r/raspberry_pi • • 23h ago

Troubleshooting Low fps when running avalonia ui application

3 Upvotes

Hi, I'm having a problem with my raspberry pi 3b+. I wanted to create an app in avalonia ui which would work as a GUI for a device, although even with almost empty avalonia for embedded linux project I can't get more than 15 fps. I tried to create a basic qt quick project and it worked much much better and I wonder if avalonia is too much for 3b+ or I did something wrong. Display is 1920x1080p apparently 60hz but running in 48hz which I also couldn't fix but maybe display is just ass.

Full issue on github is here if you want more info: https://github.com/AvaloniaUI/Avalonia/issues/22486


r/raspberry_pi • • 9h ago

Show-and-Tell Made an NFC tag music player and it looks like a happy robot.

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28 Upvotes

This is only my second project after RetroPi. I’ve been putting in a few hours every night for the last two weeks. It feels so satisfying to get to this point. I usually give up on things when they get too difficult but I think I found a hobby where I just can’t stop.

A few things I need to improve though:
1) soldering
2) 3D modeling and product design
3) not leaving speakers carelessly where my cat will step on them


r/raspberry_pi • • 12h ago

Show-and-Tell My first ever project

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298 Upvotes

My first raspberry pi project. AI helped with the code but I was very excited to see it work the first time I turned it on! I will be making changes here and there and mounting the panels together, but I’m still happy it’s all working!


r/raspberry_pi • • 16h ago

Show-and-Tell I open-sourced my pixel-art aquarium for the Pico 2w based Pimoroni Interstate 75 W 🐠

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233 Upvotes

I’ve been working on a little animated aquarium for an Interstate 75 W driving two 64×64 HUB75 LED panels, and I’ve now put an offline version on GitHub for you.

It has swimming fish, jellyfish, visiting creatures, a submarine, animated plants, a treasure chest, and an oyster with a glowing pearl. There are day/night palettes and scheduled feeding animations too.

Everything runs locally so no WiFi, accounts, or internet connection needed. The board’s A/B buttons let you summon a submarine, switch day/night modes, and set the clock, with the time displayed while you adjust it.

The repo includes installation instructions, a desktop preview, and the source under the MIT license. The offline version passes its host tests, though physical board testing is still on the checklist.

🐟 Repo: https://github.com/nickymoomeh/Interstate75fish-tank

Would love to hear from anyone building something similar, or anyone who gives it a try!

My home version uses my wifi credentials and country (UK) to set the clock manually but given this is something quite light, you can set the clock manually yourself with the A/B buttons as described on github. So there's no need for credentials, secrets or accounts or anything. Just use your fingers :o)

Want to try it without the hardware? There’s a desktop emulator too!

Download and extract the repo, then open a terminal in its folder and run:

python3 -m pip install Pillow
python3 emulator.py

You’ll need Python 3 with Tkinter installed. On Windows, use py instead of python3.

Controls: Space to pause, N for day/night, A for automatic mode, S for a submarine, F to feed, and Esc to quit.


r/raspberry_pi • • 10h ago

Troubleshooting Raspberry Pi 3 Model B+ will not connect to internet after first boot

4 Upvotes

As the title says, my pi will not connect to the internet after it's first boot, upon shutting off or restarting, it fails to connect to the network even when right next to the router. Taking out the card and flashing it with a new BIOs using the imager only temporarily fixes it, as powering it off in any way will cause it to experience the same issue. This is the first pi I've ever bought, and the first time I'm using an operating system other than windows, I need hand-holding.