ESP8266 D1 Mini DS18B20 Temperature Sensor

This Digital Temperature Sensor with the Dallas 1-Wire Interface measures temperatures between -55 and +125 degrees Celsius. The highest precision of +/- 0.5 deg. can be found in the range of -10 to +85 degrees Celsius.

Libraries for this sensor type and different programming environments, for example for ESP8266, Arduino or Raspberry, are available and easy to find.

The digital sensor element can be programmed for resolution of 9 to 12 bits (steps of 0.5 to 0.0625 degrees), a 12 bit conversion takes max. 0.75s.

A temperature alarm condition can be programmed right in the sensor (nonvolatile).

Every sensor element comes with a unique, digital serial number. Therfore, multiple sensors can be connected to the same interface.

– voltage supply 3.3V (Wemos D1 Mini standard)
– operating current ca. 1.5mA
– standby current ca. 3µA
– transmission current 1mA/4mA (logic 1/0)

Dallas / Maxim DS18B20 Data Sheet

Example codes for Wemos D1 Mini Sensors and Modules (GitHub)

Another source for Wemos D1 Mini compatible Arduino libraries