# TT21100 I2C Touch Controller Peripheral Component The `TT21100` is a touch controller that supports up to 10 touch points. It supports both mutual and self capacitance sensing. It can be used with `TT21100` touchpad sensor. This touch controller can be found in the ESP32-S3-BOX. ## Example The [example](./example) demonstrates how to use the TT21100 driver. It is designed to work with the ESP32-S3-BOX dev board, but can be adapted to work with other boards which have a TT21100 chip.
idf.py add-dependency "espp/tt21100^0.21.0"