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8PCS MPR121 Breakout V12 Capacitive Touch Sensor I2C Keyboard Development Board Controller Module
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About the item
- 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..
- Low power operation, 1.71 V to 3.6 V supply operation..
- 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..
- 29μA supply current at 16 ms sampling interval period..
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