Touch Capacitive Sensor TTP223

The TTP223 Touch Key Capacitive Sensor Module is a highly reliable and responsive touch-sensitive switch designed to provide a modern alternative to traditional mechanical buttons. Powered by the TTP223 IC, this module detects capacitive touch input with great precision and consistency, making it ideal for various interactive electronic applications.

Its compact size and simple interface make the TTP223 easy to embed in any project, from DIY electronics to professional embedded systems. The module replaces physical button presses with a smooth, touch-activated surface, reducing wear and tear and offering an elegant, high-tech feel. Whether you’re working on Arduino-based automation, ESP32 or Raspberry Pi projects, or custom user interfaces, the TTP223 fits right in.

The touch area is clearly marked and extremely sensitive, capable of detecting input through thin non-metallic surfaces like acrylic, plastic, or glass. This allows you to design hidden or waterproof touch controls for smart home applications, appliances, or interactive exhibits.

With low power consumption in the idle state and fast response times in active mode, it is suitable for battery-powered gadgets. The module operates efficiently on both 3.3V and 5V systems, providing wide compatibility. It comes with a digital output (active high) and can be modified to toggle output mode or change sensitivity by adjusting onboard components.

The onboard LED indicator helps with debugging and shows the sensor’s activation status. Its versatile features, ease of use, and compact footprint make the TTP223 a must-have for modern electronics design.

Shop now at eleberric.com for authentic, high-quality modules with fast local delivery and trusted service.

Specifications

• Operating Voltage: 2V – 5.5V DC

• Output Signal: Digital HIGH when touched (default active high)

• Response Time: ~60ms (touch), ~220ms (release)

• Power Consumption: Extremely low in standby mode

• Interface: 3 pins (VCC, GND, OUT)

• Touch Type: Capacitive, single-touch input

• Output Mode: Momentary by default (can be modified to toggle)

• PCB Size: 15mm x 11mm

• Mounting Hole Diameter: 2mm

• Output Drive: Suitable for driving digital logic or transistor switching

• Weight: ~1g

Key Features

• Touch-Sensitive Input: Replaces mechanical buttons with sleek touch input

• Modern Interface: Sleek design with no moving parts

• Low Power Usage: Ideal for battery-powered and portable applications

• Quick Response Time: Fast touch detection with minimal lag

• LED Status Indicator: Visual confirmation of activation state

• Compact Design: Fits easily into enclosures and panels

• Customizable Settings: Adjust mode and sensitivity with minimal hardware changes

• Wide Compatibility: Works with Arduino, Raspberry Pi, ESP8266, ESP32, and more

• Non-Metallic Surface Detection: Works through acrylic, plastic, or glass

Applications

• Smart home control panels

• Touch-activated light switches

• Interactive art installations

• Hidden or waterproof control systems

• Wearables and portable electronics

• Educational electronics projects

• DIY robots and toys

• Capacitive keypads and digital locks