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WiFi signals can measure heart rate

(news.ucsc.edu)
463 points bookofjoe | 3 comments | 04 Sep 25 14:53 UTC | HN request time: 0.222s | source
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troysk ◴[04 Sep 25 17:29 UTC] No.45129837[source]▶
I do it using MMWave sensor, 60Ghz one. Want to have more of them but installation is a pain as these need to be mounted on ceiling so WiFi based sensor would be awesome!
replies(2): >>45130083 #>>45130421 #
1. mhuffman ◴[04 Sep 25 18:17 UTC] No.45130421[source]▶
Tell more about your setup!
replies(2): >>45131865 #>>45150789 #
2. NoiseBert69 ◴[04 Sep 25 20:27 UTC] No.45131865[source]▶
Infineon 60GHz IoT FMCW radar modules have all datasheets published. That's super rare for Infineon - usually they are the worst NDA-hell on earth.

Chinese vendors sell uC+Radar-Module units on Aliexpress for around ~20-30€. They Infineon-based boards are super easy to spot by looking at the Antenna-on-Chip layout.

You can cut off their head (microcontroller) and directly attach your favorite uC onto the SPI bus to talk to them. Or use the existing one.. not overly complicated to reverse engineer the schematic.

Example: MicRadar RA60ATR2

3. troysk ◴[06 Sep 25 16:41 UTC] No.45150789[source]▶
posted some details at https://news.ycombinator.com/item?id=45150761. happy to answer any additional queries you may have.