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You can build your own scale with an ESP32 for like $25 in parts - Hx711, load cells, ESP32, and a handful of trivial components. I threw together one that sits
by madaxe_again 9d ago
You can build your own scale with an ESP32 for like $25 in parts - Hx711, load cells, ESP32, and a handful of trivial components. I threw together one that sits under my gas bottle, so I know when it’s running low. Adding impedance would be a pretty trivial step.
- baby_souffle 9d ago> Adding impedance would be a pretty trivial step. But not the calibration that maps a raw ADC sample to "24.5% body fat, 21 Kg bone ..." etc.
- madaxe_again 9d agoSure, you’ve gotta have some known good values to compare to, but those aren’t hard to come by. Pretty sure you can get a decent idea of BF with callipers or somesuch.
- baby_souffle 9d agoBody fat would be possibly the only metric that a withings scale gives you that you can get a somewhat accurate number from without needing a dexa scan.
- alex_sf 9d agoWhatever values you stick in there are about as accurate as the scale is, so.