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README.org

Homeostasis

Temperature, air humidity and soil humidity sensor that communicates via MQTT. The project is implemented using a Wemos D1 mini board with the following addons:

  • DHT11 temperature and humidity sensor
  • FC-28 soil hygrometer sensor
  • Battery shield
  • 3.7V 1000mAh Lithium battery

The sensor captures the data every 15 minutes and sends it to a MQTT broker and then enters deep sleep, it is important to save power as the device runs off a battery.

/coolneng/homeostasis/media/commit/8a61260bc03efa016a2dfdad4fe8446c66970337/result.png

Pinout of the board

/coolneng/homeostasis/media/commit/8a61260bc03efa016a2dfdad4fe8446c66970337/pinout.png

Dependencies

Deployment

The software uses the Arduino framework and the development environment of PlatformIO, which offers better tools than the Arduino IDE.