Bare Conductive Touch Board, Arduino Compatible Board

The Bare conductive touch is a microcontroller board with a dedicated capacitive touch and MP3 decoder ICs. It has a headphone socket and micro SD card holder (for file storage), as well as, 12 capacitive touch electrodes. This device is based around the ATmega32U4 and runs at 16MHz from 5V. It has a micro USB connector, a JST connector for an external lithium polymer (LiPo) cell, a power switch, and a reset button. This device resembles the Arduino Leonardo board and can be programmed using the Arduino IDE. The ATmega32U4 can appear to a connected computer as a mouse or a keyboard, (HID) serial port (CDC), or USB MIDI device.

Note
Electric Paint: 50ml jar RS Part No. 835-2693 and 10ml tube RS Part No. 835-2699

12 x analogue input channels
12 x touch electrodes of which 8 can be configured as extra GPIO with PWM capability
20 x GPIO pins maximum
3.5 mm audio out jack socket
7 x PWM channels
Arduino compatible (recognised as an Arduino Leonardo in IDE)
Arduino Rev 3 shield compatible (check pins available)
ATMega32u4 16 MHz microcontroller, 32 KB flash memory, 2.5 KB SRAM, 1 KB EEPROM
Bootloader uses 4 KB of flash memory
Built in LiPo battery charger with status LED
Easy-to-use platform
External power socket
MicroSD card slot
MicroUSB socket
Power slide switch
Reset pushbutton
VS1053B multi-format audio CODEC

By combining the touch board and bare conductive paint and we can turn almost any material or surface into a capacitive or proximity sensor
Painting a light switch on your wall or making a paper piano or triggering a sound via the onboard MP3 player
Touch-activated projects enabled by combining touch board with electric paint

ANSI/ESD S20.20:2014
BS EN 61340-5-1:2007