I purchased a $20 digital body scale with the hopes of hacking it to obtain (via an Arduino Uno) the load values (need weights up to 330lb which is what the original scale capacity was) as well as reduce the surface area of the weighing slab to about 2x2 inches. I believe I know what to do once I ge…

Digital Body Scale Hacked - Uncertainty with Wiring

MarkT April 1, 2014, 11:35pm 2

Measure the voltages on the strain guage wires when the device is powered up - then
you'll see which are supply and which are bridge outputs.

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