Ocean: 5.8GHz Doppler Effect Microwave Motion Sensor for Arduino and Raspberry Pi

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.

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.

Wiki: http://www.cqrobot.wiki/index.php/5.8GHz_Doppler_Effect_Microwave_Motion_Sensor_SKU:_CQRSENWB02

SPECIFICATION

5.8GHz Doppler Effect Microwave Motion Sensor

• Working Voltage: DC5V
• Operating Frequency: 5.8GHz
• Radar Main Chip: AT5820
• Transmit Power: -5dBm to 0dBm
• Power Consumption: 33mA
• Baud Rate: 115200bps
• Beam Angle: 120 Degrees
• Operating Temperature: -40 Degree Celsius to +85 Degree Celsius
• Output Signal: High and Low Level or PWM
• Communication Interface: UART Serial Port
• Detection Distance: Indoor Hanging Height 3 Meters, Sensing Radius 5 Meters
• Dimension: 34.5mm * 26.7mm
• Mounting hole size: 3.0mm

Ocean Wire Specifications

• Cable Specifications: 22AWG
• Material: Silicone
• Withstand Voltage: Less Than 50V
• Withstand Current: Less Than 1000MA
• Length: 21cm
• Line Sequence: Red-VCC, Black-GND, Green-OUT, Blue-TX, Yellow-RX.

DISTRIBUTION LIST

1 * 5.8GHz Doppler Effect Microwave Motion Sensor

1 * Ocean Interface JST 5-Pin Cable