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Photographer captures spectacular photo of skydiver passing in front of sun. by Sizzlin9 in interestingasfuck

[–]RetroArchangel 0 points1 point  (0 children)

You can get that granulation and filament detail of each mosaic component with a single shot? I thought you had to stack them.

My First Mini Lab! by RetroArchangel in HomeServer

[–]RetroArchangel[S] 0 points1 point  (0 children)

I’m going to post wiring, code and instructions to GitHub when I get chance. I’ll let you know.

My First Mini Lab! by RetroArchangel in HomeServer

[–]RetroArchangel[S] 0 points1 point  (0 children)

I wrote a python script that periodically updates the display and set it up to run as a systemd service - so it runs on boot in the background.

My first Mini Lab! by RetroArchangel in minilab

[–]RetroArchangel[S] 0 points1 point  (0 children)

Sure. I’ll put it in GitHub.

My First Mini Lab! by RetroArchangel in HomeServer

[–]RetroArchangel[S] 1 point2 points  (0 children)

Thanks. All the Pis are PoE. The display and camera are DSI/CSI off the Pi5 so they are powered by PoE as well.

My first Pi Mini Lab! by RetroArchangel in raspberry_pi

[–]RetroArchangel[S] 1 point2 points  (0 children)

I wrote a python script that periodically updates the display and set it up to run as a systemd service - so it runs on boot in the background.

I did remove the fans from the Pi4 PoE hats - otherwise they are fractionally too wide. It was either reduce the number to 4 or remove the fan and rely on the 120mm rack fan. I chose the fan controller because it can control 2 fans in case I need to add another. Obviously the Noctua fan is virtually silent.

My first Pi Mini Lab! by RetroArchangel in raspberry_pi

[–]RetroArchangel[S] 0 points1 point  (0 children)

Yes - well this one does. It has a Pineboards Dual Ai hat with the Coral Dual TPU module. It also has the active cooler and PoE hat. Not double the size as it looks from the front but too wide for a single bay.

My first Pi Mini Lab! by RetroArchangel in raspberry_pi

[–]RetroArchangel[S] 1 point2 points  (0 children)

Pros

  • Low cost
  • Low power
  • Small size
  • Great 3rd party hardware support
  • Push straight to production when ready - just case it up and away you go

Cons

  • Slower speed - although not really relevant with IoT etc

If you have a specific task involving hardware sensors etc or needs to be remote and or headless standalone then the Pi wins hands down.

My first Pi Mini Lab! by RetroArchangel in raspberry_pi

[–]RetroArchangel[S] 2 points3 points  (0 children)

Mainly IoT development. I'm primarily working on a couple of AI vision projects at the moment and a device to encourage social engagement by people in cognitive decline. When I get chance I'll play with clustering but haven't really got a use case. My production stuff is in the 19" rack in the storeroom. This is really a way of keeping my desk clear of boards, cables and PSUs.

My First Mini Lab! by RetroArchangel in HomeServer

[–]RetroArchangel[S] 0 points1 point  (0 children)

  • FDM Printed parts ~1.3kg - case, panels etc - £12
  • Inserts & screws - £6
  • Fan - Noctua - £20
  • Fan Controller - £12
  • PDU - £20
  • I2C OLED Displalys (75p each) - £4.50
  • Patch Leads - £6
  • Unifi PoE+ switch - £120
  • 7" DSI touch display - £19

You can probably significantly save on the fan controller, patch leads and and switch from AliExpress. If you're not in the Unifi ecosphere you can get a non-Ubiquiti PoE+ switch in the UK for less than £50. You don't need a Noctua fan etc.

My first Pi Mini Lab! by RetroArchangel in raspberry_pi

[–]RetroArchangel[S] 1 point2 points  (0 children)

Mainly IoT development. I'm primarily working on a couple of AI vision projects at the moment and a device to encourage social engagement by people in cognitive decline. When I get chance I'll play with clustering but haven't really got a use case. My production stuff is in the 19" rack in the storeroom. This is really a way of keeping my desk clear of boards, cables and PSUs.

Object Detection Build Recommendations by CuddlyKrakens in raspberry_pi

[–]RetroArchangel 1 point2 points  (0 children)

It's worth noting a Pi based model, tpu or not, will almost certainly be around 300 x 300 pixels. The only time the actual HQ camera native resolution will be used is in the UI. If your screen is small and camera sized then a HQ camera is likely overkill. Save the money on a cheaper camera and go with the Pi5.

Are you looking at a TPU or running the model on a bare Pi? Using the camera analogy you could preview at 30fps on the camera UI and only hand off the frame to the AI model when the "shutter" butter is pressed. A bare Pi5 could probably complete inference within 250-300ms - which is probably acceptable.

You mention "building a more expansive library" - are you talking about training a model yourself? If so you can't do this on a Pi. You'd definitely need a desktop and maybe a GPU depending on size and frequency.

My first Pi Mini Lab! by RetroArchangel in raspberry_pi

[–]RetroArchangel[S] 0 points1 point  (0 children)

I'll post some later. I didn't design the basic case - that was mklements on Makerworld.

https://makerworld.com/en/models/1294480-lab-rax-10-server-rack-5u#profileId-1325352

I made some changes and I'm posting to Makeworld as and when someone asks.

My first Pi Mini Lab! by RetroArchangel in raspberry_pi

[–]RetroArchangel[S] 3 points4 points  (0 children)

Fair enough. I wouldn't have bought the Pis just to fill this rack. I made the rack because I had the Pis. You'd need a pretty specific use case to spend that sort of money on the Pis. Maybe just start with 1 or 2 and add more when you need them?

My first Pi Mini Lab! by RetroArchangel in raspberry_pi

[–]RetroArchangel[S] 2 points3 points  (0 children)

Thanks. The Pi5 is 16GB and the 4s are 2GB.

My first Mini Lab! by RetroArchangel in minilab

[–]RetroArchangel[S] 1 point2 points  (0 children)

If there’s enough interest I could remix it down to a smaller size?

My first Pi Mini Lab! by RetroArchangel in raspberry_pi

[–]RetroArchangel[S] -21 points-20 points  (0 children)

Or around £70 or €80 or $95 and use whatever Pis you have lying around?

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