If your household sometimes forgets to feed pet fish, an option to solve the problem is to make an automated device to drop food into the tank over regular intervals. This is quite easy to do with an Arduino, and has been demonstrated by Instructables member Constructed.
A small shampoo bottle is used to hold a quantity of food, and with a hole drilled into the neck will allow food to drop out once the bottle is rotated a little. This can be accomplished with an Arduino-controlled servo - which you can of course write a sketch to control this for the desired periods of time. It's an inexpensive project that could save you from unexpected fish loss, and demonstrated in the following video:
This would also make a fun project to share with younger children, so visit the feeder's Instructable page to get started. And for more, we're on facebook, Google+, and twitter - so follow us for news and product updates as well.
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