Freescale Semiconductor Data Sheet: Technical Data An Energy Efficient Solution by Freescale Document Number: MPR121 Rev.
4, 02/2013 Proximity Capacitive Touch Sensor Controller The MPR121 is the second generation sensor controller following the initial release of the MPR03x series of devices.
The MPR121 features an increased internal intelligence plus Freescale’s second generation capacitance detection engine.
Some major enhancements include an increased electrode count, a hardware configurable I2C address, an expanded filtering system with debounce, and completely independent electrodes with built-in autoconfiguration.
The device also features a 13th simulated electrode which represents ...

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