Touch Sensor Module

The TTP223 Touch Sensor Module is a capacitive touch detection module designed to replace traditional mechanical buttons. It uses the TTP223 IC to sense human touch through conductive materials, providing a stable and reliable digital output.
This module operates on 2V–5.5V DC, making it compatible with most microcontrollers such as Arduino, ESP8266, ESP32, STM32, and Raspberry Pi (with level compatibility). When the touch pad is pressed, the output pin changes state, allowing easy integration into digital input applications.
The TTP223 module features low power consumption, high sensitivity, and fast response time. It can be configured for momentary or toggle output modes by soldering onboard jumpers, making it suitable for a wide range of projects including touch lamps, smart switches, IoT devices, and automation systems.
🔹 Key Features
Capacitive touch sensing (no mechanical wear)
Based on TTP223 IC
Operating voltage: 2V – 5.5V
Digital output (HIGH/LOW)
Supports momentary and toggle modes
Low power consumption
Compact and easy to use
Breadboard and PCB friendly
🔹 Pin Description
VCC – Power supply
GND – Ground
OUT – Digital output signal
🔹 Applications
Touch-based switches
Arduino & ESP projects
Smart home automation
Touch lamps & panels
IoT and DIY electronics
Button replacement projects