Sleep peacefully with well-fed fish

Sometimes daily chores like feeding pets can feel like a real chore. To help alleviate the mundane aspects of everyday life, [Erik Berglund] has created an automatic fish feeder, complete with 3D print files, firmware and an Android app for full control over scheduling and feeding .

The mechanics of the fish feeder include a screw conveyor system that pushes feed pellets from a feed store basin. The screw conveyor is driven by a Feetech FS5106R servo which provides enough force to overcome the blockage that might occur when the pellets get stuck in the conveyor system. [Erik Berglund] writes that the system can dispense about 0.9 g/s and is designed for pelleted foods, as the flakes have problems because "their low density and large surface area tends to get them stuck in hopper throat" - an issue we've looked at previously.

[Erik Berglund] used [coberdas]'s fish feeder as a base, upgrading it with a better servo, adding a Raspberry Pi Zero W with software for the Pi and an Android app to control feeding timing . There is also a DS1307 real time clock module to keep accurate time and a push button for "manual" power. If you're looking to follow along at home, you can find the Python scripts that run on the Pi and the Android app source code in their respective GitHub repositories.