Automatic fish feeder
thingiverse
This automatic fish feeder delivers fish food automatically using a HiTEC HS-422 servo that spins 180 degrees to dispense the food, then rotates back 180 degrees to refill. The feeder holds a significant amount of flake or small pellet fish food in its hopper. To complete this feeder, you'll need a servo with a square .4" by .4" attachment, such as the one that comes with the HiTEC HS-422 model. Additionally, an arduino or other controller is necessary to instruct the servo on when to move and feed the fish. Three millimeter bolts and nuts are also required to secure the holding fins to the feeder's body.
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