Turn touch into sound, light or data with your Raspberry Pi
Add touch and proximity sensing to your Raspberry Pi with the Pi Cap.
The Pi Cap is an easy-to-attach add-on board that brings capacitive sensing to your Raspberry Pi projects. It features 12 capacitive electrodes that can be used as touch or distance sensors. Extend each of these electrodes with Electric Paint or other conductive materials to create sensors on a wide range of substrates.
In addition to 12 capacitive sensors, the Pi Cap has a 3.5mm audio jack, multi-function button, user-programmable RBG LED, and a prototyping area with GPIO breakout. It comes with example code and libraries written in C++, Python, and Node.js.
The Pi Cap is compatible with any Raspberry Pi that has a 40 pin GPIO connector, including the latest Raspberry Pi 4 and Pi Zero W.
12 high resolution capacitive electrodes
The Pi Cap uses the MPR121 to create 12 capacitive electrodes. You can program the electrodes as touch or proximity sensors, and extend them using Electric Paint or other conductive materials. Use the electrodes to create sensors on a wide range of substrates, from walls, floors, and tabletops to textiles or paper.
Use with Raspberry Pi and Pi Zero
The Pi Cap works both with the Raspberry Pi and the Pi Zero. This means that you can use all of the Raspberry Pi’s features for your capacitive sensing project, like WiFi or Bluetooth.
Written in 3 languages
The Pi Cap comes with example code and libraries written in C++, Python and Node.js.