The module MPR121 touch control chip, which can have up to 12 touch points, eight of which also touch points can be set for the LED driver.
The chip uses 1.71 V to 3.6 V power supply, when the sampling period of 16ms of current is only 29uA when external trigger input, the chip to interrupt and I2C way to notify the external device.
Very versatile, it can be used as computer peripherals, MP3 player, remote control, lighting control, and mobile phones.
When MPR121 induction to change IRQ interrupt pin will be pulled low.

Technical Details

Product Details

Package Dimensions
Width : 3.11 inch
Height : 0.39 inch
Length : 5.91 inch

Shipping Weight: 0.64 ounce (View shipping rates and policies)

ASIN : B01J0MGCG4