Datasheet

4
3. Pin Description
The INT pin has to be led out by customers themselves if customers want to use the interrupt
pin of MPR121.
The CH4~CH11 are for customer expanding the function, there are 4 feelers within the pack. If
you needs more, you can make the feelers by yourself or buy them in the
www.seeedstudio.com
The wires of feelers are twisted to reduce the impact of environment. The black(ground) wire
can be cut off if high sensitivity is needed.