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DS18B20 Temperature Sensor
Please take a look at Dallas DS18B20 1-Wire temperature sensor datasheet
There is a bit of conventions to kind of use:
For a sort of data connections it is common use yellow, orange or some other color. Alternatively if you are using the Waterproof version of DS18B20
- blue and black leads to negative or ground connections
- red leads for positive connections.
Take note of wire color conventions to do a correct setup.