Difference between revisions of "5.8GHz Doppler Effect Microwave Motion Sensor SKU: CQRSENWB02"
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In addition, we suggest that you use battery power to ensure the best detection effect when you are operating the product. | In addition, we suggest that you use battery power to ensure the best detection effect when you are operating the product. | ||
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| + | =='''AT5820 Overview'''== | ||
| + | The 5.8GHz radar SOC chip supports communication with the HOST through the UART interface, including program download, command control and debugging instructions. This article mainly introduces the communication protocol format of AT5820 and the description of each command. | ||
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| + | '''Communication protocol definition''' | ||
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| + | The frame data of the communication protocol is mainly divided into control frame data and reply frame data. The control frame is the frame data format of the control command sent by the host computer to the AT5820 SOC, and the reply frame is the reply to the host computer after the AT5820 SOC executes the command controlled by the host computer. Frame data format. The detailed frame data format is described below. | ||
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Revision as of 02:48, 5 December 2022
Description
The microwave motion sensor is a microwave moving object detector which is designed according to the principle of Doppler Radar. This differs from the method used by a regular infrared (IR) sensor as microwave is sensitive to a variety of objects that are microwave-reflective, and its sensor readings are not affected by the ambient temperature.
Comparison with IR Sensor:
CQRobot launches 5.8GHz Doppler effect microwave motion sensor (CQRSENWB02), built-in sensor - AT5820 microwave radar chip. The AT5820 chip integrates a high-performance microwave radar transceiver and MCU, which can be interconnected with other main controllers or sensors, and filter out clutter interference through algorithms. It is not only widely used in human body detection, but also widely used in the detection of many other objects. With the characteristics of long distance and high sensitivity, it is not limited by the ambient temperature. It is used in industry, transportation, industry, agriculture, smart home, security monitoring and other fields.
The detection objects of the microwave sensor are universal. When it comes to the actual use in life, we will usually match it with another sensor for targeted detection. For example, a combination of microwave sensor and infrared pyroelectric sensor. It can accurately judge whether someone is passing by without being disturbed by sunlight and clothing color, and will not react to other objects.
Attention
There is an ultra-high frequency MOS device inside the microwave motion sensor. When you are testing, please use battery power as much as possible to avoid breakdown that is caused by the static voltage difference between the power supply and the test equipment, such as an oscilloscope.
In addition, we suggest that you use battery power to ensure the best detection effect when you are operating the product.
AT5820 Overview
The 5.8GHz radar SOC chip supports communication with the HOST through the UART interface, including program download, command control and debugging instructions. This article mainly introduces the communication protocol format of AT5820 and the description of each command.
Communication protocol definition
The frame data of the communication protocol is mainly divided into control frame data and reply frame data. The control frame is the frame data format of the control command sent by the host computer to the AT5820 SOC, and the reply frame is the reply to the host computer after the AT5820 SOC executes the command controlled by the host computer. Frame data format. The detailed frame data format is described below.
