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Arduino Automated Watering

pjacobsen

Hey guys hoping for some simple answers before diving into this project.

The basic idea is an arduino is hooked up to 2 motors that will fill and drain a reservoir on specific internals.

What is the best way to use timers in this application? The intervals may be long (12hrs)

Would delay() calls be clunky? Would i2c Real time clocks be overkill?

I will have the program displaying data (and eventually a menu) over LCD, I need a timer function that will still read button presses.

Thanks in advanced for any insight. I'm slowly catching on to best practices.


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  • Hi Parker,

     

    Don’t use delay.  Set up a check in your loop for the elapsed time and properly manage overflow.  If you google “arduino millis() overflow” you will find a discussion of this.

     

    You have not provided enough information to determine if a RTC is needed but probably not.    You can get started without it.

     

    Pick a LCD that already has an Arduino library.  Buttons are easy to add in your loop or use an interrupt.

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  • Hi Parker,

     

    Don’t use delay.  Set up a check in your loop for the elapsed time and properly manage overflow.  If you google “arduino millis() overflow” you will find a discussion of this.

     

    You have not provided enough information to determine if a RTC is needed but probably not.    You can get started without it.

     

    Pick a LCD that already has an Arduino library.  Buttons are easy to add in your loop or use an interrupt.

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