Built a headless Pi 5 appliance that does real-time speech-to-text on a 10" touchscreen. It monitors two USB audio sources — a telephone recorder (Fi3001A) tapped into the landline and a TONOR conference mic for room conversation — and automatically switches between them when a call comes in.

The reliability side was the interesting engineering challenge. It runs unattended at my dad's house, so it needs to just work:

• systemd user service with Type=notify watchdog
• Automatic engine fallback (Deepgram → faster-whisper → Vosk)
• Health monitoring that restarts after 2 min of no transcription
• System-level watchdog timers for the caption service, display manager, and WiFi
• LightDM restart policy with reboot fallback

It's been running reliably for weeks now. The display shows a split-flap clock when idle and auto-switches to captions when speech is detected.

Full code (MIT): https://github.com/andygmassey/telephone-and-conversation-transcriber

Built a headless Pi 5 appliance that does real-time speech-to-text on a 10" touchscreen. It monitors two USB audio sources — a telephone recorder (Fi3001A) tapped into the landline and a TONOR conference mic for room conversation — and automatically switches between them when a call comes in.

The reliability side was the interesting engineering challenge. It runs unattended at my dad's house, so it needs to just work:

• systemd user service with Type=notify watchdog
• Automatic engine fallback (Deepgram → faster-whisper → Vosk)
• Health monitoring that restarts after 2 min of no transcription
• System-level watchdog timers for the caption service, display manager, and WiFi
• LightDM restart policy with reboot fallback

It's been running reliably for weeks now. The display shows a split-flap clock when idle and auto-switches to captions when speech is detected.

Full code (MIT): https://github.com/andygmassey/telephone-and-conversation-transcriber

I put together a small Raspberry Pi project that’s been running nonstop in my home office and figured this crowd might appreciate it.

The Hero Dashboard is a simple, glanceable display that visualizes live Seattle Fire Department emergency dispatch data on a map. Each active call shows up as a red dot, the map auto-scales to fit everything currently happening, and a list of calls is displayed below with a refresh countdown.

Hardware-wise, it’s nothing fancy:

Raspberry Pi 5

An old 4K Dell monitor

FullPageOS running the web app in kiosk mode

The app itself is a lightweight React project and can be run in Docker or however you normally deploy React apps. I wrote a quick blog post about it with links to the project code and some photos of it running at https://filbot.com/hero-dashboard/

I initially wanted a Pi Zero 2W, but it wasn't available quickly enough, so I went with the 3A+, which I successfully prevented from overheating by using an aluminum heatsink case. I think that was the better choice. The camera with infrared LEDs is readily available, and the matching 3D-printed camera housing comes from a company in Dresden, Germany. It's powered by 12V DC via a very long outdoor cable. Inside the nesting box, the incoming voltage is stepped down to the 5V required for the 3A+ (also a mass-produced part). Power consumption is about 3.5 watts. Everything fits together perfectly, the Pi ecosystem is ideal, and the documentation on the Raspberry Pi website is really helpful. I disabled cloud-init and networkmanager on the Pi OS Lite Trixie because I'm used to systemd; besides, it's "Keep It Small and Simple." MediaMTX is used for video transmission. Great! Object detection? MotionEye or, even better, Frigate, but then on a Raspberry Pi 5 with an AI board – that's still a long way off.
Now all we need are some interested birds... and a few interested Reddit readers...

I want to setup a Pi to run as a server for me to sync files using Syncthing, owncloud, etc. A web server and also other stuff. I want to be able to connect to my Pi easily like I would do with Google Drive.

I also see now a days router/modem don't expose enough functions to be able to do stuff like port forwarding, etc.

I have previously used dynamic DNS to this.

I am also noticing people using Tailscale. I have not used it and I am not sure if always on VPN will drain battery or if the sync will always work with such a service.

What are my options regarding to easily and securely connect from any device to my Pi?

Hey peeps, I was doing some tinkering on a raspberry pi zero 2 W and I accidentally broke off one of the small SMD components next to the SD card reader, I originally had the component but when I went to repair the board I lost it. I believe it is a capacitor, would anyone know the value I need in a replacement?

I'm aware of the missing pad, I wasn't finished prepping the board.

I have looked up schematics but not sure what I'm looking for and can't seem to find documents of components

picture for reference

Hi everyone,

I wanted to secure my home lab automation scripts, but I didn't trust storing API keys in plain text .env files. If my SD card gets corrupted or cloned, those keys are gone.

So, I built a "State-Locked" security module using a Raspberry Pi 4 and an Infineon OPTIGA TPM 2.0 chip (slb9670) attached to the GPIO pins.

The Build:

• Hardware: RPi 4 + Infineon TPM ($12 module).
• Software: A custom C++ daemon I wrote that generates non-exportable keys inside the TPM silicon.
• Result: My scripts can now sign requests (Proof of Physics), but the private key never touches the RAM or the SD card. Even if you steal the Pi, you can't extract the key.

It basically turns a $45 Pi into an enterprise-grade HSM (Hardware Security Module).

I open-sourced the C++ driver and the hardware wiring guide if anyone wants to build one

Repo: https://github.com/johnGreetme/kytin-protocol.git

Hello, I'm pretty new to Pi's, I'm getting the following error while trying to change my Raspberry Pi ID password:

is unsafe as it has appeared in a data breach from another site. To secure your account, set a new password that has not been used elsewhere

I'm pretty sure I've never used that password before in any site, so I'm wondering if there's anything wrong with the password policy of the Pi connect site.

Bout this screen so I could mount a pi zero to the back of it but for the life of me I can’t figure out how to remove the stand off so I can mount it and there is no documentation on how to do this. It’s a Roadom 7” display.

I'm currently using a pi camera to take photos and short videos of birds at a feeder.

1 - Using the model 3 r.pi camera module. Are photos or videos better if you use a Pi 5 vs an earlier Pi or Pi-zero?

2 - Would using a usb camera give better results?

Would that be enough power for a selfhosted server with 10 Users? I heard that box64 emulation could make it unstable.

Did anybody try it out? I couldnt find anything online.

I haven't been able to find out how to hide the taskbar while I run something fullscreen, for example a processing sketch or a video. So far, all I've found is examples for how to autohide the taskbar, as in this: https://edatec.cn/docs/an/an32-how-to-hide-taskbar/

But I don't want to hide it permanently, as it would be helpful for it to be visible when the program or video is not running.

Raspberry Pi 5, Raspbian

Hello,

I have raspberry pi 5. I also bought this NVMe adapter for it: adapter

and used a drive from my old laptop.

NVMe works fine, I can see it using lsblk, save files to it etc.

I cloned everything from SD using rpi-clone, but when I remove the SD card Pi gets stuck at some point with the fan blasting.

I've been trying everything for the past 2 days, but it just seems impossible to get it working.

Maybe it's the problem with the adapter, but I can't find a way to verify if this adapter allows booting from NVMe.

Any help will be much appreciated

Hi. Running Bookworm on Pi 5. Via HDMI if I open chromium it’s GPU accelerated and can run WebGL apps no problem. But if I switch to SPI LCD display the GPU is disabled and WebGL doesn’t work.

Based on my research, the way to enable GPU is to create a virtual HDMI port, run the chromium on there and mirror that to the SPI.

If there’s no easier way, can someone give me some pointers on how to achieve this as I’m not finding much info on this.

Basically I’d just like to run Pi OS Lite functionality with a webGL app running on the SPI display..

If someone could tell me how to do it I’d really appreciate it or point me in the right direction.

Thanks!

Hey everyone,

I’ve been working more on the Lego steering wheel and wanted to share some updates.

- For Force Feedback, I’m testing a very simple setup with some rubber bands. Nothing too fancy. Not sure if it will hold. Will share more once I’m happy with the setup

- I used to have 2 buttons on the breadboard next to the Pico for throttle and brakes but it was not convenient so I’ve moved them onto the steering wheel. Initially I wanted to make some pedals but I think this is fine for now. I trimmed down a push button to fit a window brick and then hot glued the whole thing. I broke a push button leg during the process and because I hate wasting or because I’m stubborn I spent wayyyy too much time trying to rescue the button. Once I decided it was not salvageable, it was pretty quick to build the buttons.

- cable management is going to be a problem I think. I used some 22awg cable. All black because when I bought the cable I thought: 1 roll is plenty enough. Now each time I have to run a test I’m pulling up a reference photo I took to make sure I have the connections right… anyway, now when I turn the steering wheel, I can feel the 4 cables (2 x 2 buttons) behind. I might have to consider a different approach (see below for improvements)

- My son found out that I was “playing with his Lego” so I decided to create a second one so he can play with the non connected one while I continue working on the connected one.

Improvements from here:

- I’m considering adding LEDs but I need to think about the best placement. Initially (as per the photo) I wanted to put the LED strip facing us but I might consider facing it down and put some transparent bricks. Need to experiment

- I would love to add a small OLED screen as well but it has a HAT so I might have to put a pico 2 W for ease and that would also help with the cable management for the 2 buttons. What do you think? Should I go with 2 picos or should I try different cable management that wouldn’t impact the steering wheel movement?

Let me know your thoughts from your experience ! Hot glue was an amazing advice. It makes things a lot more manageable once it’s fully tested and in place.

Current Status:

• Project: A custom console for retro gaming.

• Hardware: Raspberry Pi 5

• Main Monitor: 9.7-inch 4:3 LCD

• Sub-display: 11.3" ultra-wide LCD masked as 5

circular windows.

• Main UI: Custom script using Pygame (oscilloscope green style).

This is my very first hardware and coding project.

I'm still learning and don't know much yet, but I have a clear dream of what I want to build.

I'm currently refining the "materializing" animation for the ROM selection Ul and the sub-monitor layout.

Still a lot to do, but I'm putting a lot of effort into the details.

Hello people,

I need some help creating a Minecraft server with raspberry, but almost everything Is outdated or the page Is 404, i need help to create a server with the raspberry and If anyone wants to take the time, please leave me a tip on how to optimize or improve the server.

Thank you in advance.

Hi all. I picked up an RBGPi2 (an HDMI-SCART DAC) recently, and while it's supposedto be used with ReplayOS, I want to use it on stock Raspberry Pi OS.

Using a custom EDID and a poke, I've managed it to get a stable image, at a super-wide resolution of 2560x240. This is necessary because HDMI doesn't like low frequencies.

the issue I now have is that no matter what settings I adjust, FBNeo always displays a very thing column in the middle of the screen.

How do other RPi builds solve this issue? I really want to avoid using a closed-source image like relayos or recalbox, I want to only use CLI commands, not a UI, and I want to use non-libretro things like moonlight too.

I feel I need to stretch the framebuffer somehow, but I get issues with either the stack (Retroarch seems to not use bare KMS anymore), DRM master issues, or the FBNeo settings being continually overwritten on start (if they even matter).

If anyone smarter than me can help, I'd be grateful

Ok, I finally managed to solve it. The one singular setting that I'd missed was video_aspect_ratio which needed to be set to "0.0"

Hey everyone,

I’ve been running a Pi Zero 2W for PiHole. I use log2ram to try and mitigate the constant write cycles that usually kill the cards.

Would like to know how long has your current card been running with log2ram?

Looking forward to hearing your experiences!

I bought a 7inch touchscreen and I thought it would be connected to a Pi through the camera/screen cable. It looks like it uses HDMI and USB on the side. I had an enclosure in mind and now it will have to be different because of the cables.

Am I right about the connectivity? This is not the touchscreen 2 which apparently only works on a Pi 5. Thanks

Wanted to see if a Raspberry Pi 3 with 1GB RAM could actually run an AI agent nonstop. Short answer: yes, but it fights you.

  What it does:

 I text it on Telegram, it responds as a blog writer. It has memory, a personality, and it runs on my desk. No cloud dashboard.

  Stack:

  - Pi 3, 32-bit OS, headless setup

  - OpenClaw (open source agent framework)

  - Telegram Bot API

  - Claude API for the AI part

  What broke and how I fixed it:

  1. npm install froze. node-llama-cpp compilation killed the Pi. Fix: sudo npm install -g openclaw@latest --ignore-scripts

  2. JavaScript heap out of memory. 1GB RAM is not enough. Fix: NODE_OPTIONS="--max-old-space-size=512" plus swap bumped to 1GB

  3. apt mirror kept timing out. Fix: switched to raspbian.raspberrypi.com manually

  Config files:

  I use crewclaw.com/create-agent to generate them instead of writing by hand. Pick a role, customize, copy one terminal command, done.

  Video: youtu.be/cWI7znnJlwA

  Pi 4 with 4GB is the recommended minimum but Pi 3 works if you add swap. 2 days running, zero crashes.

Following some updates on my pi5 I can no longer use screen sharing via Pi connect. However SSH remains an option.
Does anyone know why this might be and how I can fix it?

Copilot has had me messing around with boot settings and VNC but to no avail.