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http://www.pihrt.com/elektronika/248-moje-rapsberry-pi-zavlazovani-zahrady
unlimited number of outlets and the valves
rain sensor (do not water when it rains)
Sensor power failure (safe system shutdown and Raspberry Pi)
weather forecast and the amount of water needed (depending on weather parameters are set)
Webcam (for remote control of the land – watering)
sms control (control by mobile phone)
sending emails (status system events)
LCD screen (information as who and how)
measurement of temperature and voltage (4x AD input + 1x DA output)
measuring the amount of water (pulse meter – how much water has flowed)
measurements of wind speed (in high winds do not watering)
measuring the pressure (in case of failure of water is not water)
watchdog system (in case of frost restart)
the amount of water by month (for each month of the year you can specify different amounts of water)
RTC
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