5.8G frequency 220V microwave induction module

1. Product Overview:

HW-XC202 is the earliest AC load type microwave induction module introduced by our company. It has exquisite appearance, simple and compact product circuit structure, stable performance and cost-effective, high cost performance, especially suitable for intelligent appliances, security products, lighting Second development of products and other electronic fields. This product can be widely used in security monitoring, intelligent control systems, lighting appliances (garages, corridors, roads and other places).

2. Product working principle:

The HW-M21-2 microwave induction module uses a planar antenna to transmit and receive high-frequency electromagnetic waves based on the Doppler effect principle, and then detects a slight movement change in the return wave, and then triggers the microprocessor to work. Finally, the AC relay makes 220v / L conduction with AC load circuit to 220v / N.

3. Product Features:

Professional flat microstrip antenna design, field-shaped signal transmission and reception, wide coverage and high consistency, low power consumption, ROHS environmental protection, and strong anti-interference ability, not affected by temperature, humidity, airflow, dust, noise, light and dark.

When this product is used indoors, the sensing effect is better; when it is used outdoors, the sensing distance is slightly reduced or the sensitivity is slightly weak. This is a normal phenomenon, and users do not have to question the product.

1. Product Specifications: 

5.Induction time:

Default repeatable trigger: If the trigger signal is triggered again for the first time, the module delay time will be superimposed again when the first trigger time is not stopped (such as: the module trigger time is 2S, and it will be accepted again within 2S) To the induction signal, superimpose 2S again, and there will always be an output signal when triggering continuously. Non-triggerable triggering: Induction triggers once and no time overlaps (such as: time 2s, trigger once, output 2s, within 2s) Regardless of multiple triggers are considered invalid, the time is not superimposed and maintained for 2s).

9. Note:

● About the installation process requirements of the product

During the product installation test and actual assembly, please keep at least a 10mm space in front of the antenna board (S-shaped opening PCB) of the module product. It must never be close to or touch the plane of any object, otherwise the product will not work properly.

●About Power

It is recommended to use a qualified AC220V power supply.

● About false positives

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

2. When testing, make sure there are no moving objects around the product to be tested (within the sensing range);

3. There is an initialization time of about 10s after power on. During this period, it is an abnormal induction, which may cause false positives;

4. In the indoor test, the induction is relatively sensitive, and the surroundings need to be static, and the next test should be performed after the first induction signal period is over. When outdoor testing, you must pay attention to the dynamics of the surrounding environment, such as flying birds, Pedestrians, passing vehicles, etc .;

● Adjustment of working delay

A [VR] resistor is soldered on the back of the module to change the delay time.

● Induction distance adjustment

There is a [VR] resistor on the back of the module, which is used to change the sensing distance.

● The shell assembly of this product

The metal case is not easily penetrated by microwaves and infrared rays, so this product should be avoided to be installed in the metal case. However, obstacles such as plastic, ceramic, and woody soil have better penetration effects. For details, please refer to the test.

● Mutual harmony of this product

This product has certain mutual resonance interference, so within the effective induction range, try to avoid installing two or more modules face to face, otherwise it may affect your use effect. If necessary, please contact our relevant staff.