The Adafruit Capacitive Touch HAT adds 12 capacitive touch sensors to your Raspberry Pi using the MPR121 touch controller over I2C. Each sensor has a figure-8 hole designed for alligator clip connections — attach clips to the HAT and the other end to anything conductive (metal, fruit, vegetables, or water-filled objects) to create touch-reactive projects.

The included Python library makes it straightforward to detect touches, convert them into keyboard keypresses, or trigger audio playback. No soldering is needed for the touch connections themselves — just clip and go. For permanent installations, solder pads are also available.

Key Features

• 12 Capacitive Touch Sensors – MPR121 controller with I2C interface
• Figure-8 Alligator Clip Holes – Easy grip connections for each sensor pad
• Python Library – Detect touches, generate keypresses, or play audio per sensor
• HAT Form Factor – Plugs directly onto the Raspberry Pi 40-pin GPIO header
• Solder Pads – Available for permanent, slimmer connections

Compatibility

• Raspberry Pi Model A+, B+, Pi 2, Pi 3, Pi 4 (with included 2×20 header)
• Raspberry Pi Model A or B (requires a 2×13 extra-tall header, not included)

Ideal For

• Interactive touch installations
• Fruit and vegetable keyboards/drums
• Touch-activated audio players
• Educational projects and exhibits

Package Contents

• 1× Adafruit Capacitive Touch HAT (MPR121)
• 1× 2×20 socket header (requires soldering to the HAT)