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This is my automatic fish feeder I created using an Arduino circuit board and motor shield (all open source).
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Wow that's quite a deal! I looked at that and thought you must have spent a lot of money. Very cool!
1) The Arduino board I got from Amazon, they range from anywhere between $20-$25. I found they also sell them at radio shack. The arduino boards are open source, so some people will make clone boards cheaper - I believe Fry's Electronics sells clones.
2) the motor shield is found around the same price ($25)
3) the motor was $17, but you can get much cheaper motors - you can get a simple DC motor for under 10 bucks that would do the job.
Everything else was parts laying around - 3/4 auger, pvc, water bottle. If you don't have an auger check out craigs list I saw some dude in mesa selling them for about 8 bucks.
Very nice Matt. What did it cost?
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