Bare Conductive Touch Board



Add touch and proximity sensing to your interactive project with the Touch Board.

The Touch Board is a microcontroller board with 12 capacitive touch and proximity electrodes, so you can use it to turn any material or surface into a sensor. Extend each of the Touch Board’s electrodes using Electric Paint or other conductive materials to create sensors on a range of objects or substrates. The base of the Touch Board is completely level, so you can easily attach it onto any flat surface.

The Touch Board has an MP3 decoder and MIDI synthesizer, as well as a 3.5mm audio jack and micoSD cardholder and comes with a 128MB microSD card.

The Touch Board is based on the Arduino Leonardo and uses the ATmega32U4, running at 16MHz and 5V. You can reprogram it using the Arduino IDE and a micro USB cable. The Touch Board also has a JST connector for an external LiPo battery, a power switch, and a reset button.


12 high resolution capacitive electrodes

The Touch Board uses the MPR121 chip, giving it 12 capacitive electrodes. Configure these electrodes as either touch or proximity sensors, and program them to trigger outputs or stream data. Extend each electrode using conductive materials, for example, Electric Paint. Using Electric Paint allows you to paint sensors on a wide range of substrates, from walls, floors, and tabletops to textiles or paper.


On-board MP3 decoder and MIDI synthesizer

The Touch Board features the MP3 decoder and MIDI synthesizer VS1053b, so you can play MP3 files or simulate a MIDI instrument via speakers or headphones connected to the audio jack. The MP3 files are read off the supplied microSD card and can be changed without having to reprogram the Touch Board.


USB Serial, MIDI interface and mouse and keyboard

When plugged into a computer, the Touch Board can act as a USB serial device, USB MIDI interface or as a USB mouse or keyboard. Use the data from the electrodes as an input for software that utilises either serial, MIDI or keyboard strokes.





  • 1 x Touch Board
  • 1 x microSD card

Not included: Micro USB cable