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Monday, July 4, 2016

Soil moisture/humidity control system (part 2)

   In previous article I present you a simple metode for read and control soil humidity (soil moisture) and for protect the probe of soil moisture sensor with intermitent power of sensor (just few seconds when measure process - at 5 second whem pump is on for not flooding and at few minutes wheh humidity is ok).
   Now, I put a inportant indication: time elapsed since the last watering process (maximum 999 hours 59 minutes, using millis() soubrotine, see article from https://www.arduino.cc/en/Reference/Millis).
   For that, I use a sketch like lcd1602_i2c_umditatesol_ver2.ino just change texts in english.
   I use same schematic:
   I made 2 movies:
   

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