Sleepy-time

We were really hoping to be able to put the arduino to sleep and wake it up every 30 seconds or minute to scan for sound, then wake it up again, but it turns out this won’t be possible.

We thought it was a good idea in order to help make it more portable, in that the battery would last a lot longer, but according to everything I have managed to read about it, it seems that 8s is the longest you can put an arduino to sleep for without an external clock attached, which we have no hope of getting at this point.

Hopefully though, it won’t matter as we have already tested the system for 10 minutes off battery with a simple delay in, and it could have lasted even longer but I got bored!

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