Tag Archives: TCRT5000

Using a TCRT5000 sensor with your Arduino

You need to know if an object is close to another one but without using a contact switch? The TCRT5000 sensor is a great and cheap option for that! It essentially consists into 2 parts bundled together: an infrared emitter and a photo-transistor.   Drawing 1: No object close to sensor Drawing 2: An object is close to the sensor,… Read more »