So I've built a couple of projects that have a purpose of automating tasks while I'm away (eg. automatic fish feeding machine). So far, all of them have been working off 9V batteries and AA batteries connected in series.
My idea now is to have these run while I'm away on holidays (which could be months at a time). The Arduino boards will simply be powered via USB to the mains.
So my questions are:
Will there be any issues if I leave the Arduino running on for that long (eg. overheating, running out of memory space, etc...) and if so, how can I avoid them?
How could I power components that require an external power supply (eg. high torque servos that require min 6V) without having to use a battery?
Is there a fail safe way I could be notified (eg. via SMS) in the event that one of the devices stop working? I don't want to come home to my fishies being dead :sob:
Thank you so much!