The TCRT5000 is an IR sensor unit. It has both a Photodiode and a Phototransistor coupled in its package. The photo diode has two pins (Anode and Cathode) which can be used to generate an IR signal. Similarly the Photo transistor also has two pins (Collector and Emitter) which can be used to read the IR signal that is reflected back. This sensor can be used to detect the presence of object or any other reflective surface in front it, also with some level of programming it can also calculate the distance of the object in front it. But the distance can only be calculated for short range objects and is also subjected o environmental disturbance. So if you look for a sensor to measure distance of an object in front of it you should try the HC-SR04 Ultrasonic sensor.
Other than that this sensor is perfect for detecting the proximity of an object in front of it. It can also easily distinguish between black and white colour hence widely used in line following and maze solving robots.
- IR sensor with transistor output
- Operating Voltage: 5V
- Diode forward Current: 60mA
- Output: Analog or digital data
- Transistor collector current: 100mA (maximum)
- Operating temperature: -25°C to +85°C