Digital Touch Sensor TTP223B Module (Capacitive Touch Switch)

TTP223B Digital Touch Sensor Module is a capacitive touch switch that detects touch input without mechanical pressure. Ideal for Arduino projects, DIY electronics, and smart touch control systems.

Technical Specifications:

1. Operating Voltage: 2.0V – 5.5V DC
2. Output Type: Digital (Active HIGH)
3. IC Used: TTP223B
4. Response Time: 60ms (touch mode)
5. Output State:
   • HIGH when touched
   • LOW when untouched
6. Touch Type: Capacitive sensing (no physical contact required)
7. Indicator: Onboard LED for touch status
8. PCB Dimensions: Approx. 24mm × 24mm
9. Output Pin Configuration: VCC, GND, OUT

The TTP223B Digital Touch Sensor Module is a compact capacitive touch switch that replaces traditional mechanical buttons. It senses touch or proximity through its touch-sensitive pad and outputs a digital HIGH signal when touched.

This module uses the TTP223B capacitive touch IC, which ensures high sensitivity, fast response, and excellent stability. The sensor can be triggered even through non-metallic materials like plastic, glass, or paper, making it ideal for hidden or sleek control interfaces.

It’s commonly used in Arduino, ESP32, NodeMCU, and Raspberry Pi projects for creating touch-based inputs, switches, and control panels. The onboard LED indicates touch detection status, providing easy debugging and visualization.

🧠 Features:

1. Capacitive touch sensing (no mechanical movement)
2. Stable, fast, and durable touch response
3. Low power consumption and high sensitivity
4. Works through non-metallic surfaces (e.g., plastic, paper)
5. Compact and easy-to-use module
6. Compatible with Arduino, ESP32, and other microcontrollers

📦 Applications:

1. Touch-based on/off switches
2. DIY touch lamp or control panels
3. Smart home automation
4. Touch-sensitive robot controls
5. Hidden or sealed button designs