Problema sonde DS18B20

khriss75:
Tiri i tuoi 3 cavi: DATA, Vcc e GND.

Ti consiglio comunque i doppini intrecciati, gli stessi che trovi nei cavi UTP CAT-5 ... usi due coppie una GND e +5 e una GND e DATI così come suggerito nell'application note della maxim :

Network Description
The scope of this document is limited to 1-Wire networks that use Category 5 (/glossary/definitions.mvp/term/CAT5/gpk/47), twisted-pair (/glossary/definitions.mvp/term/Differential- Signaling/gpk/997) copper wire and have 5V bus power supplied by the master. (Most 1-Wire slaves will operate at lower bus voltages, but large networks often have too much loss to perform well under low-voltage conditions.) ...

Guglielmo