![]() This article would be most likely private if the fish or the snail would die. If it would not survive, it wouldn’t affect our feeder. So for safety reasons, we used another RapsberryPi just for streaming. The stream was in resolution 640x480px and 15 FPS and it still uses almost 95% of CPU time. So we weren’t able to optimize streaming enough. It is not a big surprise we kept everything to the last days. We have used ffmpeg tool and the prepared script can be found again in our public Gitlab repository.Įveryones know, the developers are lazy. So we decided to do a stream with a web camera on YouTube. But as the feeder is a piece of hardware, it is much harder to monitor. Visual feedback with non-stop stream to YouTubeĪccess with SSH, logging, and monitoring might check the software behavior. You can find the full script in our public Gitlab repository. ![]() So even during power strike, fish and snail would be fed after that. And the last feeding time was controlled programmatically. The python script itself was executed regularly every hour by Linux Cron. I was writing about it earlier.And for the worst case, we assigned a static IP address and set up port-forwarding to have access with SSH into the Raspberry. So besides some basic logging into the local file, I set up also monitoring with service Healthchecks.io. I wanted to be sure, it will be working flawlessly. In some situations, I could call myself a control freak. RaspberryOS comes with some nice integration into Python, so controlling GPIO (General-purpose Inputs Outputs) is super easy. We will use only 1 power supply and the feeder will contain also DC/DC step-down module to power Raspberry. And we had an old laptop power adapter that produce 19.5V. But RaspberryPi needs 5V and has 3.3V GPIO pins. The stepper motor driver needs input voltage in the range 8.2 - 45V and a logic voltage between 2.5V and 5.25V. So with colleagues, we decided to use the RaspberryPi which was unused in our office.Īfter we prepared RaspberryPi and we were able to control LED, we realized what will be the next challenge. I spent the whole weekend trying to find another solution to make it work, but unsuccessfully. But they removed also all images required to make the kit alive. I thought it means, that only new features are not coming. However, Google stopped this project meanwhile. I got an Android Things kit during Google Developer Days back in 2017 in Krakow, Poland. So we needed to do the next iteration and print the inner part again with bigger bowls. And the snail’s food was bigger than the bowl in the feeder. The first prototype actually worked! But in the tank, we have also snail, not just fish. First, we had to do a small modification to properly attach stepper motor. But the existing ones are either expensive or not compatible with our aquarium.įor more about side projects in our company, visit /blog ![]() ![]() So there was no spare tank to move the fish again. But during 2021 that tank became an Aquarium PC. □□ V češtině si lze článek přečíst na īefore Christmas 2020 we used our smaller tank and moved the fish to a colleague's flat. That might be too much for the fish without food. But our office building is closed every Christmas for almost 2 weeks. By that day all of us started to learn how to care about aquarium. Fish food sinks to the bottom and contaminates the pond, adversely affecting water quality.All started 2 years ago, when a colleague got a Beta fish and brought it to the office. They grow well and stay healthy with a regular diet. With the Fish Feeder Pro at the pond side, your worries are over!Įncourage natural eating behaviour of fishįish digest food quickly, so they benefit from several small portions of food per day. Also during holidays and time spent away, you want to be sure that your fish are properly fed daily. In bad weather conditions, the fish are sometimes forgotten. It is not always possible to feed your fish several times a day when you have a full agenda and a busy schedule. After a power failure, feeding resumes automatically. Besides the preset feeding schedule, additional feeding is possible at any time using the control unit. ![]() The Fish Feeder Pro automatically feeds your pond fish the appropriate amount up to 20 times a day. ![]()
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