Adafruit 8 key capacitive touch sensor breakout i2c or spi adafruit 1602 p the adafruit 8 key capacitive touch sensor breakout gives any microcontroller with i2c the power of touch using the cap1188 chip to handle the triggering and filtering of the capacitive touch sensors means the mcu can get on with more important tasks this is a very capable chip with configurable sensitivity automatic recalibration and individual thresholds for each touch pad all very useful features which would