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Cultibot

Gardening automation done with ESP8266 NodeMCU.

Modules

User setup

Initial WiFi configuration.

Clock (RTC)

Uses NTP to get the correct date and time between boots.

The device do has a RTC but it does not have an alternative power supply.

Requires an internet connection.

I2C

Two-wire bus communication protocol.

Temperature and humidity sensor

Uses the I2C bus or 1-Wire.

Relays

Electrical switches for power devices control. Uses the I2C bus or GPIOs.

Irrigation

Time-controlled. Uses the RTC and a relay.

Lighting

Time-controlled. Uses the RTC and a relay.

Ventilation

Sensor-controlled (temperature and humidity thresholds). Uses a relay.

IoT communication

Sends data to an IoT platform.

Requires an internet connection.

Limitations

  • No internet connection plus reboot leave RTC out of game, time-controlled actuators will not work.

  • WiFi password must be longer than 8 characters or it will not connect, this problem affects WEP authentication only.

  • Initial user config time window at boot lasts 5 minutes, no more, no matter what.