The linear Hall magnetic module and the digital 13 interface comes with a LED to build a simple circuit to make a magnetic field reminder. Use the LED with the digital 13 interface to connect the linear Hall magnetic sensor to the digital 3 interface. When the linear Hall magnetic sensor senses When there is a key signal, the LED is on, otherwise it is off. Its main chip: LM393, 3144 Hall sensor magnetic induction probe.

? Working voltage:DC5V
? With signal output indication
? The output switch value of the circuit board can be directly connected to the 100 of the single-chip microcomputer
? The output effective signal is low level
? Adjustable sensitivity (fine adjustment)
? Magnetic field induction detection sensitivity is extremely high
? With mounting holes, convenient for fixed installation
? It can be used for motor speed measurement, position detection and other occasions