I am using a HX711 transducer (green board) with gauge sensor FX1901-0001-0200-L and FX1901-0001-0100-L from digikey (respectively 50kg and 100kg). I tryed with 2 of each above in case some would be defective (-> same result, see after).
What I experienced is that it is very linear, so "no" problem with programming, electronic and software : in a way it works.
The problem is that, whatever this sensor (50/100kg) it is saturating at something like half of its capacity. I tried to move to 32 gain on B way -> it helps to go a little higher but still saturating far from maximum load. I have calculated, considering our expection and experience that gain should be about 4 or something like that. Notice that in our mechanics there is no mechanical stop that could explain the problem.
So my question is : what went wrong ? how to set a lower gain ? what about adding a resistance between A- and GND to artificially reduce the gain ?
Any idea would be appreciated