HW-M09 microwave sensor module

Detail：

This product is automatic induction control of Doppler radar products.High sensitivity, long  distance detect, high reliability, big detect angle. Also the power supply voltage is range.It is widely used in all kinds of human body induction lighting, anti-theft alarm situations.

HW - M09 USES planar antenna is the transmission and reception, as the active sensor. The sensor transmit high frequency electromagnetic wave and receive echo. HW - M09 detecting changes in the echo inside even small movement. Then microprocessor triggers, executes instruction . Signal can be detected through glass, doors or thin wall. 

Features：

1.Strong anti-interference ability, stable performance, not influenced by environmental temperature.

2 .Small size, simple installation. Quick response and high sensitivity.

3. Induction distance can also customize, the detection angle is 180 x 360

4 .Radar wave can penetrate non-metallic objects, such as wood, glass, plastic, fabric, etc

Technical parameters：

Warm note：

1, Strictly prohibited to operate in charge to avoid any mistake, such as burn out circuit or get an electric shock.

2, Avoid installed in the rain, to prevent damage or affect the lifetime.

3: Better install far away from the place of the magnetic field or the conductor to avoid wrong actions

Picture for your reference:

Note:

The resistor value more,the distance larger.

The resistor value more,the delay time longer.

Product inspection wiring diagram and CAD drawing

VCC can supply DC-6V-24V, JP is M09 output port, 2 intermediate output high level signal, when 2 feet output high level, NPN tube 8050 is turned on, VCC will supply power to LED, LED is bright state at this time, Indicates that the module has a signal output. When there is no signal output on pin 2, the output is in the no-signal state 0V. To test the performance of this product, you can wire it separately as shown above. This signal can be triggered later: trigger circuit - MOS tube - thyristor - relay - MCU and so on.

Angle and radiation pattern

As shown in the figure: the reference picture is obtained by the measuring instrument, and the actual sensing area is in the range of 100 square meters in the room. Due to the close relationship between microwave and space in Doppler radar, the actual application needs to define the detection range and angle according to the application environment (the smaller the microwave detection range is, the higher the sensitivity is, and the larger the space is, the sensitivity is relatively attenuated). This figure serves as an official guide reference, and the actual application needs to be tested according to the use environment.

Precautions:

●About the installation process requirements of the product

When installing and testing the product, please keep the antenna board (S-shaped open PCB) of the module product at least 10mm in front of it, and never touch or touch the plane of any object, otherwise the product will not work properly.

●About the power supply

It is recommended to use qualified DC stabilized power supply, that is, DC power supply with output voltage, current and ripple coefficient, etc., otherwise it will affect the stability of this product, and some abnormalities may occur, such as: false alarm, no induction. , loop self-start, and so on.

●About false positives

1. To ensure the eligibility of the power supply, please refer to the first item above;

2. During the test, ensure that there are no moving objects around the product to be tested (within the sensing range);

3, about 30s initialization time after power-on, during this period is abnormal induction, may cause false positives;

4. In the indoor test, the induction is relatively sensitive, the surrounding needs to be static, and the next test signal cycle is completed before the next test; when testing outdoor, be sure to pay attention to the dynamics of the surrounding environment, such as birds, Pedestrians, vehicles, etc.;

5. The signal current output by this module is very weak. When the load is directly driven, it will also cause false alarms. Please refer to the application diagram of this product for connection.

●Adjustment of working delay

There is a [time] resistor on the back of the module to change the delay time. The larger the resistance, the longer the delay.

●Adjustment of sensing distance

There is a [distance] resistor on the back of the module to change the distance of the sensing. The larger the resistance, the farther the distance. The adjustable range is 150K-2M.

Note: This resistance value is greater than 2MΩ, which will make the circuit unstable! Customers are advised not to change this resistor easily. If necessary, please contact our relevant staff.

●The outer shell assembly of this product

The metal casing is not easily penetrated by microwaves and infrared rays, so this product should be avoided from being installed in a metal casing. However, such as plastic, ceramic, woody soil obstacles, the penetration effect is better. For details, please take the test as the standard.

●The mutual harmony of this product

This product has a certain mutual resonance interference, so in the effective sensing range, try to avoid two or more modules installed face to face, otherwise, it may affect your use. Please contact our relevant staff if necessary.

Technical parameters：