void setup() Serial.begin(9600); sensors.begin();
OneWire oneWire(ONE_WIRE_BUS); DallasTemperature sensors(&oneWire); openwire.h library download arduino
If your original code had OpenWire.h , change it to OneWire.h – they are almost always interchangeable. | Error message | Likely fix | |---------------|-------------| | OpenWire.h: No such file or directory | Replace with OneWire.h or find the specific custom library | | undefined reference to OpenWire::... | Wrong library – use OneWire.h | | Multiple definition errors | Remove duplicate 1-Wire libraries from your libraries` folder | Final recommendation Don’t waste time hunting for OpenWire.h – 99% of the time it’s a confusion with OneWire.h . Install the standard OneWire library via Library Manager and change #include <OpenWire.h> to #include <OneWire.h> . Your sketch will compile and work correctly with DS18B20, DS2423, DS2408, and other 1-Wire devices. void setup() Serial