Digital Sensor TTP223B Module Capacitive Touch Switch

Digital TTP223B Capacitive Touch Sensor Module – Smart Touch Switch

The TTP223B Capacitive Touch Sensor Module is a compact and reliable digital touch switch designed for easy human-touch input. Instead of using traditional mechanical push buttons, this module detects touch using capacitive sensing technology, making it more durable and stylish for modern electronic projects.

This module normally stays in a low-power standby mode and outputs a LOW signal. When you touch the marked circular sensing pad, the module instantly switches state and outputs a HIGH signal. If no touch is detected for about 12 seconds, it automatically returns back to low-power mode.

The TTP223B sensor can also work through non-metallic surfaces like acrylic, glass, or plastic, allowing you to create hidden or seamless touch-activated panels on walls, tables, enclosures, or project cases.

Touch Sensor Interface

• GND – Ground

• VCC – Power Supply (2–5.5V DC)

• SIG – Digital Output Signal

It also features a power indicator LED, convenient mounting holes, and a clearly marked touch area similar to a fingerprint icon for easy operation.

Features

• Capacitive touch-based digital switch

• Low power consumption

• Operates from 2V to 5.5V DC

• Can replace conventional push buttons

• Works even through thin non-metallic covers

• Four mounting holes for easy installation

• Output sink current (~8mA @3V)

• Output pull-up current (~4mA @3V)

Applications

• Smart touch switches

• Home automation

• DIY electronics

• Interactive projects

• Hidden control panels

• Touch-based input systems

Package Includes

• 1 x TTP223B Digital Capacitive Touch Sensor Module

Note: The images shown are for representation only. The actual product may slightly vary in appearance.