This keypad is designed for Raspberry Pi and supplies your Pi with 16 keys. It has an I2C communication mode and uses 3.3 V supply voltage with a power indicator. We provide you with installation package, source codes and a document for complete your programs. Product Description Introduction This keypad is designed for Raspberry Pi and supplies your Pi with 16 keys. It has an I2C communication mode and uses 3.3 V supply voltage with a power indicator. We provide you with installation package, source codes and a document for complete your programs. Specification Chip: TTP229-LSF Supply Voltage: 3.3V Interface: I2C Size: 85x56x19.3 mm Download Attachment zip Download the Related Information from Bcm WinSCP rpi_TTP229L (5.77 MB ) Download pdf keyestudio RPI TTP229L 16-key Capacitive Touch Keypad PDF(315.18 KB ) Download