Value with sensor unplugged
Posted: 15 Apr 2024, 12:58
Hello everyone, I have built a small pressure sensor using an ESP8266 and an ADS1115 (ESPeasy firmware of course).
It works pretty well so far. The only thing that bothers me is that as soon as I unplug it, I still get a pressure value or the ADS outputs a voltage.
I've already tried to eliminate this with a pull-down resistor, but that doesn't work so well (I get a negative pressure reading).
Do you have any idea how I can solve the whole thing in an elegant way, so that I only get "0" as a pressure value or possibly also "unplugged" as a test?
It works pretty well so far. The only thing that bothers me is that as soon as I unplug it, I still get a pressure value or the ADS outputs a voltage.
I've already tried to eliminate this with a pull-down resistor, but that doesn't work so well (I get a negative pressure reading).
Do you have any idea how I can solve the whole thing in an elegant way, so that I only get "0" as a pressure value or possibly also "unplugged" as a test?