour