TCRT5000 infrared sensor emits infrared emitting diode continuously when no infrared rays emitted or reflected back is reflected back but the strength is not large enough, the phototransistor has been in the off state, and the output terminal of the module is high, indicating that the diode has been in the off state; in the object to be detected within the detection range, and the intensity of the reflected infrared rays is large enough, phototransistor saturated, and the output terminal of the module is low, the indicator LED is lit.
Using infrared reflection sensors TCRT5000
Test reflection distance: 1mm to 25mm
Clean and 3, the comparator output, signal waveform,
driving ability is strong, for more than 15 ma.
With many adjustable precision potentiometer to adjust sensitivity
The working voltage of 3.3V to 5V
Output form: digital switch output (0 and 1)
Has a fixed bolt hole, convenient installation
Small board PCB size: 3.2cm x 1.4cm
The LM393, use of wide voltage comparator
The electricity meter pulse data sampling; Fax machine, shredder paper detection; Obstacle detection; Black and white line detection.