MPR121 Capacitive Touch Sensor Keypad 4x3

: SEN19014
€3.50
Tax included

The MPR121 touch sensor is often used as a keypad to allow data entry without mechanical or dome switches. This plugin supports up to 12 inputs, with optional separate configuration and calibration.

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*Disclaimer: The images are merely illustrative.

Description

  1. Size: 48mm*78mm

  2. Operating voltage: 3.3V

  3. Communication protocol: I2C

  4. Operating temperature range: -40°C to +85°C

 

 

MPR121 Touch Keypad Pinout

This Module has 5 pins:

  1. VCC: Module power supply – 3.3V

  2. GND: Ground

  3. SCL: I2C Clock

  4. SDA: I2C Data

  5. IRQ: Interrupt output pin

 

 

 

 

Interfacing MPR121 Touch Keypad with Arduino

 

SEN19014

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