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

Support Product Questions
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This is a placeholder topic for “Human Micro-Motion Detection mmWave Sensor” comments.

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.

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Does this product work with home assistant

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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.

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

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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.

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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

1 Like
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Hey @David173576

Good pickup with the GPIO out pin!