Heart Rate Measurement Via Wi-Fi without any skin contact needed
“The basic concept is simple enough. One ESP32 is set up to transmit a stream of Channel State Information packets to another ESP32, with a person standing in between. As the person’s heart beats, it changes the way the radio waves propagate from the transmitting unit to the receiver. These changes can be read from the packets, and processed to estimate the person’s heart rate.”
We've seen some fascinating applications before with Wi-Fi (like seeing through walls), but this could have interesting applications too, like measuring heart rate while someone sleeps, not needing to wear a watch or a band at all. Just please don't mention the discounted 5G myth.
This also opens up ideas about how else Wi-Fi may be used for other solutions.
In the comments below the linked article, someone has also provided the link to the full paper explaining how this works.
See
Heart Rate Measurement Via WiFi, The DIY Way
A few weeks back, we reported on a research group that figured out how to measure heartrate using perturbations in WiFi signals. [Nick Bild] was interested in this so-called “Pulse-Fi” …
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