Get AT command response

If you have not yet read all of chapter 5 in V.250 specification stop reading here and do so immediately, it is an important basis for the rest of this answer, I’ll wait until you’ll come back. Some of the references to alphabets (short version: ignore this/treat it as ASCII) and S-registers might seem cryptic … Read more

Load cell Arduino HX711 Fluctuating up

I recently bought some extremely cheap (5 for $10.00) HX 711 boards. I noticed the same thing that you did; value drifting upward. I checked the on board load cell power supply and it seems to be defective. The band gap reference voltage (VBG) which is supposed to be 1.25 volts is actually 1.9 volts, … Read more