Microwave Motion Sensor Products
Created:
15Dec2023 01:07:15 UTC
2023-12-15T01:07:15Z
Updated:
08May2024 09:46:53 UTC
2024-05-08T09:46:53Z
Description
Microwave motion sensors are a type of active sensor that operates by sending out a microwave signal at a certain frequency and receives the reflected wave to evaluate a small difference between the two as a result of movement in the area. The microwaves reflect off of different surfaces and is mixed with the transmitted signal to arrive at a frequency difference that is extracted by a low pass RC filter, then amplified, and finally threshold detected to give a digital output.
One of the main benefits of microwave sensors is they are not influenced by temperature, humidity, noise, air flow, dust, ray etc. They also can penetrate non-metallic walls. A few common microwave sensor modules and sensors are provided on this page. The modules have their own signal conditioning, amplification, and thresholding circuitry built into the module, whereas HB100 and CDM324 are just the sensors where you have to provide your own external circuitry.
Modules
RCWL-0516
- 1x Sensor Module
- 5x Sensor Module
- 5x headers 4P
- 5x Sensor Module
- 5x headers 4P
- 5x Sensor Module
CQRobot CQRSENWB01
- 1x Sensor Module
- 1x JST to DuPont cable connector
DFRobot SEN0192
- 1x Sensor Module
- 1x 3 pin JST to DuPont cable connector
Sensors
HB100
- 1x Sensor Module
- 1x Sensor Module
CDM324
- 1x Sensor Module
- 1x Sensor Module
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