I own an ancient glass one that was just digital. The display stopped working at one point for no bloody reason.
So, eventually I gutted its controller/display and replaced it with arduino, HD44780-based display, and HX711 mass sensor module (that reads the existing four sensors), with any form of wireless module for communication being easily addable, if needed.
Now, it's 1-gram precise, which is enough to be used as a large kitchen scale if need be (I plan on adding a switch), I've added supports customized calibration, and customized averaging (it takes N measurements, and displays that).
Further, I plan a smart home integration, and will replace the display and functionality with smartphone app with current user selection (presets + guest), logging, etc. (and subtraction of the phone's weight from the total).
It never supported those "fancy" additional measurements as water and/or fat percentage, but I guess those are relatively easily addable as well (aluminium/copper tape as sensors?). With this, formulas used for calculations would be the greater challenge.
Really, this is the only option of 100% future proofing ones hardware - do it yourself... plus, it is saved from a landfill.
So, eventually I gutted its controller/display and replaced it with arduino, HD44780-based display, and HX711 mass sensor module (that reads the existing four sensors), with any form of wireless module for communication being easily addable, if needed.
Now, it's 1-gram precise, which is enough to be used as a large kitchen scale if need be (I plan on adding a switch), I've added supports customized calibration, and customized averaging (it takes N measurements, and displays that).
Further, I plan a smart home integration, and will replace the display and functionality with smartphone app with current user selection (presets + guest), logging, etc. (and subtraction of the phone's weight from the total).
It never supported those "fancy" additional measurements as water and/or fat percentage, but I guess those are relatively easily addable as well (aluminium/copper tape as sensors?). With this, formulas used for calculations would be the greater challenge.
Really, this is the only option of 100% future proofing ones hardware - do it yourself... plus, it is saved from a landfill.