Ivko:
@uwefed
Sorry, das ist keine Lösung, da ich sehr kleine Spannungen messen soll 0 - 0.050 V.
Dann lies Dir bitte das Datenblatt des HX711 durch.
Da steht:
Analog Inputs
Channel A differential input is designed to
interface directly with a bridge sensor’s
differential output. It can be programmed with a
gain of 128 or 64. The large gains are needed to
accommodate the small output signal from the
sensor. When 5V supply is used at the AVDD pin,
these gains correspond to a full-scale differential
input voltage of ±20mV or ±40mV respectively.
Channel B differential input has a fixed gain of
32. The full-scale input voltage range is ±80mV,
when 5V supply is used at the AVDD pin.
Grüße Uwe