TTP223B Digital Capacitive Touch Sensor Switch Module Compatible with Arduino and Raspberry Pi

Product Description

The module is based on a touch-sensing IC, the TTP223B capacitive touch module. In the normal state, the module outputs low and consumes little power. When a finger touches the corresponding position, if not touched for 12 seconds, the output switches to power mode.

The module can be applied to non-metallic surfaces such as plastic or glass. You can place a thin non-metallic paper layer over the module surface; by pressing the correct location, the module can be hidden inside walls, computers, and other buttons.

It features low power consumption. A green indicator LED lights up when the power is on. It can be used as both positive and negative touch surfaces, replacing a traditional mechanical button.