Learn how to create a touch-free interface using an Arduino Capacitive Touch Sensor in this 31-minute tutorial. Explore the CAP1188 component, a cost-effective solution for implementing contactless input in various projects, including escape rooms and public-facing Arduino interfaces. Discover the sensor's capabilities, including its ability to detect objects up to 15cm away without physical contact. Gain insights into wiring and coding the sensor for Arduino, ESP32, or other microprocessors using I2C interface. Cover topics such as hardware overview, interfaces, setup, reading registers, and input behavior. Master the technique of increasing sensor sensitivity through code to enable touch-free detection of hands, metallic objects, or other capacitive items.