MPR121 V12 Proximity Capacitive Touch Sensor I2C Interface Module Water Pump For Waterfall A six wire cable from

A six wire cable from the Power Module is plugged into your Pixhawk/APM power port

Knob Diameter 15mm Knob Height 17mm

Metal and plastic

and you have a 18650 battery holder

MPR121 V12 Proximity Capacitive Touch Sensor I2C Interface Module Water Pump For Waterfall A six wire cable fromThis MPR121 is a capacitive touch sensor controller driven by an I2C interface. The chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode The MPR121 also features eight LED driving pins, when these pins are not configured as electrodes, they may be used to drive LEDs. There are four jumpers on the bottom of the board, all of which are set (closed) by default. An address jumper ties the ADD pin to the ground,