Description
High Quality 4 PIN Infrared Speed Sensor Module
Module Description
1. Working voltage: 3.3–5.5V
2. The use of imported groove coupler sensor, the groove width of 5mm.
3. The sensor slots are blocked, the output high and the light is off; no shelter, output low and lights.
4. Output form: Digital switching output (0 and 1)
5. Using LM393 comparator output, type clean, good waveform, driving ability over 15mA.
6. A fixed bolt hole for easy mounting.
Module interface specification (3-wire)
1 VCC 3.3V-5V external
2 GND External GND
3 DO small board digital output interface switch connected to the microcontroller IO port
4.AO: Invalid
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