Reverse ? symbol has me ? from One Wire DS18B20 temp sensor. Values are off too!

[markd833]

I wondered that as well, then I found this thread:

[SOLVED] How to print the degree symbol ? (extended ASCII)

Hi Serial.print(int(temp_air)); Serial.print(" °C. Humidity: "); Give me Temperature: 17 °C... How can i get it ? i tried Serial.println(&deg); or &#176 thanks

And the explanation/clue in the link from post #21 in that thread.