TCRT5000 IR Sensor
The TCRT5000 is a reflective sensor that includes an infrared emitter and phototransistor in a leaded package that blocks visible light. The package includes two mounting clips. This sensor is often used for line-follower robots. TCRT5000 Reflective Optical Sensor IR Infrared Switch is perfect for line tracking robot car like DIY projects
When the infrared transmitter emits a beam of light to a piece of paper, if the rays shine on a white surface, they will be reflected and in turn, be received by the Infrared detector, and pin S on the module will output a low-level; If the beam of light encounters a black line, they will be absorbed, thus the Infrared detector gets nothing, and pin S will output a high level. So this module basically acts like a simple switch when it gets close to a white/black object. You can adjust the sensitivity with the potentiometer on the module.
Applications of TCRT5000 IR Sensor:
- Position sensor for shaft encoder.
- Detection of reflective material such as paper, IBM cards, magnetic tapes, etc.
- Limit switch for mechanical motions in VCR.
