WiFi signals can measure heart rate

[josejad]

Maybe someone want to try to make a B4R project with an ESP32

WiFi signals can measure heart rate—no wearables needed

Engineers prove their technique is effective even with the lowest-cost WiFi devices

news.ucsc.edu

 

[rabbitBUSH]

Maybe someone want to try to make a B4R project

CAREFUL - that might set some heart rates racing ........