Touch sensors are electronic devices that detect touch or proximity without the need for physical contact. They work on the principle of capacitive sensing, where changes in capacitance are used to detect touch or the presence of a conductive object near the sensor.
The TTP223 Touch Key Module and TTP223B Capacitive Single Touch Sensor Module are examples of touch sensors commonly used in various applications. These modules feature a single touch-sensitive pad that can detect touch or proximity, triggering a response from connected circuitry. They are often used in projects where a simple touch interface is needed, such as touch-controlled switches, interactive displays, and proximity sensors. These modules are compact, easy to integrate, and offer reliable touch detection, making them popular choices for DIY electronics enthusiasts and professionals alike.
