Keyestudio TTP229L 16-key Touch Sensor for arduino Uno R3

The Keyestudio TTP229L 16-key Touch Sensor is a digital capacitive touch switch module designed for Arduino Uno R3 projects. It is an ideal interface solution for students, makers, and hobbyists looking to add responsive, touch-based keypads to their custom electronics.

Capacitive touch sensing technology

This module functions as a 16-key digital capacitive touch switch sensor, utilising a capacitive sensing trigger mode. It replaces traditional mechanical buttons with a sleek, wear-free touch interface.

Simple I2C communication

The sensor communicates via an I2C interface, which ensures simple and convenient wiring with your microcontroller. This minimises the number of digital pins required on your Arduino Uno R3.

Onboard TTP229 controller IC

Powered by the onboard TTP229 capacitive 16-key touch sensor IC, this board delivers reliable touch detection. It also features an onboard power indicator LED for easy status monitoring.

Configurable output modes

The module supports adjustable settings, allowing you to configure the output mode, key output mode, longest output time, and fast or low-power options.

Compact physical specifications

Operating on a flexible working voltage of 2.4V to 5.5V, the board measures 85mm by 55mm and weighs just 15.5g. Keyestudio provides a wiki page tutorial to help you get started quickly.