We've been testing a weight unit recently, part of a M5Scale kit but connected directly to a M5Go, however it does not measure weight properly. We've tried with a few objects we know the weight of, and it was way off, under the real weight, and not consistently so. An object that weight 500g shows up at 268g, while a 100g object showed up at 71g.
I read here that there may be a pre-calibration to do before hands, but how can we do this? We did the rest to 0 of course, but that's not it.
Any thoughts? Thank you!