Smart Electronics F249 4 PIN Infrared Speed Sensor Module for arduino/51/AVR/PIC 3.3V-5V Raspberry Pi


Purpose:
Widely used in motor speed detection, pulse counting, position limit and so on.
Module features:
1, the use of imported groove coupler sensor, slot width 5mm.
2, output status indicator lamp output high, output low lights.
3, block, output high; no shelter, output low.
4, the comparator output signal clean, good waveform, driving ability, than 15mA.
5, the working voltage of 3.3V-5V
6, the output format: digital switching output (0 and 1)
7, a fixed bolt holes for easy installation
8, small PCB board size: 3.2cm x 1.4cm
9, using a wide voltage comparator LM393
Product wiring instructions:
1, VCC positive power supply 3.3-5V
2, GND power supply is negative
3, DO TTL switching signal output
4, AO this module does not work
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