The TTP223 Capacitive Touch Sensor Module is a compact, digital touch switch that replaces mechanical buttons. It detects finger touch through capacitive sensing and outputs a stable HIGH/LOW signal, suitable for Arduino, Raspberry Pi, NodeMCU, and DIY electronics projects.
The TTP223B Capacitive Touch Sensor Module is a compact digital touch switch that replaces mechanical buttons with a non-contact capacitive sensor. It offers fast response, toggle or momentary modes, low power consumption, and is compatible with Arduino, Raspberry Pi, NodeMCU, and other microcontroller platforms. Ideal for DIY electronics, robotics, IoT, and home automation projects.