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Adafruit 12-Key Capacitive Touch Sensor Breakout - MPR121

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Product ID: 58305275
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About the item

  • Make sure this fits by entering your model number..
  • Adafruit Part Number: 1982.
  • Stock Type: Sensors >> Touch.
  • In Stock & Ready to *.
Add lots of touch sensors to your next microcontroller project with this easy-to-use 12-channel capacitive touch sensor breakout board, starring the MPR121. This chip can handle up to 12 single touch pads. The MPR121 has support for only I2 C, which can be implemented with Nearly any microcontroller. You can select one of 4 addresses with the ADDR pin, for a total of 48 capacitive touch pad on one I2 C 2-wire bus. Using this chip is a lot easier than doing the capacitive sensing with analogue inputs it handles. All the filtering for you and can be configured for more / less sensitivity. This sensor comes as a tiny hard-to-solder chip so we put it onto a breakout board for you. Since it's a 3 V-only chip, we added a 3 V regulator and I2 C level shifting so its safe to use with any 3 V or 5 V microcontroller/processor like Arduino. We even added an LED onto the IRQ Line so it will blink when touches are detected by A Bit, making debugging easier on you. Comes with a fully assembled board, and a stick of 0.1 header so you can plug it into a breadboard. For contacts, we shake using copper foil or pyralux, then solder wire that connects from the foil pad to the breakout. Getting Started is a breeze with our Arduino Library and Tutorial. You'll be up and running in a few minutes, and if you are using Another Microcontroller, ITS Easy to port Our Code. Of course, we wouldn 't leave you with a data sheet and a good luck. We Wrote A detailed tutorial shows how to wire up the sensor, use it with an Arduino code and example that gets the sensor logging data and detecting yourtouch.
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