TCRT5000 sensors continuously emit infrared infrared emitting diodes, infrared rays emitted when not being reflected back or reflected back but the strength is not big enough, the phototransistor has been in a shutdown state, then the output modules is high, indicating diode remains off state; when the object appeared to be detected within the detection range of the infrared is reflected back and the intensity is large enough, the phototransistor saturated, then the output of the module is low, indicating the diode is lit.
- TCRT5000 IR reflex sensors
- Detecting the reflected distance: 1mm ~ 25mm applicable
- Sensitive to black and white color surfaces
- Comparator output signal clean wave well, driving ability, than 15mA.
- with multi-turn precision potentiometer adjustable sensitivity adjustment
- The power indicator light (red) and digital switch output indicator light (green)
- Rated voltage and 3.3V-5V
- The output format: digital switching output (0 and 1)
- a fixed bolt holes for easy installation
- Small Board PCB dimensions: 3.2cm x 1.4cm
- Use wide LM393 voltage comparator
Applications of TCRT 5000 Line Tracking sensor Module:
- Line Following Robot (black and white line detection)
- Meter pulse data sampling
- Detection of reflective material such as paper, IBM cards, magnetic tapes etc (fax paper shredders detection)
- General purpose – wherever the space is limited (obstacle detection)
Wiring
| Label | Meaning | Connection |
| VCC | Power source | Connect to 3.3V or 5V of system |
| GND | Ground | Connect to GND of system |
| DO | Digital Output | Connect to any digital IO pin (0 and 1) |
| AO | Analog Output | Connect to analog input pin (0 to 5 V) |
