ITEM NAME:MPR121 breakout V12 capacitive touch sensor controller module I2C keyboard B Gw.This is a breakout board for MPR121QR2. The MPR121 also features eight LED driving pins. There a four jumpers on the bottom of the board, all of which are set (closed) by default. Jumpers also cont SDA, SCL and the interrupt pin to 10k pull-up resistors.