I just received the DS18B20 today and want to begin testing this. However, I am confused about a few things before I even begin.
Let me start by saying that I got this particular version of the sensor from Adafruit: https://www.adafruit.com/products/381 which has the wire extension and is waterproofed.
- There are 4 wires and not 3 like all documentation points to (Red, Black, Yellow, Exposed copper)
- What are each of these wires' functions?
- I'm assuming Yellow is ground?
- Red - DQ or VDD?
- Black - DQ or VDD?
- Exposed copper - ????
I was a little confused by these colors and the Exposed Copper wire