Reed Sensor Module Magnetron Module Reed Switch Magnetron SwitchItem NO.: MK00819

Reed Sensor Module

Purpose:

Program-controlled switches, copiers, washing machines, refrigerators, cameras, disinfection cabinets, door magnets, window magnets, electromagnetic relays, electronic scales, liquid level gauges, gas meters, water meters, etc. have all been well applied.

Module features:

1. Adopting imported normally open reed tubes

2. Comparator output, clean signal, good waveform, strong driving ability, exceeding 15mA.

3. Working voltage 3.3V-5V

4. Output form: Digital switching output (0 and 1)

5. Equipped with fixed bolt holes for easy installation

6. Small PCB size: 3.2cm x 1.4cm

7. Using a wide voltage LM393 comparator

The characteristics of reed pipes:

Dry reed tube, also known as dry reed tube, is a passive electronic switching element with contacts. It has the advantages of simple structure, small size, and easy control. Its outer shell is usually a sealed glass tube, which contains two iron elastic reed plates and is filled with an inert gas called rhodium. Usually, the two reeds made of special materials in the glass tube are separated. When a magnetic substance approaches a glass tube, under the action of magnetic field lines, the two reeds inside the tube are magnetized and attracted to each other, causing the reeds to pull together and connect the circuit connected to the node. After the external magnetic force disappears, the two springs separate due to their own elasticity, and the circuit is also disconnected. Therefore, as a circuit switching device that utilizes magnetic field signals to control, reed tubes can be used as sensors for counting, limiting, and so on (mainly used in the production of door magnets and window magnets in security systems), and are also widely used in various communication devices. In practical applications, magnets are usually used to control the connection or disconnection of these two metal plates, hence they are also known as "magnetrons".

Module usage instructions:

1. The reed tube needs to be used in conjunction with a magnet. When a certain magnetic force is sensed, it will be in a conductive state, and the module will output a low level. When there is no magnetic force, it will be in a disconnected state, and output a high level. The sensing distance between the reed tube and the magnet is within 1.5cm, which is insensitive or there will be no triggering phenomenon;

2. The DO output end of the module can be directly connected to the I/O port of the microcontroller, and the triggering status of the reed tube can be detected through the microcontroller;

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

Shipping list:

1 reed sensor module