product description:
1, the use of TCRT5000 infrared reflective sensor
2, detection of reflection distance: 1mm ~ 25mm, and the central point is about 2.5 mm
3, the comparator output, the signal clean, good waveform, driving ability, more than 15mA.
4, with the potentiometer to adjust the sensitivity
5, the working voltage of 3.3V-5V
6, the output form: digital switch output (0 and 1)
7, with a fixed bolt hole, easy to install
8, small board PCB size: 3.2cm x 1.4cm
9, the use of wide voltage LM393 comparator