Document neat CM4 projects/accessories #25
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The Gumstix Raspberry Pi CM4 Development Board, which has a built-in NVMe slot (I presume it is consuming the PCIe 1x lane). It's $130, and backordered. |
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On release day of the CM4, Gumstix had already produces the following hardware and adaptors for the CM4: The CM4-CM3 adapter also works with the current TuringPi (note the inclusion of a Google Coral AI accelerator): |
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Another interesting project, the PiKeeb:
Seems to be a combination mechanical keyboard + CM4 board (similar to Pi 400 in general design), with the addition of a fold-out screen; more details are on the project's subreddit: https://www.reddit.com/r/PiKeeb/ (would be nice to have a page somewhere with consolidated info, because you kinda have to read around in that subreddit to figure out everything the board should be able to do). |
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Another interesting project, the StereoPi V2, for stereoscopic photography/video (interesting application for robotics too):
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User u/mebs_t on Reddit posted this Compute Module 4 NAS PCB with PCIe board:
The idea is to have that board with the CM4 connected internally to some drives in a tower enclosure like:
The board is documented in this GitHub repo: https://github.com/mebs/CM4-NAS There are some good links for those interested in putting together a similar kind of project. Also in that thread I found out that Gumstix is offering free manufacturing for CM4 designs through the end of the year—probably some strings attached, but an interesting offer nonetheless. |
geerlingguy
changed the title
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Uptime Lab (www.uplab.pro) posted this blade server concept to Twitter:
It looks like it wouldn't be the most complicated PCB to manufacture, and could hold up to 22 devices (176 GB RAM, 44TB storage with 22 2TB NVMe drives. Gigabit backplane maximum, though, so it wouldn't be able to be fully utilized practically (more to come on why in my next video!). |
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Another really cool idea is the Piunora from timonsku on Twitter:
It has a slightly custom layout, but features an M.2 B-key connector on the bottom (something many have desired), and tons of other niceties that make it a well rounded little prototype. Not available for sale, but something like this could be a popular option for those of us who want a 'Pi 4 but with built-in NVMe on the bottom' :) (@timonsku was also the person behind this dead-simple carrier board featured on Hackaday.io.) |
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I need to stop looking at this thread! Nice collection Jeff. |
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Someone should design a nice small board with a few onboard SATA + power ports. |
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I would love to see a little carrier board tuned for cyberdeck makers. Onboard battery charging plus boost to get us enough amps for all the things, power out for additional devices too full sized hdmi out, 4 USB, ethernet etc (basically a full pi4 with battery management and a few extra terminals for power). |
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It would be cool to have something similar to the Piunora, that would expose the PCIe interface as a Thunderbolt (or USB4?) port. I'm not sure how complicated it would be to implement something like that, though. |
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Looking for a board that has a SuperSpeed (aka USB 3.x) USB Client port. |
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Ethernet port in Piunora would have been nice |
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Another project that showed up on the radar today thanks to @JorisBryssinck, the CutiePi tablet, an open hardware design with a target MSRP of $229 (including screen, battery, and a CM4 2GB WiFi/BT Lite!):
Even though the website still mentions the CM3+ Lite, they recently announced an upgraded design using the CM4:
EDIT: Update on the CutiePi — it lives! https://twitter.com/penk/status/1341211268552658944 |
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Anybody found a minimalistic carrier board with only USB C for instance (data + power), so I can use the CM4 like this? https://www.youtube.com/watch?v=IR6sDcKo3V8 (emulated Ethernet via USB c in order to ssh into the device) |
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Looks like there's also the MCUzone CM4 4G:
Video: https://www.bilibili.com/video/BV1mi4y1V7qw Forum posts: http://www.mcuzone.com/forum/forum.php?mod=viewthread&tid=34195 And gathering what I can from translations, it seems the board is tailored for use with a 4G or 5G modem (through an onboard mini-PCIe slot). The board as pictured has "4K HDMI output, Gigabit wired Ethernet, 4G LTE Cat4 network, dual USB host, and USB-C power supply interface." |
Power would still be an issue but... https://www.seeedstudio.com/M-2-to-SATA-Converter-5-Ports-p-4726.html |
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I'm frankly surprised that there isn't yet a project or crowdfunding drive to create a smartphone around a CM4. So with a smartphone form factor, including a touch screen, 4G modem, the ability to make voice calls, etc, but having an interface for a CM4 (or compatible device) instead of an integrated SoC. You wouldn't even have to start entirely from scratch for something like this. You could basically take the schematics of the PinePhone and/or the LibRem 5 (I believe they are both open source hardware), and use those as a basis. The advantage would be a phone that would not only be open with out-of-the-box mainline Linux kernel support, but upgradable as well. (Let's just hope the Raspberry Pi foundation will not make incompatible changes to the Compute Module form factor so soon again, like they did between the CM3 and the CM4.) |
mSATA has some of best performance/watt ratio. The Samsung PM851 uses <200mW in active use. |
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Another new NAS board, from @olvint this time: https://github.com/olvint/CM4-NAS-MiniPCIE — It's a fork of https://github.com/mebs/CM4-NAS with a mini PCIe slot (instead of full-size). Pictures speak louder than words:
That looks like this little IOCrest mini PCIe card with the ASMedia 1061R chipset for $27. Syba also makes a full-size mini PCIe card with 4 SATA ports for $31. |
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Wow! There are so many cool projects on course! I hope that EdgeTPU guys finish the work to get the MSI-X support done and ready to deploy 🙏 |
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Could also check this out: https://twitter.com/Nicho810/status/1337210218980118529 Dual gigabit Ports for CM4, soft router options :D |
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@ArthurVnL - Apparently this issue is getting a bit too long; that board was already mentioned earlier (in the folded section of comments): #25 (comment) |
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Just found this cool looking NAS board for the CM4 on reddit: |
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This seems a decent use for github discussions? Though I do like having this as gh issues so i can view from the terminal... |
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@SuNNjek - Yeah I spotted that too! It looks like it's a 4x SATA carrier made for super compact gigabit NAS devices, more details at Wiretrustee:
I especially like that little separate status and power board—you could make a really polished Pi NAS out of this thing. I'm trying to see if I might be able to get access to one to play around with it :) |
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New video posted today: Raspberry Pi CM4 Boards arrive! Waveshare PoE and PiTray mini. |
Guys, considering how cheap 1Gbps switches are it probably doesn't make much sense to reduce PCIe Gen2 x1 to single RGMII pair just to make switching works on CM4. I've been thinking about this a lot and I think that the best approach for "CM4 as nextgen routing platform" would be using PCIe switch and two 2.5Gbps controllers, e.g ASMedia AS1182 + 2xRTL8125. This will allow us to make CM4 gateway in the following configuration: PCIe would allow us to push ~4Gbps throughput. I also do believe that SoC is powerful enough to make it happen. We just need the right software, i.e XDP+eBPF. I will try to work on OpenWRT and Polycube (https://github.com/polycube-network/polycube) integration to make it happen. |
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@dmitriarekhta - Check out https://pipci.jeffgeerling.com/cards_network/syba-dual-25gbe-pcie-nic.html — I've been doing a bit of testing with a dual-2.5GbE card and also documenting performance characteristics. |
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The Retro Lite CM4 is a sleek, handheld gaming console to be completed early 2021. It is a collaboration project between myself and Dmcke5 on the BitBuilt forums. It is modelled in SolidWorks and the PCBs were designed in EAGLE. The project is a work in progress, but we hope to have it all done very soon! Final shell will be done in 6061 aluminum, but we have made some renders and custom prototypes already to get started. We still can't get our hands on the latest compute module as at the time of this post, but hopefully we can get one soon. Everything will be on custom connectors and require no soldering for assembly. Current feature list: Retro Lite CM4 Left PCB:
Main PCB:
Right PCB:
Check out the photos below. If you are interested in following the worklog as we build it along the way, you can check it out below. A lot of information I have left out can be found here:
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@StonedEdge - Those renderings are beautiful! Thanks for sharing this project, it looks like the CM4 Handheld project mentioned earlier (which was in the Wii U form factor) but narrowed down even more to the point this thing could be a stand-in for a Switch Lite! |
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Just a heads up—I'm going to be creating a new section on the PCIe database site for 'CM4 boards', so I can better document/catalog all these amazing projects (and a few more that I'm privy to but sadly can't share yet...). I'll hopefully be moving many of the boards mentioned in this issue into that new section of the site in the coming weeks. It'll also make it easier for me to track which of these boards are commercially available, since I know a lot of people really want to buy some of them, but many are being built as a one-off or with an open source hardware license, and being able to see that at a glance would be very handy. Follow issue #78 for progress there! |
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Alrighty then. That was a fair bit of work, but I think I've cataloged every card from this issue on the site at this point in the PR #82 I will merge that, and there will be a new section on the site: https://pipci.jeffgeerling.com/boards_cm For any future passers-by, please open a new issue for any new boards you'd like to highlight, and feel free to follow the template style of one of the existing boards to place the board on the site in a PR too. I like having more detail in the GitHub issue so I can link back to it in case people want to discuss it more. Also note that I will not put any board into the top 'production' category until it is able to be purchased and shipped. No prototypes, no 'it is already being produced'—if I can't order it, it ain't going up there. |
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A sneaky preview for audiophiles — CM4AES from Pi 2 Design: https://www.pi2design.com/coming-soon.html |
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This one looks interesting
…On Fri, Mar 5, 2021 at 8:20 PM starchivore ***@***.***> wrote:
A sneaky preview for audiophiles — CM4AES from Pi 2 Design:
https://www.pi2design.com/coming-soon.html
<https://camo.githubusercontent.com/9cd3729fa1e841fc3fd55fc99cf6083bd91d23a5225b88bf7da2b6da885a8077/68747470733a2f2f692e696d6775722e636f6d2f7750646b63706c2e706e67>
<https://camo.githubusercontent.com/40ddf9a89f8d5128cfaca89dcd1ea1ec759b4f505a6c17f36a7b4de41dbf2c0b/68747470733a2f2f692e696d6775722e636f6d2f785158503135592e706e67>
<https://camo.githubusercontent.com/0df7484dbbd430d2f363dd8da8a01a527f207325695c02635b9c93a3a3a72bec/68747470733a2f2f692e696d6775722e636f6d2f4c4252315645342e706e67>
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@starchivore - This issue has been closed in favor of opening a new issue per design (so I can aggregate them all on the site here: https://pipci.jeffgeerling.com/boards_cm — can you add that as a new separate issue? Looks interesting! |
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@geerlingguy the scalenode blade has been getting some updates to it recently https://github.com/antmicro/scalenode/tree/develop looks pretty interesting. |
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@warmwaffles - I added the Scalenode here: #119 — please feel free to add anything that's missing in that issue or if you want a PR to improve the page on the site! |
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Just wanted to note the Retro Lite CM4 is nearing completion:
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Is this open source ??? |
…the site boards section.
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Live site page for the MCUzone CM4 4G board: https://pipci.jeffgeerling.com/boards_cm/mcuzone-cm4-4g.html |
Has there been any movement on getting Polycube running on CM4? I asked because I have been able to successfully build polycube, but when attempting to run Here's my write-up: https://tinycomputers.io/posts/polycube-network-on-arm-hardware-WIP.html |
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Hey guys very interesting discussion here. Iam looking for an electronics engineer for a custom pcb layout for raspberry cm4 module. it involves: -poe If someone is interested in that freelancer job, please contact me: |
hello would you share me a Gumstix Raspberry Pi CM4 Development Board schematic or board file because i just developing the same system and got some trouble on power, the current measured is 0.08a which my target is 500ma - 1A |
Can I send and receive sms and make calls via this modem ? |
and others
For example, today @BG5USN sent me this prototype version of the PiTray mini: https://twitter.com/BG5USN/status/1328331941536477189 (Edit: Now it's available on DFRobot for $14.50! — and check out the main website for the board)
Basically a tiny CM4 IO board. Very neat, great for just working with CM4s (but probably wouldn't be a great replacement for the Pi 4 model B itself), and it has full-size HDMI :)
There's also the Turing Pi 2: https://turingpi.com
And CM4 MATX, a micro-ATX compliant board design so you can securely install a CM4 inside an ATX case with a PCIe slot in the right place: https://github.com/TheGuyDanish/CM4_MATX
I don't know where exactly I'll document these things, but I know I'm excited to see some of the different builds people make!
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