#HA Yellow - Raspberry Pi CM5
76 messages · Page 1 of 1 (latest)
I'd hit up search - here and the forum - that's been asked before
its been mentioned a couple of times and i see some PR's about support in the HAOS repo. but i didnt see any official plan or what the proceedure might be. But I may have missed it to be fair
I do know the high density connector has a different pin out than CM4 to incorporate 2 extra usb 2.0 ports
Well, that ensures the answer is no then 😄
Not necessarily. I’m sure some are common between the two… so if yellow doesn’t use those that have changed… it’s possible… but very unlikely
They created a different CM5-IO-Board due to the pin differences, so I don't think the chances are too great.
My next doubt would be the fanless thermal design of the Yellow. Similar to the Pi5, the CM5 will likely produce more heat.
looks like its working on some cm4 carrier boards so there must be some degree of hardware backwards compatibility. I guess it depends how the yellow is routed i guess. heat is a fair point too.
However - I would be glad, if my prediction would be wrong 
yeah i have been considering switching from the yellow to a n100 (or maybe the new n150 i guess) however if a cm5 upgrade works then may stick on the yellow.
16 GB RAM and 128 GB eMMC would be nice as well - whenever that version will be available.
it will be cool but honestly at that point i feel there might be better options for home projects but for industrial usess it will be amazing to have have that as an option.
Just looked up the price at a Danish seller. 157 EUR for the 16/64 variant without WiFi, 162 EUR for the one with WiFi. Availability expected during Q1 2025.
A second hand SFF PC makes more sense
yeah your starting to get to the price of a new minipc there too. and you still have to add the carrier board/case/PSU/etc...
dont get me wrong, i think it would be great for alot of embedded applications but when it comes to home projects i think it doesnt really scale in value over other options
I saw this in the HAOS rc1 update changes: https://github.com/home-assistant/operating-system/pull/3667
Also it's a fair bit more hungry for power, should be okay with the DC PSU but not sure if the PoE+ necessarily can support the specification defined power supply
yay
So we have the official confirmation. 🎉
was wondering what the timeline is on 14.0, check github... its in RC2... the news gets better
Do we know if the Coral TPU works now through PCIe?
I guess it might be a moot point these days as there are probably better devices 😄
We don't know yet. Nothing on the offical blog post about that.
But there might indeed be hope.
Let's see, when the higher storage and RAM ones are actually available in the shops.
I'm going to upgrade my yellow to an N-100 based box. Bee Eq13 16GB 500GB SSD $189. Price/performance vs Pi 5 is no contest
So there are currently 24 different CM5 modules available (https://datasheets.raspberrypi.com/cm5/cm5-product-brief.pdf page 5). Which one should be bought? Currently favoriting CM5108000 (Wireless, 8 GB RAM, no eMMC)
I wouldn't recommend anything with less than 4GB RAM.
Wireless isn't that important, IMO. WiFi connection isn't recommended and ESPHome BT proxies are usually better than the onboard BT radio.
From what I've seen only the 4GB RAM/32GB eMMC model is available right now, I'm waiting for the 16GB model in February
16GB might be overkill (who doesn't like that
).
My CM4 has 8GB and I didn't run into limitations, yet.
It is at 66% now - with Discord running in a RAM hungry Firefox add-on via a remote connection. 
Depends where you look seems like some partners have most of them in stock in the next days
Found that at a partner when they expect stock https://raspberrypi.dk/en/raspberry-pi-compute-module-5-cm5-is-here-now/
https://www.asdstore.de/de//produkte/raspberry-pi-compute-module-5-8gb-ram-lite-ohne-wifi.html here for example shipping is expected in 7-14 days to Germany
17-01-2024
24-01-2024
31-01-2024
I think they are a bit optimistic with January 2024
February for the higher tier ones.
Running on bare metal HAOS on a yellow and only using 1.8G of 8G ... 4GB would probably be fine
my yellow with cm4 has 4gb ram and havent had any issues. but it does shoot up in usage if i am using multiple addons to do stuff at once (vscode uses a fair bit for example, but thats expected. if i change to a cm5 i would probably go for 4 as its probably not worth the price jump to go to 8. but between now and me hyperthertically buying one... who knows what will happen
So I got the CM5 today, since HAOS 14 isn't released do I just take the img.xz file for the yellow from the GitHub RC2 release?
I'd look at the release notes first. But I think, that should be fine-ish (it is still a release candidate, it might still have some issues)
Trying it out now, I just spent 10 minutes pulling my hair because rpiboot didn't work as expected
But that was just the cable 😄
No problems with the on-board radio? And are you using the GPIO pins for Z-Wave for example?
I don't really need the radio or use Z-Wave, I did notice the Bluetooth integration failed because it was still referencing the old hardware but I just set it up again
I wonder if there will be updated Yellow to support faster pcie-bus of the CM5
If I get the schematics right, the PCIe slot is connected directly to the CM4/5. So it might already be faster.
Looks like mine is running PCIe 2.0 x1 currently, which makes sense since I didn't change the firmware config
And changing the config to allow PCIe Gen 3 did change the reporting to 8 GT/s
Do I need to pick the CM5 with eMMC or can I solely rely on m.2 ssd?
Also doing hdparm says it can read from the nvme at ~760 MB/s so that seems about right
Both will work apparently
It's getting pretty toasty though
I wonder if I should play with using the CM5 heatsink rather than the one from the yellow
The storage options are the same as before. Just the installation process is different. The USB stick method doesn't work with the CM5, so you would have to flash the eMMC with rpiboot (or the NVMe with the mass-storage-gadget64 option) or to use a USB adapter to flash the NVMe with a PC.
I'm not sure, if the additional contact area would help much in the confined space of the case.
CPU throttling is expected.
True
If I remember right, a Yellow user from Australia created a 3D printed case with a fan for cooling. But in my opinion, it would ruin the look and feel (no fan noise).
I just looked at the original CM5 passive cooler. They put the cooler's screws through the CM5 and the carrier board. Not sure if that fits with the screw mounts on the Rev 1.3 boards.
Ah, well currently It's doing fine so guess I'll just let it run a little hot, maybe look into a small undervolt if it starts acting up
I tried updating to 14.0 stable, but after the reboot the yellow is just stuck with a solid green LED
Any idea what that would be? Or should I just reflash now the stable version is out?
Oh I just saw the GitHub release, didn't realize those weren't connected
It should be promoted soon.
*** hurriedly makes a backup in preparation for update ***
I'm having issues accessing my CM5 Yellow with NVME
I've chosen the emmc as boot drive and it's got an IP but when to do http://ip:8123
it doesn't connect
I can't ping it
The trick was to download and flash with the haos_yellow-14.0.img from the github releases page
