TTP223B Digital Capacitive Touch Sensor Module – Smart Touch Switch for Modern Electronics

The TTP223B Touch Sensor Module from Geekcreit is a reliable and versatile digital touch-activated switch designed for modern electronics projects. Using capacitive sensing technology, the module detects finger touches without mechanical contact, providing a wear-free, highly reliable switching solution.

Unlike traditional push buttons, the TTP223B offers stable digital output and can operate in either momentary mode (active only while touched) or toggle mode (switches state on each touch). This flexibility makes it perfect for DIY electronics, smart home applications, and robotics projects.

Its compact size, low standby current, and high sensitivity allow it to be used in Arduino (https://electroway.org/product-category/arduino-and-accessories/arduino-boards/), NodeMCU (https://electroway.org/product-category/iot-and-smart-solutions/iot-modules/nodemcu/), or Raspberry Pi (https://electroway.org/product-category/electronic-accessories/mounts-and-cases/raspberry-pi-mounts-and-cases/) projects for touch-activated control of LEDs, relays, motors, or other electronics.

Key Technical Specifications

• Model: TTP223B

• Operating Voltage: 2.0 – 5.5V DC

• Output: Digital High/Low

• Modes: Momentary / Toggle (selectable)

• Current Consumption: Ultra-low standby (<3µA)

• Response Time: <100ms

• Indicator LED: Onboard LED for output status

• Interface: 3-pin header (VCC, GND, OUT)

• Dimensions: 18 × 22 × 4 mm (approx.)

Key Features

1. Capacitive Touch Activation: No mechanical parts, reducing wear and tear.

2. Selectable Modes: Toggle or momentary mode for versatile project applications.

3. Low Power Consumption: Ideal for battery-powered devices.

4. Fast Response: Less than 100 milliseconds for real-time control.

5. Compact & Lightweight: Easy integration in tight spaces or enclosures.

6. Compatible with Microcontrollers: Works seamlessly with Arduino, NodeMCU, and Raspberry Pi.

Applications

The TTP223B module is perfect for:

• Home Automation: Touch-controlled lights, fans, doors, or appliances.

• DIY Electronics: Switch LEDs, motors, or relays in microcontroller projects.

• Robotics: Trigger actions or control actuators with touch input.

• IoT Projects: Integrate with Arduino or NodeMCU for smart touch interfaces.

• Consumer Electronics: Replace mechanical buttons in panels or gadgets.

For other electronics components, visit:

• Electronics Components: https://electroway.org/product-category/electronics-components/

• Arduino & Accessories: https://electroway.org/product-category/arduino-and-accessories/

• Tools & Accessories: https://electroway.org/product-category/tools-and-accessories/

Precautions & Usage Guidelines

• Avoid touching the module with wet hands to prevent false triggers.

• Keep the module away from high-frequency interference sources.

• Ensure voltage supply does not exceed 5.5V DC.

• For longer cable connections, use shielded wires to maintain signal stability.

• Mount the module securely to prevent movement that can trigger false touches.

YouTube Tutorial Video

Watch Video:https://www.youtube.com/shorts/LW-0jf8CxIU

4. Product Summary

The TTP223B Capacitive Touch Sensor Module by Geekcreit is a compact, low-power, fast-response touch switch suitable for Arduino, NodeMCU, Raspberry Pi, and other DIY electronics projects. Its capacitive touch detection ensures a reliable, long-lasting alternative to mechanical buttons, ideal for home automation, robotics, and IoT applications.