MPR121 MPR121-Breakout-v12 Breakout V12 Proximity Capacitive Touch Sensor Module

商品説明

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 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.

Features:

voltage supplied: 2.5 and 3.6VDC
model: MPR121

Package included:

1 X MPR121 MPR121-Breakout-v12 Breakout V12 Proximity Capacitive Touch Sensor Module