Questions in MPR121 Capacitive Touch keypad

The MPR121QR2 is a capacitive touch sensor controller that makes it very easy to integrate capacitive touch sensing into your project. It communicates via I2C, and works by measuring the capacitance of twelve electrode points. When an object comes close t

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The MPR121QR2 is a capacitive touch sensor controller that makes it very easy to integrate capacitive touch sensing into your project. It communicates via I2C, and works by measuring the capacitance of twelve electrode points. When an object comes close t