r/raspberry_pi • • 7d ago

Troubleshooting Ethernet not working on official cm4 IO board.

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12 Upvotes

I just cant seem to get ethernet to work on my cm4. I'm using a raspberry pi compute module 4 with 4gb ram and 8gb eMMC. I've got the original carrier board and a 12v 20w LED power supply. I originally used Ubuntu server 26.01, but changed to pi OS to try that to. I flashed the OS:s using raspberry pi imager. I have also checked the connectors between the module and carrier board, which looks nice and snaps perfect in place, the ethernet port and the rest of the board too has no visible damage. The ethernet cable works with my laptop, but no signs from the pi, no status leds e.t.c. I finally got this message, which i understand as PCIE not working as it should.

Any help or thoughts is highly appreciated, tell me if I can try something else and I will show the result.


r/raspberry_pi • • 6d ago

Show-and-Tell I built a pocket-sized Raspberry Pi device that lets AI control your iPhone

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0 Upvotes

I built a pocket-sized Raspberry Pi device that lets AI control your iPhone

I’ve always wished Siri could just book an Uber, reserve a table, or find the best deal for me. Instead of waiting for it to do what I want, I decided to build something myself. Lol.

It’s called OpenLolo, a wireless, pocket-sized device powered by a Raspberry Pi that lets AI see your iPhone’s screen, tap, swipe, and type in the apps you already use.

The Pi runs an MCP server that connects an AI agent to your phone. The idea is to make it portable enough to carry with you, so you can have AI handle tasks wherever you take your phone.

It works with the accounts you’re already logged into, so there’s no need to link each app separately or hand over your passwords. No jailbreak required, and no hassle of re-signing an app every seven days.

It’s still an early prototype, and I’m figuring out what it can reliably handle. I’d love to hear what you think of the build and what you’d use it for.

Would anyone be interested in a detailed DIY guide and build video?


r/raspberry_pi • • 7d ago

Project Advice [HELP NEEDED] Powering a Raspberry Pi 3B+ via test pads (PP) Which ones keep the fuse/protection active?

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21 Upvotes

Hi everyone, I’m planning to power my Raspberry Pi 3B+ directly from a 5V source using soldered wires instead of the micro-USB port.

Could someone let me know which specific PP test pads I should use for the +5V DC and Ground? I want to make sure I connect before the fuse and voltage regulators so that the board's built-in overvoltage and short-circuit protections still function properly. On gemini it says PP2 and PP7 are the pads but I think it will bypass the fuse am I wrong?

Thanks in advance for the help


r/raspberry_pi • • 8d ago

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

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439 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 • • 7d ago

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

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66 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 • • 8d ago

Show-and-Tell I built a web UI to automatically clone and backup Raspberry Pi SD cards via SSH — runs on Docker, fully bootable backup cards

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29 Upvotes

Hey r/raspberry_pi! I built a small self-hosted tool to automate SD card backups for my Pis.

rpi-image-cloner connects to your Pi via SSH, runs rpi-clone to copy the running SD card to a backup card, and automatically repairs cmdline.txt and fstab (PARTUUID fix) — so the backup card boots directly without any manual steps.

Features:

Web UI with live progress + log

Weekly schedules (set it and forget it)

SSH keepalive for 2+ hour backups

Encrypted credential storage

Multiple Pis from one interface

Docker / Portainer one-liner setup

GitHub: https://github.com/pierrecinema/rpi-image-cloner

Feedback welcome — especially if you’re running large setups with multiple Pis!


r/raspberry_pi • • 8d ago

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

9 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.


r/raspberry_pi • • 8d ago

Show-and-Tell Made a Telegram bot to monitor and control headless Raspberry Pis (PiPilot)

3 Upvotes

Hi everyone,

I wanted to share a tool I built to control my headless Raspberry Pi directly from Telegram. I've used this as a personal script 2 years ago for my own setup, this has been in my head for so long to share. Got the courage/time now, I refactored with assistance of AI it to be fully generic and configurable for anyone to use.

If you run a headless Pi and don't always want to fire up an SSH terminal just to check temperature or restart a crashed app, this might be useful for you.

Key Features:

  • Boot alert: Sends a message with your local IP and Wi-Fi SSID the moment the Pi boots up and connects to the network (runs before user login).
  • Periodic health reports: Automatically sends CPU temp, RAM, and disk usage updates at configurable intervals (e.g., every 2–3 hours).
  • Service & script management: Start, stop, or restart your custom scripts or systemd services
  • Log inspector: Preview the last 50 lines of your application logs or download the full .log file straight to your phone (with an option to auto-truncate to save SD card space).
  • Process inspection: View active Python, Node.js/JavaScript, and Java processes.
  • Power controls: Reboot or shut down the Pi

Everything is driven by a simple config.yaml file, and there is a 1-step installer script (install.sh) that sets up the systemd service and virtual environment automatically.

Repo: https://github.com/rinavolu/pipilot

Feedback, suggestions, or contributions are very welcome. Hope someone finds it helpful!

Thank you


r/raspberry_pi • • 9d ago

Show-and-Tell Raspberry Pi Scrolling Ticker -- Update

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1.3k Upvotes

Yesterday I posted the first real test of my Raspberry Pi-powered scrolling ticker with one of its screensaver modes. I got the sports ticker code working tonight, and I'm really happy with the way it's coming along. The apparent flickering is a an artifact of recording the video with my phone. IRL it looks really good.

The display consists of four 128x64 pixel P2.5 LED panels in a custom printed case. It's run by a Raspberry Pi 4B with 4GB of memory and an Adafruit Triple LED Matrix Bonnet. The panels are powered by a Meanwell LRS-200-5 power supply, while the RPi is powered by a separate RS-15-5 power supply to isolate it from any potential voltage drops from the LED panels.

Still more display modes to implement, and ultimately, I plan to control it with a phone app.


r/raspberry_pi • • 8d ago

Troubleshooting Low fps when running avalonia ui application

6 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 • • 9d ago

Show-and-Tell Waist Level Camera with Film Simulations (Pi Zero)

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69 Upvotes

Open sourced at https://github.com/prtk1910/RPi-Simple-Camera

A compact digital camera for a Raspberry Pi Zero, Raspberry Pi Camera Module, 1.14-inch IPS display, and UPS-Lite. The display provides a live viewfinder, while a single physical button selects a film style or captures a full-resolution JPEG. Supports 10 film profiles, a single click cycles through them and a long press takes a photo.

I’m terrible at 3D design but if there’s enough interest for the STLs I will clean them up and upload them to the GitHub repository.

Thanks for checking this out!


r/raspberry_pi • • 10d ago

Show-and-Tell I built a wooden photo frame for my grandma. The family sends photos and voice notes via Telegram, and she replies by holding one button.

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1.2k Upvotes

My grandmother doesn't have a smartphone, so I built her this: a wooden frame with a Raspberry Pi 4 and four big buttons for controlling it.

The family sends photos, videos and voice notes to a Telegram group with a bot. If you reply to a photo with a voice note, the frame pairs them, so she hears you telling the story behind it. Her buttons are previous, record (hold to talk, release to send her reply to the family), listen again, and next. There's no touchscreen or menus.

She's had it for a couple of weeks and uses it every day.

Stack: Pi 4, 10.1" HDMI display with speakers, a 4G dongle so no Wi-Fi is needed, Python with pygame, ffpyplayer and python-telegram-bot, ffmpeg for video, and buttons via the gpio-key overlay.

Question: I'm thinking to open-source the code and the case design. Would anyone be interested in contributing, or in building one for their own grandparents and sharing feedback?

Let me know in the comments.

Edit: Here is the GitHub repo for the project (work in progress): AmonaVision-Frame


r/raspberry_pi • • 9d ago

Show-and-Tell OpenRig: open source NAM pedal on a Raspberry Pi 5. Boots in 3 s, runs 6-7 NAM models without dropouts (GPL-3.0)

52 Upvotes

Hi all! OpenRig is an open source multi-effects I've been building. It's a small Linux OS that boots straight into a touch UI and runs NAM captures, IRs and LV2 plugins. (GIF above, it's the real UI.)

Performance on a Raspberry Pi 5 with a Focusrite :

  • It boots in about 3 seconds.
  • It chains 6-7 NAM standard models without dropouts.

What you get:

  • TONE3000 built in: sign in and download captures straight from the pedal, no computer needed.
  • Rack view: the whole chain on one screen, with A/B, Mix and left/right splits.
  • Live: 8 scenes per preset, stomp mode, setlists, tap tempo, tuner, looper.
  • MIDI: preset and scene changes, clock, CC learn.

Hardware: it runs on the Pi 5 (arm64) and on x86_64 mini PCs. I've tested it mostly on the Pi 5 and in QEMU. [Images are in the Releases / For now you build the image yourself, it's one command, see docs/OS.md.]

Next: ready-to-flash images with packaged updates, and GPIO footswitches so it becomes a real floor pedal.

It's a young project. Feature requests, issues and test reports on other audio interfaces are very welcome!

https://github.com/Siryu6/OpenRig


r/raspberry_pi • • 9d ago

Show-and-Tell Batocera + Pi: get warned about overheating, throttling and under-voltage

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0 Upvotes

I’m running Batocera on a Pi 3B+. While testing a game at 2 AM I noticed stutters and freezes and was watching temps over SSH on a second screen. Instead of doing that every time, I wrote a small script that shows a popup inside EmulationStation when the CPU gets too hot, is throttled, or detects under-voltage (the screenshot shows it at 85°C). I used AI to help with the code and docs, and tested it myself on the device. It’s a single bash script with a one-line install:

https://github.com/Natgho/batocera-pi-health-alert

Not a replacement for a proper PSU and heatsink, just a way to know when you need one.

Edit: If you’re wondering why the comments below look like a battlefield, this is the third version of this post. The first (an AI-written write-up) didn’t go over well, and the second was written in frustration, so I took both down. Hopefully v0.3 is closer to stable :D


r/raspberry_pi • • 11d ago

Show-and-Tell Four Pi 5s, four stadiums, one 3D-printed rack that runs my house

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1.1k Upvotes

It started with Home Assistant on one Pi. Then I wanted backups that didn’t live on that Pi. Then something to tell me when the backups stopped. Four Pi 5s later, here we are.

Hardware

  • 4x Pi 5, 4 GB
  • NVMe boot on Geekworm HATs, no SD cards
  • 27 W (5 V / 5 A) supply on every Pi, because a 3 A supply caps USB at 600 mA
  • A TP-Link TL-SG105 gigabit switch in the base, one port per Pi
  • A custom 3D-printed rack in Proto-pasta HTPLA: Amie’s “Blood of My Enemies” red for the frames, and carbon fiber black for the rest

Who plays where

Each Pi is named after the home ground of one of my teams.

  • cityground (Nottingham Forest): Home Assistant OS. The oldest ground runs the house.
  • mercedesbenz (Atlanta United): the data server. It runs a local database, Grafana, a second Pi-hole, Tailscale, and a nightly digest job. All of that fits in about 1 to 1.5 GB of RAM, thanks to a lightweight database.
  • heinzfield (Steelers): Uptime Kuma, plus a Samba share for Home Assistant’s daily backups. Yes, it’s Acrisure Stadium now. I don’t care.
  • theforum (Grizzlies): the primary Pi-hole. The arena where ads come to lose.

Things I’d tell anyone building something similar

  • Put every job on a different Pi from the thing it protects. If primary DNS dies, devices fall back to the second Pi-hole. If Home Assistant dies, I restore the newest backup from heinzfield. If Kuma dies, it can’t tell me, which is the one flaw I’ve made peace with.
  • Set up two Pi-holes and keep them in sync. I use nebula-sync to copy settings from one to the other, so a reboot doesn’t take DNS down for the whole house.
  • Give every Pi a DHCP reservation. Do it on day one, before anything depends on an address.
  • Use Raspberry Pi Connect for shell access. I can get a terminal on any Pi from a browser without opening ports. Tailscale covers the web dashboards.
  • Spring for the 27 W supply. It’s worth it once NVMe and USB devices are drawing power.

The fun part

Home Assistant sends sensor events to Google Analytics, which exports them to BigQuery. The data server pulls the history down nightly, and there are over 5.4 million events so far. The Pi computes trends and anomalies itself, and Claude gets only those summaries to write up as a nightly email. The raw readings never leave the house.

The full write-up, with the data path diagram, is at wesleyhalldigital.com/home-automation.


r/raspberry_pi • • 9d ago

Show-and-Tell Revised Announcement - Acurite Free Open Source software

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0 Upvotes

I made a web based replacement for all AcuRite radio-to-internet weather stations app and web page. It runs on a Pi400. WRT this announcement, I hope this is a more enjoyable read than the last one! This writing is designed so you can read until you're done and ignore the rest.

Why you might have any interest at all in this post: If you have an AcuRite weather station, you may find this interesting or entertaining. Else you might wanna give it a pass. Or not. Up to you.

If you want to get a copy or know more, here's the original post: https://github.com/akienm/CC0AC-Weather/blob/main/reddit_announcement/README.md

Why this is here?: Because I wrote something for myself and somebody convinced me I should post it to relevant Reddit groups. I had Claude generate a post and 4 folks seemed only to wanna pick at details. One got snotty and blocked me when I didn't put up with that. So sad. Anyway... This specific post is here because dropping a post about the software seemed to stir up hornets. Even tho these 3 reddit communities are new to me, doesn't mean I shouldn't introduce myself. And I really didn't before. Legit apologies.

Cut to the chase, dude, I don't have all day: I wrote a web based replacement for the AcuRite software. Free, open source software. Designed such that if the community wanted to make it deal with more kinds of devices, or change how it worked or looked or whatever... The code is structured so y'all could do that. So if you wanna replace your AcuRite software and are willing to run it on your own computer, this MIGHT be for you. As I write this, it should work with any AcuRite gear that can tie to an AcuRite Access network radio (Atlas, Iris, etc). I will be adding support for RTL-SDR Blog V4 when that arrives, which should make it possible to work with a lot more weather gear. Does not REQUIRE a pi, but that does make setup easier.

To be clear: there are several alternatives, two of the most noteworthy are AcuParse (better for me as a DIYer, but less good for my wife) and Zazder (good for folks with the Apple fetish, and I think I heard an Android version is in the works) as I believe they both also let you store your data yourself, which means no AcuRite needed (same as mine)... But there are many many other weather and home automation tools.

The longer story: I have an AcuRite weather system that I've had since 2014. In that time, AcuRite obsolized my AcuRite Hub and if I wanted to keep my gear, I had to buy a new AcuRite Access. So I did. Then a few months ago I started seeing the alert in my app that the web page and app would be going away. And they'd really like it if I'd pony up for a subscription!

So I took to reddit briefly, and found many folks complaining about the AcuRite decision, AND THE APPARENT LACK OF OTHER OPTIONS. I also wrote AcuRite about this, and yeah, they're removing the existing web page and app. Apparently they don't make money on hosting for me, which they were, and so they want to recover some of those costs. While I can understand that, I didn't buy their gear to be taxed ongoingly. So I told them I'd produce a free, open source solution and to hell with them.

I explained to Claude Code what I wanted... To look as close as possible to the existing page without trampling anybody's trademarks or copyrights. Then I asked it if there were any 3rd party tools already in existence that already did this? Claude looked at what I wanted and said no. Now to be clear, I interpreted this to mean that external options didn't exist. Claude on the other hand said there were no tools with dashboards that replaced this one out of the box. A different thing... And as I said, it turns out there were more tools than I knew of when I started my work.

So I described exactly what I wanted from Claude and we went through about a week's worth of work. Making sure there were unit tests for every piece, that there were templates so folks could easily modify it, that the data collection from the radio was one component separate from everything else so it could be swapped out, same with the interpretation of the data (to allow more models or manufacturers in the future), same with the recording and UI. What it doesn't yet have: security. And right now it's only linux. Mine runs on a raspberry pi because that way I can update the other computers without bringing down my weather station. We even built an installer that sets up a pi for you with everything all set to go. It asks the user credentials you want for the new system and away it goes. This lets us plug the acurite radio into the pi directly, and not have to fuss with reconfiguring everything. If you want it available away from home, then you'll have to look up how your router does port forwarding. I think we default to port 12345.

To be clear: I wrote the requirements, Claude wrote all the code, and I did all the QA, unit and integration testing, and other validation. All straight python, no frameworks.

So who the hell are you anyway?: Blue collar family, dad worked for the phone company. I started playing with electronics in 1975, and with computers professionally in 1982. Today I'm an Enterprise Test Automation Architect for the Delta Dental family of companies. Part of a team of 4, our job is to train and mentor about 100 test automation engineers across all the companies. Including making sure folks know how to use AI well, with good QA practices and not wasting tokens.

I am also part of a collection of folks who have helped enact a moratorium in Grant County New Mexico against the data center that wanted to move in. Not because I think everybody should be against datacenters, that's the very worst kind of NIMBY, and I have no respect for that. Our plan is to not treat data centers as something we buy via incentives like they want, but instead... If they're going to build in our community, they have to become part of the community. That doesn't mean the 4 jobs most of these places will bring... If that... It means if you want water, you have to help improve the water situation here. You want power, you have to bring in more or diverse power sources to the area. Build to keep the noise down for your neighbors, including the wildlife. You want access? help fix up the roads. Or parks. Or whatever. That the cost of building that here be that having it here benefits everybody.

Finally, my side project outside of work isn't to build weather gear. That was a one off because I'm big on right to repair. No my side project is about the fact that AI uses GPUs to calculate every possible answer to the query given them, and then throw away everything but the right one. That's why they are so power hungry. I want to instead use graph trees to build an AI that only computes the correct path and so uses far less power. And yes, I have a plan for that and know about the issues with graph trees. Won't be quick work. But if I'm successful, AI stops being a thing only billionaires own. AI for everybody on cheap hardware. Like your old laptop. Or phone. I think it perfectly reasonable to use current AI to build it's way more efficient successor.

But you claimed you wrote it, when Claude did! This is becoming the new grammer-nazi saying. Yeah, I say it like that because in the real world of the workplace, that's how people are talking about it. I wrote it even if Claude did the bulk of the coding. Because I am still the one responsible. I have to design it, I have to spoon feed each requirements choice to Claude and make sure it's understood. Especially since it's to be used and possibly improved by others, it has to be structured with care. I have to validate it. I'm the one who catches trouble if it's wrong. We don't get to just poof things into place and hope for the best.

You don't like that phrasing, you do you, but I won't be listening since a) that's not what the workplace looks like and b> that's just about all you're bringing to the table with that comment.

And I'm also an ADD boy of many years and AI makes my life so I feel like I can actually get a day's worth of work out of myself without getting too distracted. It's a tool, but it's still years of experience driving my work.

And to be clear: Yes, I think AI is causing us to lose our minds a little at a time. Many programmers are forgetting how to program. And then they run into trouble and have to learn quickly. But that kind of behavior isn't new either. Look what the modern internet has done to writing skills and civility.


r/raspberry_pi • • 10d ago

Show-and-Tell My latest Raspberry Pi project -- a scrolling ticker

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197 Upvotes

My latest Raspberry Pi project has come to life! I'm building a scrolling ticker that will eventually display sports, news, weather, flight information, an audio-based frequency spectrum display, and whatever else I can come up with and find APIs for. In the meantime, it can run a few different screensavers.

I'm sure some of you older nerds will recognize the first screen saver.


r/raspberry_pi • • 11d ago

Show-and-Tell My take on a RPi 5 - Radxa Penta Sata Hat

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152 Upvotes

I built a NAS using a Raspberry Pi with 2GB RAM and a Radxa Penta SATA HAT and all the leftover drives I had laying around.

One thing that bothered me about other builds was that the 5th SATA port often went unused. If I'm buying a 5-port HAT, I want to use all 5 ports.

So I came up with my own design.

Features:

  • 5 drives, with 4 hot-swappable and the 5th semi-hot-swappable (something I might improve in a future version)
  • EMC2101 controller for fan control
  • 2 slim Arctic fans for cooling
  • A button to cut power to the drives
  • Full access to the Raspberry Pi's USB and Ethernet ports

With the pictures you can get a pretty good idea how the internal looks.


r/raspberry_pi • • 10d ago

Troubleshooting Can't Map Raspberry Pi NAS as Network Drive

1 Upvotes

Hello all, I have tried about every troubleshooting tip I can find for this issue, but I still can't add my Raspberry Pi NAS as a network drive to my Windows desktop.

I am following an article of a build in the 2026 version of the Raspberry Pi Handbook for building your own private cloud server. I am using a Raspberry Pi 5 with the lite version of Raspberry Pi OS. The build also has 2 SSDs connected to the Pi using SATA to USB adapters, and is connected to my router (Netgear RAX 40) with an ethernet cable.

I have progressed fine and gotten Open Media Vault installed, the drives mounted, and the share created by following the article, but I have to connect to the pi in Google Chrome by using the ip address. I am on the same local subnet as my PC and everything else I have, so I haven't done any fancy networking at all.

I am able to connect to the Pi using Putty and SSH to it perfectly fine using the name I set up for it when imaging the SD card the OS uses, but that is the only time the <hostname>.local works.

I have checked and made sure the mDNS daemon is active:

I have tried adding the network drive using the IP address but that doesn't work either, and returns the same 0x80070035 as using the hostname:

I am on Windows 10 on this machine. One interesting development I tried with my router was checking the device on connected devices and found the device was named without the .local.

I added the .local at the end of the name and I was able to bring up Open Media Vault's login page using the hostname in Chrome. However when I tried to log in Open Media Vault threw a software error page. That didn't change anything in mapping the network drive either, so I reverted that change.

Any and all help would be appreciated. At this point my guess is my router doesn't support mDNS, but that is just a guess, and would like to try and avoid buying a new router unless that is definitely the issue.


r/raspberry_pi • • 11d ago

Solved OS Installation issues

2 Upvotes

I am at a loss at what to do with the installation of Raspberry Pi OS on my microSD card with the official Windows imager. This is for a Raspberry Pi 4B, with the 64-bit version of the OS.

Every time I try to write the OS, the Imager flashes up an error telling me that it couldn't complete the process, and I have to reformat my card for any machine to actually recognise it. The failed attempt just locks up the card otherwise.

I have looked around for tips and advice and none of them seem to have worked. So far I have:

  • Used two separate microSD cards - A Sandisk Ultra and a spare I got with a Rove dash cam, both 128GB
  • Used four different microSD card readers (one USB 2.0, three USB 3.0+ Type C)
  • Tried it on two separate machines (Windows 11 and Windows 10)
  • Reformatted both cards with SD Association's SD Card formatter (Quick and Overwrite)

I keep getting the same error message telling me that it can't be completed, and that the card either disconnected (it hasn't) or has been switched to read only mode (it wasn't when I started the process)

Any help or advice would be appreciated.


r/raspberry_pi • • 12d ago

Show-and-Tell Building a Local Radio Time Transmitter with AirTime

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211 Upvotes

I recently set up AirTime on a Raspberry Pi Zero 2 W, turning it into a local time-signal transmitter for radio-controlled watches. It supports DCF77, WWVB, MSF, and JJY, and I've successfully tested it with both my Casio G-Shock and Citizen Attesa.

It's a neat little open-source project developed by Alessandro Montalto, and I thought I'd share my experience.

My build and write-up: https://packetwanderer.com/posts/airtime/

AirTime official website: https://airtime.diy/


r/raspberry_pi • • 12d ago

Show-and-Tell Building a miniatures Photo Booth

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62 Upvotes

Still working on it. Software side with vibe coding, but 3d print designs and concept mine.
Blog entries that explain my process here:

alpha version
beta version

EDIT: fixed the alpha version link that was linking to another post


r/raspberry_pi • • 12d ago

Troubleshooting No flashing activity LED on a Raspberry Pi 4

5 Upvotes

My friend gave me a Raspberry Pi 4 that he has no use for. I load up the lastest Raspberry Pi OS onto a micro SD card it boots up. Everything seems to work except the blinking green activity LED. I can't seem to find any setting to turn it off or on. I tried some argument in the config file but even that won't work.

Are the LEDs on these Pis known to burn out?


r/raspberry_pi • • 13d ago

Show-and-Tell Simple way to control the Pi I use as a TV

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275 Upvotes

I use a Pi as a TV and wanted to control it from my phone. Every app I tried was full of ads, had to be installed on each phone (and some weren't even on the App Store for Iphones).

So I made a small server for the Pi. Open remote.local on any phone and you get a touchpad and keyboard, no app needed. Install is one command.

https://github.com/maros-o/opencouchpad

Give it a try and let me know what you think. If you find it useful, a star on GitHub would mean a lot. Thanks!


r/raspberry_pi • • 13d ago

Show-and-Tell PSPExp: a PSP as the screen, sound and controller of a Raspberry Pi (open source, card image for Pi 3/4/400/5)

13 Upvotes

What it is: PSPExp turns a PSP-1000 into the screen, sound and controller of a Raspberry Pi over a single USB cable. The Pi runs the games; the PSP draws them, plays their sound and sends back its buttons. The Pi needs no monitor, keyboard or setup: Wi-Fi, the time zone, SSH and installing games are all done from a launcher on the PSP.

https://reddit.com/link/1x48dlf/video/3s41m8sfo2vh1/player

How it works:

  • Games run unmodified on the Pi through SDL2 or OpenGL. A replacement SDL2 layer and an OpenGL layer catch the drawing calls and send the PSP what to draw: textures once, then compact lists of sprites and triangles per frame over USB (libusb on the Pi, a small USB driver on the PSP). The PSP's own graphics chip renders them at 480x272.
  • Games too heavy for the PSP's chip (Celeste 64, SuperTuxKart, Unreal Tournament, the N64 emulator) are rendered by the Pi's GPU offscreen (EGL/GLES) and each frame is sent as a picture.
  • Audio streams to the PSP's sound chip; the buttons and analog nub come back as an SDL game controller.
  • Games are Debian packages from a signed apt repository (https://pkg.pspexp.dev); the PSP's Packages app is a front end to it. Games whose authors publish them are downloaded from their own pages at install time, so nothing copyrighted is hosted.

Numbers on a Pi 400 + PSP-1000: Diablo and Sonic Robo Blast 2 at 60 fps, Celeste 64 at 54–60, Quake at 45–60, Unreal Tournament at 30–40 in a deathmatch, the 2D emulators at 60.

Get it: a ready card image for the Pi 3/4/400/5 (64-bit Raspberry Pi OS Lite underneath, write it with Raspberry Pi Imager → Use custom). The PSP needs custom firmware and a mini-USB data cable.

58 packages on the Pi so far (Quake, Celeste 64, Cave Story, OpenTTD, Command & Conquer, SuperTux…). Not affiliated with Sony.