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sparkfun/MPR121_Capacitive_Touch_Keypad

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NOTE: This product has been retired from our catalog. If you are looking for more up-to-date info, please check out some of these resources to see how other users are still hacking and improving on this product.

MPR121 Capacitive Touch Keypad

Capacitive Touch Keypad

MPR121 Capacitive Touch Keypad (SEN-12017)

The MPR121 capacitive keypad uses the MPR121 and 12 touch sensitive pads to give you a simple 'keypad' with an I2C output. The board also has four mounting holes allowing it to be used as na input system in place of traditional buttons.

Note: This is uses 3.3V logic. You will want to use a logic level converter with this for 5V systems.

Repository Contents

  • /Firmware - Any firmware that the part ships with,
  • /Hardware - All Eagle design files (.brd, .sch)
  • /Production - Test bed files and production panel files

Documentation

Version History

License Information

The hardware is released under Creative Commons Share-alike 3.0.
All other code is open source so please feel free to do anything you want with it; you buy me a beer if you use this and we meet someday (Beerware license).

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MPR121 Capacitive Touch Keypad from Sparkfun.com

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