I discussed with @Clemens today if it would make sense to use the second input on the Hx711 chip with fixed gain of 32.
I calculated something. Maybe somebody can verify that?
I used this datasheet of the Hx711
Assuming we have 3V input and a load cell with 2mV/V on rated output (maximum):
input range: (=0,5*VDC/GAIN) = +- 50mV resolution with 24bit on +-50mV ~ 100mV: 100mV/(2^24) = 6 * 10^-6mV rated output of load cell with 3V = 3V*2mV/V = 6mv therefore the rated output is divided into 6mV/(6*10^-6)mV = 10^6 = 1 mio steps assuming a maximum range for one load cell from 0 - 100 kg we find: 100kg / 10^6 = 0,1g resolution!
That would be quite funny as this is the weight of one bee ;-)