Human Micro-Motion Detection mmWave Sensor (WS-26536)

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Human Micro-Motion Detection mmWave Sensor, 24GHz mmWave Radar, Based On S3KM1110, Adopts Frequency Modulated Continuous Wave (FMCW) Technology, Compact…

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Hi would like to use a cheap mm wave sensor for use with home assistant.

Does the product below work with home assistant? Is there any tutorials on implementing it to use its features in HA.

Does this product work with home assistant

The warning label on the web page needs to specify 24GHz devices, at present it lists only the lower frequencies (433Mhz / 915-930Mhz / 2.4Ghz).

Any purchasers of this product should be aware of the ACMA regulations in Australia and ensure operation does not breach these regulations.

https://www.acma.gov.au/licences/low-interference-potential-devices-lipd-class-licence

Regards
Jim

PS Waveshare do not specify the power output which is a problem in my book, ACMA states a maximum EIRP of 0.1W.

Most likely not.
You will need something that reads the UART signal and translates it to whatever format Home Assistant needs.

Hi @Daniel193519

That sensor would be similar to our Rd-03D mmWave Multi-Human Position Sensor | Buy in Australia | CE10172 | Core Electronics that was featured in this write up Detect and Track Humans with mmWave Radar on an Arduino.

There is definitely a good chance that it’s possible, but as @James46717 mentioned you will need something to interpret the UART signal into a digestible input for HA.

We haven’t had a chance to see if it will work or not, and there is limited info available for doing so online. I would say your best bet will be to use an LLM such as chatgpt and run some tests with it.

Hi Daniel,

If your question is whether it will work directly with Home Assistant, then no, it can’t really communicate other than by the GPIO.

However, if you use connect it to a ESP32 GPIO, from the spec sheet: high means presence detected, low mean no detection. This is no different to a PIR sensor. The ESP32 integrates fairly seamlessly with HA using the ESP32Home integration.

I’ve used these: https://core-electronics.com.au/esp32-c3-mini-dev-board-iot-wifi-bluetooth.html to connect a few PIRs. In the .yaml code treat it as a binary sensor. After you do the details for the WiFi connection, the snesor only needs a small amount of code like this:

binary_sensor:
  - platform: gpio
    pin:
      number: 4
      mode:
        input: True
        pullup: False
    name: "SensorName"

Good luck, Dave

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Hey @David173576

Good pickup with the GPIO out pin!