1. using imported normally open reed switch

2. the comparator output, the signal is clean, the waveform is good, the driving ability is strong, more than 15mA.

3. working voltage 3.3V-5V

4. output form: digital switch output (0 and 1)

5. with fixed bolt holes for easy installation

6. small board PCB size: 3.2cm x 1.4cm

7. using a wide voltage LM393 comparator

Reed Switch Sensor Module Magnetron Module is the abbreviation of dry reed pipe. It is a passive electronic switch component with contacts. It has the advantages of simple structure, small size and easy control. The outer casing is usually a sealed glass tube. There are two iron elastic reed plates, which are also filled with an inert gas called metal crucible. In normal times, two reeds made of special materials in the glass tube are separated. When a magnetic substance is close to the glass tube, under the action of the magnetic field lines, the two reeds in the tube are magnetized to attract each other, and the reeds are attracted together to connect the circuit connected to the node. After the external magnetic force disappears, the two reeds are separated due to their own elasticity, and the circuit is broken. Therefore, as a line switching device controlled by a magnetic field signal, the reed switch can be used as a sensor for counting, limiting, etc. (mainly used for the production of door magnets and window magnets in security systems), and also It is widely used in various communication devices. In practice, the permanent magnets are usually used to control the on or off of the two metal sheets, so they are also called “magnetrons”.

1. The Reed Switch Sensor Module Magnetron Module needs to be used together with the magnet. When a certain magnetic force is sensed, it will be in a conducting state. The module outputs a low level. When there is no magnetic force, it is in a disconnected state, and the output is high. The sensing distance with the magnet is less than 1.5cm and is not sensitive or triggering;

2. The output end of the module DO can be directly connected to the I/O port of the single chip microcomputer, and the trigger state of the reed switch can be detected by the single chip microcomputer;

3. The output terminal of the module DO is connected to the IN end of the relay to form a high-power reed switch, which directly controls the high voltage.

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