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61737101e6474d36f17604e3 MPR121 Capacitive Touch Sensor Breakout https://cdn1.storehippo.com/s/59c9e4669bd3e7c70c5f5e6c/617370fab2435f369e6133b5/webp/mpr121-capacitive-touch-sensor-breakout.jpg

Description:

This is a breakout board for Freescale's MPR121QR2. The MPR121 is a capacitive touch sensor controller driven by an I2C interface. The chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode. The MPR121 also features eight LED driving pins. When these pins are not configured as electrodes, they may be used to drive LEDs.

There a four jumpers on the bottom of the board, all of which are set (closed) by default. An address jumper ties the ADD pin to the ground, meaning the default I2C address of the chip will be 0x5A. If you need to change the address of the chip (by shorting ADD to a different pin), make sure you open the jumper first. Jumpers also connect SDA, SCL, and the interrupt pin to 10k pull-up resistors. If you don't require the pull-up resistors you can open the jumpers by cutting the trace connecting them.

There is no regulation on the board, so the voltage supplied should be between 2.5 and 3.6VDC. The VREG pin is connected through a 0.1uF capacitor to the ground, which means, unless you modify the board, you can't operate the MPR121 in low-supply voltage mode (1.71-2.75VDC).

Features:

  • Working Voltage: 2.5-3.6V DC

Package List:

  • 1 x MPR121 Capacitive Touch Sensor Breakout

Documents:

TT-MF-MSP121MPR
in stock INR 136.8
Makerfabs
1 1

MPR121 Capacitive Touch Sensor Breakout

Sku: TT-MF-MSP121MPR
₹136.8


Sold By: tenettech
Features
  • Shipping in 10-12 Working days

Description of product

Description:

This is a breakout board for Freescale's MPR121QR2. The MPR121 is a capacitive touch sensor controller driven by an I2C interface. The chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode. The MPR121 also features eight LED driving pins. When these pins are not configured as electrodes, they may be used to drive LEDs.

There a four jumpers on the bottom of the board, all of which are set (closed) by default. An address jumper ties the ADD pin to the ground, meaning the default I2C address of the chip will be 0x5A. If you need to change the address of the chip (by shorting ADD to a different pin), make sure you open the jumper first. Jumpers also connect SDA, SCL, and the interrupt pin to 10k pull-up resistors. If you don't require the pull-up resistors you can open the jumpers by cutting the trace connecting them.

There is no regulation on the board, so the voltage supplied should be between 2.5 and 3.6VDC. The VREG pin is connected through a 0.1uF capacitor to the ground, which means, unless you modify the board, you can't operate the MPR121 in low-supply voltage mode (1.71-2.75VDC).

Features:

  • Working Voltage: 2.5-3.6V DC

Package List:

  • 1 x MPR121 Capacitive Touch Sensor Breakout

Documents: