2pcs Breakout V12 Capacitive Touch Sensor Controller

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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
• The MPR121 also features eight LED driving pins. When these pins are not configured as electrodes, they may be used to drive LEDs
• There are four jumpers on the bottom of the board, all of which are set (closed) by default
• An address ties the 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 firs
• Jumpers also connect SDA, 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 to ground, which means, unless you modify the board, you can't operate the MPR121 in low-supply voltage mode (1.71-2.75VDC)
• Material:
• Size: approx.30mm*20mm*3mm
• Color: Red

• 1 Sensor Module
• 2 x Pin Header

Package Includes:

• 2x Touch Sensor Module with Pin Header

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