Capacitive Touch Sensor 12 Key Breakout

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 individual touchpads.

The MPR121 has support for only I2C, 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 pads on one I2C 2-wire bus. Using this chip is a lot easier than doing the capacitive sensing with analog inputs: it handles all the filtering for you and can be configured for more/less sensitivity.

Quick Spec

  • Uses I2C 7-bit address 0x5A (can be set to 0x5B, 0x5C or 0x5D)
  • Dimensions: 33 x 19.6mm
  • Net Weight: 5g

Wiring Diagram

sensors-MPR121-Arduino-breadboard-bb

Resources

Shipping List

  • 1 x Capacitive Touch Sensor 12 Key Breakout
  • 1 x Header Set


Capacitive Touch Sensor 12 Key Breakout

  • Brand: Adafruit
  • Product Code: AF1982
  • Weight: 0.005kg
  • Product Status : Active
  • Stock

    Warehouse Stock Status Location
    Centurion Limited Stock FF288
    Stellenbosch Limited Stock J7032
    Bulk Location No Stock

    We ship free of charge between branches to complete your order.

  • R175.00 (Inc Tax: R201.25)


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Tags: 12 keys, capacitive, touch, MPR121, I2C, module