Datasheet

Electrodes

Once you have the MPR121 breakout working you'll want to construct electrodes. These are

large conductive piece of copper, foil, paint, etc that will act as the "thing you touch"

Remember that electrodes must be electrically conductive! We suggest copper foil tape,

conductive fabrics, ITO, pyralux flex PCB, etc. We have tons of great conductive materials in

our Materials category. Some can be soldered to, others can be clipped to with alligator

chips. (http://adafru.it/dKI)

Remember, it doesn't have to be metal to be electrically conductive. Other things that work

are tap or salt water, many kinda of food, even fruit!

We suggest soldering a wire to the electrode pad on the breakout and then soldering or

clipping it to whatever you want your electrode to be.

https://learn.adafruit.com/adafruit-mpr121-12-key-capacitive-touch-

sensor-breakout-tutorial

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