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MPR121 Capacitive Touch keypad

MPR121 Capacitive Touch keypad
MPR121 Capacitive Touch keypad
MPR121 Capacitive Touch keypad
MPR121 Capacitive Touch keypad
MPR121 Capacitive Touch keypad
MPR121 Capacitive Touch keypad
MPR121 Capacitive Touch keypad
MPR121 Capacitive Touch keypad
MPR121 Capacitive Touch keypad
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₱180.00
  • Stock: In Stock
  • Product Code: 580013266
  • Product ID: 580013266
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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 to the electrode connector, the measured capacitance changes. This signals the MPR121 that something has touched a ‘button’. The IC is also capable of driving LEDs or basic GPIO functionality on electrode pins 4 through 11, giving you a lot of freedom for setting up your project. The sensor works from 1.6V to 3.3V. The sensor isn’t very current-hungry, drawing only around 29 µA when sampling every 16 milliseconds.



Specifications :
Power Input 1.6-3.3VDC
Current
 29uA
Communication
 i2c
PCB Dimensions
 78x49mm



Downloads :
Hardware Manual
 Download
Sample Arduino / gizDuino Sketch
 Download



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