Description
This DS18B20 Digital temperature sensor is a pre-wired version of the standard “1 Wire” temperature sensor. The sensor is encased in a weatherproof housing and should be quite happy in wet or damp conditions and to temperatures of up to 100°C.
These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter. They work great with any microcontroller using a single digital pin, and you can even connect multiple ones to the same pin, each one has a unique 64-bit ID burned in at the factory to differentiate them. Usable with 3.0-5.0V systems.
To use this sensor: Apply power to the Red wire and Ground to the Black wire. These sensors ship with either a yellow or white data line out. The data line will need a 4.7k ohm resistor between VCC and the data line.