ESP program to use the ds18b20 temperature sensor and send data using MQTT and the homie convention.
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Homie DS18B20

ESP01 and DS18B20 temperature sensor using Homie convention over MQTT

Notes

  • Using powered mode for ds18b20. Must supply power to power pin.
  • Used 10k resistor which works, 4.7k is what's suggested.
  • Using the Dallas Temperature library

schematic