Based on the ESP32 microcontroller, an automatic watering system was created with data recording in an online database. The system consists of the main microcontroller, which takes care of the communication between other microcontrollers and the online database. Communication between the main microcontroller and others uses BLE protocol during pairing, after that all communication is done with the esp-now protocol. A website was also created, through which the user can monitor microcontroller data, add new microcontrollers to the network and change settings.
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