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Watering-System-SMD

Watering system with Attiny84 and i2c moisture sensor.

THINGSPEAK LINK:

https://thingspeak.com/channels/339098

FEATURES:

  • Measures soil moisture, light and temperature.

  • It waters only at night.

  • It doesn't water if temperature is below 4ºC.

  • It waters depending on a preset value and a hysteresis.

  • It takes measurements every hour, then microcontroller goes to deep sleep.

  • If it irrigates, then checks moisture again after five minutes.

  • Measurements are uploaded to thingspeak.com

BILL OF MATERIALS:

TO IMPROVE

  • Change protection diode with a schottky diode
  • Add a resistor in serial with diode D2 to close the EV slower
  • Connect the electrovalve and the diode D2 after the diode protection diode.

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