wanted to use TinyGo for this project, which unfortunately meant that he couldn’t use the ESP32’s built-in WiFi system due to software limitations. The servo is driven by an ESP32 sitting inside an M5StickC IoT development kit. The heart of the system is a 3D-printed mechanism that holds a bottle of fish food in a funnel and dispenses a set amount through a servo-operated shutter. If you’ve got an aquarium and want to keep your fish well-fed during your vacation, then ’s internet-connected automated fish feeder might come in handy too. Thanks to modern technology it’s easier than ever to keep an eye on those empty homes: internet-connected cameras report suspicious activity, and smart-home devices like curtains and light bulbs can be operated from your holiday home. With summer in full swing in the Northern Hemisphere, millions of people are out on vacation leaving millions of homes empty. Posted in home hacks Tagged fish feeder, garden, pond, water measurement, water monitor It reminds us more of a highly advanced aquaponics setup, and we wonder if that might not be a possible spin-off of the core project in the future. In the past we’ve seen projects that tackled some of the individual elements has developed, such as 3D printed fish feeders, but after searching through the archives we can’t find anything that’s even half as ambitious as Poseidon. Even if you use only one or two of the modules he’s put together, you’ll still be ahead of the game compared to the chumps who have to maintain their pond the old fashioned way. Each module has it’s own detailed write-up, which should provide you with more than enough guidance should you want to recreate or remix what he’s put together. has provided schematics, 3D models, and source code for all the various systems built into the pond, but the documentation is where this project really shines. How many other ponds can publish their current water level, pH, and oxygen saturation over MQTT? The ESP8266 fish feeder is just one element of Poseidon The aptly-named Poseidon project is built up of several modular components, ranging from an automated fish feeder to an array of sensors to monitor the condition of the water itself. In fact, this is one of those projects that is so grand in scope that any summary we publish here simply can’t do it justice. But not - his pond is a technical marvel, utilizing more unique pieces of hardware and software than many of the more traditional projects that have graced these projects over the years. What do you think of when you hear the word pond? If you’re like most people, it conjures up images of a simple water-filled hole in the ground, maybe with a few fish added in for good measure. If you’re looking to follow along at home, you can find the Python scripts that run on the Pi and the source code for the Android application in their respective GitHub repositories.Ĭontinue reading “Sleep Easy With The Fishes Well Fed” → Posted in home hacks, Raspberry Pi Tagged android app, automation, fish feeder, Raspberry Pi Zero W, screw conveyor ![]() There’s also a DS1307 real time clock module to keep precision time and a push button for “manual” feeding. used ’s fish feeder as the base, upgrading it with a better servo, adding a Raspberry Pi Zero W along with software for the Pi and an Android application to control the schedule of feedings. writes that the system can dispense about 0.9 g/s and that it’s designed for granulated food, as flakes have problems because “their low density and large surface area tend to get them stuck in the throat of the hopper” - an issue that we’ve looked into previously. The screw conveyor is driven by a Feetech FS5106R servo which provides enough force to overcome jamming that might occur with pellets getting stuck in the conveyor system. The mechanics of the fish feeder include a screw conveyor system that pushes the food pellets fed from a food store basin. To help with alleviate the mundane aspects of daily life, has created an automatic fish feeder, complete with 3D print files, firmware, and an Android app for complete control over scheduling and feeding. ![]() Sometimes daily tasks, like feeding pets, can feel like a real chore.
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