StereoPi Forum

Hello DaAuron,

All the latest CM4 get the newer firmware version, which was incompatible with the software in our stock images.

Now, both SLP and OpenCV images have been updated and should work out-of-the-box.
We've also updated WIki links to images and update files.

Hello bshi42,

Sorry for my late reply. Could you please write an email to [email protected] and provide the link to this post? The support team will check a few things, and we'll replace your board if it's damaged.

Hello ashchu,

It looks like your StereoPi power circuit might be damaged. It's a rare thing, but it happens. Could you please write an email to [email protected]? We'll proceed with the replacement.

You need to set a static IP address and network parameters for the direct Ethernet connection. If you're using SLP, please check the cosmostreamer.conf file. You can set static Ethernet parameters there instead of DHCP.

The "default" distance is 65 mm since it's the average distance between humans' retinas.

You can adapt this to your task. The bigger the distance, the better results you have for far objects, but closer objects won't be detected on the depth map correctly.

We've updated the Wiki with the latest links, as well as both OpenCV and SLP images. Could you please check?

Hello Mr. Burns!

I've checked the latest SLP image and I can capture the photo.

Could you please check the latest image (2024 edition)?

I hope this Wiki section (with 3D models) can help:
https://wiki.stereopi.com/index.php?tit ... _mechanics

It looks like CM4 issue.

Could you please try to re-seat CM4 and let me know the result?

Hello Ismud, Bookworm has a new video subsystem (libcamera) without stereoscopic support. We'll try to use libcamera, but it's challenging. You can use Buster, which has MMAL/raspivid/raspistill video stack. You can also download the ready-to-use Buster with the latest kernel and OpenCV installed: h...

Try these commands in the console to check each camera:

raspistill -cs 0
raspistill -cs 1

Each command should show you a preview for each camera. It looks like one of them has an issue with the ribbon connection.

Hello Fred,

I've fixed the broken links.
We also have two updated images (OpenCV and SLP, 2024 edition). The links can be found in the Download section of the Wiki, and here is the direct link: https://www.mediafire.com/folder/nzr90vj8wp1l3/SLP

Hi wywarren,

You are right. All V3 cameras need libcamera-based approach, but our SLP2 is built on older MMAL subsystem. We are working on the newer version now.

As for the "green sticker OS" - it's SLP2, and you can find some more details on it in our Wiki.

Hi bwegge,

Your issue looks similar to [urlhttps://forum.stereopi.com/viewtopic.php?f=20&t=1335&p=3366#p3366]this one[/url].


I'm trying to emulate this to reproduce this error.

Could you please run this command and share the result with us:

Arcturus you can capture two independent streams, one for each camera. After that, you can use GStreamer or another software to overlay one video frame on another. Since CM4 computational power and GPU is limited, you should optimize these part to get the result you need.

Hi Aur20,

The link to dt-blob.bin is sitting on the main Wiki page and named "dt-blob.bin for the CM3 and CM4". You can decompile it to see the DTS file.

Hi peterfiabigron,

Are you using SLP2? Please share an example of the issue; I'll try to reproduce it and find the solution.

The last fix was done a lot of time ago, and as a result, Raspberry Pi Foundation made some fixes in their firmware to eliminate this. We may have a new issue here.

Hi Hansi, It looks like you have a connection issue. If some ribbon cable lines are not connected, both cameras can still be detected (since they are using just a few lines for this), but the full data exchange (for image or video transfer) is impossible. At first I'd recommend you to check which ca...

Stereopi1 wrote: ↑

Fri Feb 03, 2023 12:09 pm

Hi,

Having a similar issue to this, after updating to latest firmware through SLP2 I can no longer access it in browser. Camera still streaming fine to monitor.

Which SLP2 version do you have?

Hi iPutBack, I have no DK2 nearby to test, so I can't confirm the settings. Did you happen to try to test this config using regular Raspberry Pi 4? (Pi3 is not good, but RPi4 has the same CPU as CM4). ENOSPC means insufficient video memory; you can try to increase GPU MEM in config.txt Also, did you...