The TTP223 Capacitive Touch Sensor Module is a simple and reliable touch-sensitive switch module based on the TTP223 touch-sensing IC. It detects a human touch on the sensing pad and provides a digital output, making it ideal for replacing conventional push buttons in electronic projects.

Features

• Capacitive touch sensing
• Based on TTP223 touch sensor IC
• Touch-sensitive activation
• Digital output signal
• Low power consumption
• Simple 3-pin interface
• Built-in touch pad
• Compact PCB design
• Easy to interface with Arduino and microcontrollers

Specifications

Pin Configuration

Working

When the touch pad is touched, the module detects the change in capacitance and changes the state of the I/O output. The output can be connected directly to a microcontroller digital input or other compatible control circuit.

Applications

• Touch switches
• Arduino projects
• DIY electronic projects
• Smart lighting controls
• Touch-operated appliances
• Robotics projects
• Home automation
• Interactive displays
• Push-button replacement

Advantages

• No mechanical moving parts
• Long operating life
• Simple interface
• Low power consumption
• Easy to use with microcontrollers
• Compact and lightweight
• Fast touch response

Size

Approx. 24 × 24 mm

Package Includes

• 1 × TTP223 Capacitive Touch Sensor Module

Note

The module is designed for low-voltage DC operation. Keep the touch area and PCB clean and avoid placing conductive objects very close to the sensing pad, as they may affect touch detection.