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README.org
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README.org
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* Homeostasis
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* Homeostasis
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Temperature, air humidity and soil humidity sensor that communicates via MQTT. The project is implemented using a Wemos D1 mini board with the following components:
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Temperature and humidity sensor that communicates via MQTT. The project is implemented using a Wemos D1 mini ESP32 board with a DHT22 sensor.
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- DHT22 temperature and humidity sensor
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- FC-28 soil hygrometer sensor
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- Battery shield
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- 3.7V 1000mAh Lithium battery
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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.
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#+ATTR_HTML: :width 60%
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#+ATTR_HTML: :width 60%
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[[./result.png]]
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[[./result.png]]
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@@ -19,8 +12,9 @@ The sensor captures the data every 15 minutes and sends it to a MQTT broker and
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** Dependencies
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** Dependencies
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- [[https://github.com/adafruit/DHT-sensor-library][Adafruit DHT sensor library]]
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- [[https://github.com/adafruit/DHT-sensor-library][Adafruit DHT sensor library]]
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- [[https://github.com/adafruit/Adafruit_Sensor][Adafruit Unified Sensor Driver]]
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- [[https://github.com/adafruit/Adafruit_Sensor][Adafruit Unified Sensor Driver]]
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- [[https://github.com/knolleary/pubsubclient][PubSubClient]]
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- [[https://github.com/marvinroger/async-mqtt-client][Async MQTT client]]
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- [[https://github.com/bblanchon/ArduinoJson][ArduinoJSON]]
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- [[https://github.com/bblanchon/ArduinoJson][ArduinoJSON]]
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** Configuration
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** Deployment
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** Deployment
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The software uses the Arduino framework and the development environment of [[https://platformio.org/][PlatformIO]], which offers better tools than the Arduino IDE.
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The software uses the Arduino framework and the development environment of [[https://platformio.org/][PlatformIO]], which offers better tools than the Arduino IDE.
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