I just bought a temperature probe and I need some help. Does anybody know if it is a 5v or 3.3v sensor and which wire is positive and which wire do I attach into my analog port on the Arduino. Both of the wires are black, but one as a grey stripe on it.
I have looked all over for examples and I can't find any. I can calculate the temperature by using a thermometer and comparing what the probe values are vs the temperature, but I don't know how to connect the probe to the Arduino.
The capacitor is used to protect the analog input from transient noisy problems.
This may result from long cables in a electrical noisy environment.
If you are just doing a test you don't need the capacitor.