In addition to the module, the circuit also needs a resistor and an LED indicator, and the module and components are connected according to the circuit diagram. Connect 12V power supply to VCC 12 and GND. After 30 seconds, the module enters the working state and the object moves to the front of the module. The LED stays on for 3 seconds and then goes out. After an interval of 3 seconds, the object moves to the front of the module again, and the indicator lights up again for 3 seconds. After an interval of 3 seconds, you can test again. It should be noted that because the module is not connected with a sensitivity adjusting potentiometer (adjustable resistor), the sensitivity of the module is low in the initial state, and the detection distance will be relatively close. The resistor can be soldered at the R position on the back of the circuit board to improve the sensitivity.

2. Inductive switch circuit (Figure 2):

In addition to the module, the circuit needs four external components. For more information, see the list of components. According to the circuit connection module, turn on the power of VCC 12 and GND. After 30 seconds, someone moved to the front of the module, relay J worked and the contacts closed. After 3 seconds, the relay stops working and the contact is disconnected, which can be used as an inductive switch of electronic equipment. The initial sensitivity of the module is about 2m, and the sensitivity can be adjusted by connecting a 10K potentiometer at G 1(8) and G2(7).

3. Automatic inductive dialing alarm circuit (Figure 3):

Besides MT5 100 induction module, this circuit also needs EX-3 intelligent dialing module and a potentiometer. The potentiometer is used to adjust the induction distance of MT5 100. EX-3(EX- 1, EX-2 can also be used) intelligent dialing module, with a power supply voltage of 5V, which can directly get power from VCC and GND of MT5 100. Turn on the power of MT5 100, and enter the working state after 30 seconds. If something moves in front of the module, the EX-3 intelligent dialing module will immediately dial the preset telephone number. 10K adjustable resistor can adjust the sensing distance. It can also be combined with remote control module to realize remote control operation. Please refer to the data manual of EX-3 intelligent dialing module for specific circuits.

4. Intelligent detector (Figure 4):

This circuit adopts MT5 100 as the auxiliary detection mode of wired infrared detector. Turn on the power. After one minute (the preheating time of the infrared detector), the infrared detector enters the working state. Under normal circumstances, the output contacts A and B of the infrared detector are closed, so that the VCC of MT5 100 is connected to SLEEP, and the SLEEP terminal is at a high level, so that the module enters a sleep state and does not detect the outside world. When the infrared detector senses the signal and acts, the output contacts A and B are disconnected, VCC and sleep are disconnected, and the sleep end becomes low level. MT5 100 exits the dormant state and starts to detect the target that causes the infrared detector to move. If the output conditions are met, a high level is output at the D-OUT terminal, the transistor 2SC8050 turns on the relay to work, and the output contacts A and B are turned off to output an alarm signal. In this application, the normally closed contact of the relay is applied to the output to match the host of the original alarm system. The addition of MT5 100 can effectively filter the interference caused by air flow and temperature, and improve the reliability of the infrared detector.

5. Application of F-out terminal (Figure 5):

The F-OUT terminal is the low-frequency signal output terminal of the module, and outputs the amplified and shaped analog signal (see the working principle description), which is the original analog signal of the microwave sensing module MS60 1/70 1. It can be connected with single chip microcomputer or other digital processing circuits to realize more targeted applications and increase the application flexibility of modules. In application, referring to the connection mode in Figure 5, the power supply system of the module directly supplies power to the MCU or digital processing system. F-OUT outputs the shaped square wave signal (inverted signal, high level when there is no signal). The faster the object moves, the higher the frequency of the square wave and the narrower the pulse width. Single chip microcomputer system can identify the target according to the frequency and number of pulses. 10K potentiometer is used to adjust the amplification gain. See the left figure for the signal form.

Packing size