Replace your traditional mechanical buttons with the modern, wear-free TTP223 Capacitive Touch Sensor Module. Driven by the responsive TTP223 touch detector IC, this single-channel board acts as a solid-state digital switch that triggers instantly upon proximity or contact. Because it measures variations in electrical capacitance, it can detect human touch even when hidden behind glass, plastic, acrylic, or wooden surfaces. This makes it an indispensable choice for waterproof panels, hidden smart home switches, clean room automation, and sleek interactive project enclosures.Â
Key Product Features
- Hidden Through-Body Activation: Detects touch through thin non-conductive panels (up to 3mm thick), keeping your electronics sealed away from dust, water, and debris.Â
- Onboard Solder Jumpers (A & B): Features dual configuration solder pads to easily toggle between latching/momentary modes and active-high/active-low output states.Â
- Universal System Voltage: Natively supports power inputs from 2.0V to 5.5V DC, letting you interface directly with an Arduino, Raspberry Pi, ESP32, or MSP430 without logic shifters.Â
- Zero Mechanical Wear: Lacks physical moving parts, eliminating the mechanical fatigue and contact bounce common with old tactile push-buttons.Â
- Visual Calibration Feedback: Integrated with a bright onboard red SMD LED that illuminates immediately when the sensing pad is triggered.

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