module Hall Sensor Velocity Count sensor LM393 3144

Description of one module:
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1. Size: 2.7cm *1.4mm
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2 Main chip: LM393, 3144 Hall sensor
3 Working voltage:  5 volts
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Two-module interface Description (4-wire system)
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1 VCC external 5V voltage
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2 GND External GND
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3 DO board digital output interface (0 and 1)
Three module features:
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1, with power indicator and signal output indication.
2, single signal output.
3, the module has no trigger, low output level; Module has trigger, output high level.
4. Adjustable sensitivity (fine adjustment).
5, there is a magnetic field cutting signal output.
6, circuit board output switching quantity, can be directly connected to the MCU or the store relay module, buzzer module, etc.
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7, can be used for motor speed measurement/position detection and other occasions.