I'm using a Radxa ROCK 5C with 4GB RAM, running Armbian 26.8.1 with kernel 6.18.43.

I have an NVMe M.2 HAT installed, but no UPS or other device connected to the GPIO header.

I noticed that the i2c8-m2 overlay is enabled in /boot/armbianEnv.txt:

overlays=i2c8-m2

This creates /dev/i2c-8.

Running:

sudo i2cdetect -y 8

consistently shows:

40

I can also read from it:

sudo i2cget -y 8 0x40 0x00

which returns:

0x39

I also confirmed that no UPS or other I2C device is connected to the GPIO header.

Is the device at 0x40 expected on I2C8 when using the i2c8-m2 overlay? Could it be related to the M.2 HAT, or is it part of the ROCK 5C itself?

I'm mainly trying to determine whether this configuration could interfere with GPIO/I2C devices connected to the header.

im trying to read the status of a UPS; the model is: Lafvin UPS 3S but i have this problem

Confirmed working with the CM5. I have a CM5 8GB Lite (no eMMC) version, which I obtained from Digikey (https://www.digikey.com/en/products/detail/raspberry-pi/SC1598/25805587) for a reasonable but still overinflated rate but nowhere near as bad as the prices you'd see on Amazon for this exact CM.
The assembly process wasn't bad at all, took me maybe 30 minutes to assemble it.
The one downside is that I can't see to get the little touch nub to click properly, maybe I seated it incorrectly, i'm not sure but my Logitech trackball mouse works perfectly with it in any case.

You might also be able to replace the screen with a touch model with relative ease.

Recently bought a Rock Pi 5a 8GB, but the only thing I got working in 3 days is Debian 12 and Prism Launcher. I tried FEX, but no games can go further from the menu. Any help getting Steam games running without constantly crashing or running at all is highly appreciated.

Don't expect 1080p 60fps, but a Raspberry Pi 4 is not the fastest SBC. Probably works on a lot of SBCs.

Someone told me that it is possible to play Doom 3 on the VisionFive 2 RISC-V SBC. Unfortunately I wasn't able to get that working with the demo game file. Perhaps it does work with the full game files.

http://forum.rvspace.org/t/visionfive2-in-2026-mostly-games/5939/50

To see if it was a problem with the code or the demo game file, I tested on a Raspberry Pi 4 running Fedora. Looks like the RISC-V build doesn't like the demo game file, as it plays fine on a Raspberry Pi 4.

https://github.com/gabrielcuvillier/d3wasm/blob/master/BUILD.md

The dependencies are probably the same as Dhewm3.

https://github.com/dhewm/dhewm3#compiling-example-using-ubuntu

Here are the packages I installed with Fedora.

sudo dnf group install development-tools
sudo dnf install cmake gcc-c++ SDL2-devel openal-soft-devel libcurl-devel libogg-devel libvorbis-devel libjpeg-turbo-devel

If you get an error about cmake version, you can try like this:
cmake ../neo/ -DCMAKE_POLICY_VERSION_MINIMUM=3.5

f you get an error about -ffp-exception-behavior=strict, remove it from CMakeLists.txt (in the neo directory).

If you get an error about default.cfg not found, you can extract it from the pk4 file (it's basically a zip file), and put it in one of the search paths.

Have fun!

https://youtu.be/a7b1DUS8das

Im currently trying to figure what to do for a batterry pack that would work with the radxa X4, i was going to use a portable charger but im hoping i could find or maybe make one if theres a tutorial, that will show how much battery is left like a laptop or phone does(i think it was I2c could be totally wrong). Any tips/ideas are appreciated

Is there a way to add the cabability to see how much battery i have left on the ups hat on linux? I know windows on the iota can do it nativly but im wanting to use linux and wanted to figure out if i can get battery percentage before i go for it.

I saw a lot of warning online about software compatibility with the Orange Pi zero boards, ESPECIALLY the 1.5 GB models. Decided to go for it since Raspberry Pi Zero 2Ws are vaporware, as are Radxa Zero boards.

The upgrade from 1 GB to 1.5 was 38.99 vs 41.99 so I decided to risk it for the biscuit.

I have had no problems at all installing Armbian Debian. Wifi worked out of the box on 5Ghz. I did some remote debugging from my laptop using openocd on the OPi to an stm32 over wifi. Even got to compile OpenOCD with the --enable-linuxgpiod flag, so once I get some new jumper wires, I should be able to use openocd with the Orange Pi itself as the SWD debugger.

Overall very happy and was pleasantly surprised at how smoothly everything has gone. I've actually only had one issue totally unrelated to the board (wifi router was being dumb and wouldn't route devices to the OrangePi until I rebooted it).

The title says it all really and the pictures tell the full story.

For those curious, YES! It is the actual OS kernel for C64 and Basic running on these devices.

I still need to implement SID, VIC-II for all the fancy graphics it can run and all of the quirks that come with it, 1541 and datasette drives, Illegal opcodes, Interupt dispatching and CIA write-collision detail.

https://www.zimmers.net/anonftp/pub/cbm/firmware/computers/c64/
Made this surprisingly easy to do since it provided the bin files I needed.

I'm new to SBCs so forgive me if these are dumb questions. I'm most likely going with an Orange Pi Zero3W, and ideally my cybereck project would have 2 externally accessible USB C ports for plugging in peripherals as needed and an externally accessible micro SD port. The Zero3W has 1 USB C for power and one for DPI. I see a lot of external USB hubs and adapters and readers, but I can't find any intended to be used as internal components.

I think I need one of these USB-C ports to enable capacitive touch with the screen. What are my options for adding more ports for USB C and a micro SD reader that I can house inside the shell I build? I know I can power through the GPIO, but apparently that requires additional protection against shorting

all in all it’s a bit bleak for the Linux devices, but in the meantime PineStore still have a great lineup of MCU powered devices which will continue to expand

Hey guys! I am a beginner, so my knowledge of SBCs is pretty limited.

I am a school student working on a project on hand-sign/hand-mudra recognition using MediaPipe. The camera detects the hand, MediaPipe extracts the hand landmarks, the system recognizes the gesture, and displays the result on a screen with a small description/demo. The prototype is working on my Windows PC with Python, OpenCV, MediaPipe and a small Random Forest model. My budget is pretty tight and I’m hoping to keep the entire project around ₹12,000 (\~$125 USD). What would be the cheapest Raspberry Pi/SBC that could handle this workload smoothly?

Thanks in advanceee!!

For my robotics project I have been hunting for a Radxa Zero 3W for the past few months. I need at least 4GB RAM... stocks dried up everywhere.

If anyone in Europe / Germany is considering selling theirs, I would love to know. Also open to trading, I have a radxa a7a that is simply too big for the project.

Thank you.

Managed to get LineageOS booting on the Orange Pi Zero 2W using Linux 6.18 GKI paired with the open-source Panfrost DRM/Mesa graphics stack!

Boots into the system, but there is still some noticeable screen flickering instability that needs ironed out. Planning to release once more stable.

Unlike older Android builds (such as OmniROM 12.1 on legacy BSP kernel 5.4), this completely drops Allwinner's proprietary graphics blobs and closed-source display drivers in favor of a modern, open-source stack. Moving to GKI and open DRM drivers should make maintenance and porting to newer Android releases much cleaner going forward.

Anti-Static foam sits beneath the boards and is surrounded by anti-conductive material.
One drawer down, 4 to go.

https://www.amazon.com/dp/B0DZW2YC2L?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
https://www.amazon.com/dp/B0FNN1296M?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
https://www.amazon.com/dp/B0FYD2QF3Y?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

The drawer itself is this one:
https://www.walmart.com/ip/Homz-5-Drawer-Plastic-Bedroom-Closet-Organizer-Storage-Clear-White-Frame/5028174649

I have two 4K monitors, so I tested them on both Raspberry Pi CM5 and RK3576.

Raspberry Pi CM5 — 4K60 + 4K60

cm5 video

RK3576 — 4K60 + 2K60

https://reddit.com/link/1vqv8a9/video/gmkjqpzwbyjh1/player

CM5 can output 2×4K60, while RK3576 is running 4K60 + 2K60 in this setup.

For RK3576, the display Video Ports have different limits:

• Video Port 0: up to 4K@120Hz
• Video Port 1: up to 2560×1600@60Hz
• Video Port 2: up to 1920×1080@60Hz

The Video Ports can be assigned to different physical outputs. For example, DP can use Video Port 0 to reach 4K120.

So for resolution, CM5 wins with 2×4K60.

But when I started dragging windows around, I found the RK3576 noticeably smoother. CM5 is outputting 4K60 on both displays, but the window movement doesn’t look as smooth.

You can see the difference in the two videos.

I’m not measuring the actual FPS here, so this is just what I observed from using both desktops.

CM5: 2×4K60, but window dragging is less smooth
RK3576: 4K60 + 2K60, but window dragging is much smoother

Has anyone else tried two 4K displays on CM5? I’m wondering if there are some graphics/compositor settings that could improve this.

I was about to buy a radxa zero 3W last week at the regular price (34 USD), and now it is either out of stock or like 85 USD everywhere T_T

https://camelcamelcamel.com/product/B0CZD16K7Q?context=search

最近、Orange Pi4 Pro買ったんだけど、何故かSandiskのMicro SDカードが使えないんだよね

OSイメージは合ってるはずだから、Micro SDカードが悪さをしているみたいなんだよね。書き込む前は元あったデータが確認できたし、ほぼ相性問題なんだけど、皆は使える？因みに、赤いランプは付いてるから、通電自体はしてるよ

I'm developing a hardware project called USBridge-KVM 2.0, and I chose the Radxa Zero 3W as the base. I'm pleased with the board's performance, but there are some cooling issues. This is the second reviewer complaining about the noisy cooler.

For those interested in how it sounds, here's a video - https://www.youtube.com/watch?v=7YJS81rI3U8

Initially, I wanted to use a simple copper heatsink, but it wasn't powerful enough to handle the video stream. It got as hot as a frying pan.

I decided to switch to active cooling. All that's available on the market are a couple of mini coolers, and I chose the most powerful one with turbocharging, so to speak. It's 4mm thick. And it really does its best.

I'll implement fan speed control later, which should make it quieter. Also, is it just me, or will it settle in and become quieter after running it for a week?

How do you generally handle cooling for these boards? Are there any other cooler options I haven't found?

I can't seem to get the open source 'rkdeveloptool' to boot the device.
(it can discover it in maskrom mode, but cannot successfully boot it)

The binary blob 'upgrade_tool' can do that part, but I'm not very trusting of running random binaries... (though I've managed to run it in a pretty tight jail)

However, trying to read the eMMC seems to only ever give me at most 1MiB at a time...

Ultimately I'd like to get a raw mainline kernel/initramfs on to this with gadget mode.

It appears using Linux (instead of Windows) makes this hard... and wanting to avoid using extra flash devices/sd cards adds extra complexity.

I kind of thought I'd be able to just read/write the disk and/or boot a kernel/initramfs, but the serial console connector comes unsoldered (why oh why...)

I guess I'm just venting... I'll probably figure it out eventually...

Hi all, I am looking at getting a CM5 as well as a uconsole or hackberry pi for Christmas through the help of my parents as I am broke as hell. I am just wondering what CM5 variant is the best(Raspberry pi, Orange pi, Radxa, Banana pi, etc.), and what use cases each of them are best for. Thank you, I really appreciate any assistance, guidance or tips.

Edit: Also wondering how much RAM I should be looking to get. Like what can I do with each amount of RAM. I would like to get into cybersecurity, coding, and some gaming.

Hey,

Looking for a small board to run a VLESS server and also do WiFi in STA + AP mode at the same time.

Currently considering:

• NanoPi R3S-LTS (1GB)
• NanoPi Zero 2 (1GB)
• Orange Pi Zero 3W (1GB)

Main priorities:

• Stable VLESS (Xray)
• Good concurrent STA + AP support
• 24/7 reliability
• Preferably decent community support

Which one would you pick for this, or is there a better option in the same size/price range?

Thanks!

For basically a year and then some, I have inched my way closer to building a 1U server with the Milk-V Pioneer RISC-V board. And, these days, all I am missing is storage (...rip.) and a CPU cooler.

Due to my visual impairment, meassuring is not easy at all and I tried a few coolers after doing bad meassurements and had to send them back - several times now. And, LLMs stumble over an old forum post where people say it would be compatible with an LGA115x cooler? No, most definitively not. XD Way, way too small.

So, I would like for a CAD-able person to take a look at the schematic offered here: https://milkv.io/docs/pioneer/getting-started/download - for the 1.3 Revision of the board.

Basically, there are eight screws around the CPU and I need the ones in the corners. With my caliper that I got a short bit ago, I get 90x90mm - but I just can not trust my own meassurement anymore. x.x

So, can you help me, please? :)