Touch Sensor Switch Module is a capacitive touch input board that works like a button—just touch the pad to trigger an output signal. It’s ideal for modern touch controls in smart home devices, lamps, appliances, DIY electronics, and microcontroller projects. Compared to mechanical buttons, it offers silent operation, longer life, and a clean user experience.

Key Features

• Capacitive touch activation (touch to switch)

• Works as a digital touch button (ON/OFF signal output)

• Fast response and stable sensitivity

• Long life (no mechanical wear)

• Easy to use with Arduino, ESP32, ESP8266, STM32, etc.

• Compact module size for embedded designs

Full Specifications (Typical)

Exact values may vary depending on the module model (TTP223 or similar).

Electrical

• Operating Voltage: typically 2V–5.5V (commonly 3.3V/5V compatible)

• Output Type: Digital output (HIGH/LOW)

• Output Mode:

  • Momentary (active only while touched) or

  • Toggle (touch to ON, touch again to OFF) — module dependent / jumper options

• Current Consumption: low power (ideal for battery devices)

Module Pins (Common)

• VCC – power input

• GND – ground

• OUT / SIG – digital output signal

Touch Operation

• Touch pad can be used directly or through a thin non-metal cover (plastic/glass)

• Sensitivity depends on pad size, wiring, and mounting surface

Applications

• Touch lamps and LED control

• Smart switches and home automation panels

• DIY appliances and control boxes

• Door access panels and user interfaces

• Arduino/ESP32 touch input projects

• Interactive projects and educational kits

Used In

• ESP32/Arduino projects (touch as a button input)

• Relay control (through transistor/relay module)

• IoT devices and smart furniture controls

Package Includes

• 1× Touch Sensor Switch Module