This is a placeholder topic for “PiKVM V4 Mini” comments.
The next generation of Raspberry Pi based KVM over IP. Manage your servers or PC remotely! PiKVM is a feature-rich, production grade, open-source, Raspberry Pi based KVM over IP device.
Read moredoes it come with a compute module 4
Hi Joel, Welcome to the Forums!!!
The PiKVM V4 Mini comes as a plug and play kit so it does come with a 2GB Compute Module 4 pre installed.
This product ended up not being the right thing for me.
At time of purchase I had understood the HDMI input was a passive replica of my monitor, but it’s actually another active monitor making it incompatible with Wayland.
HOWEVER, one thing I do like about this is the ATX board, which worked a treat.
I can’t leave the piKvm plugged in, but the ATX board can stay.
An Esp32 will be plenty to interface with this guy.
As I suspected the ATX just uses Ethernet because it’s an efficient way to lots of wires. I’m betting there is no protocol here, and the CM4 is just pulling the relevant lines.
What I don’t have is a timing diagram.
For example, do I pull BTN PWR+ low or high? What Logic Level does it use? Pis typically use 3v3 but some computers use 5v. How long do i hold the level for?
CE has the suppliers for piKVM ever sent you a proper datasheet?
I’ve only got what’s on the github repo.
Hey @Pixmusix ,
Unfortunately, we don’t have any more information from the supplier than what is listed on the product page, which is really just that GitHub.
Sorry to hear this wasn’t the right fit for you, although it’s good you can still get some use out of the ATX board.
Ok. Well I didn’t buy that expensive Osciloscope for decoration,
Can you recommend an MCU & Ethernet hat combination?
Isn’t this what ESP32 iot is so good for?
Hi Pix
Over time you will find that is the best investment you have ever made.
Do yourself a big favour and spend some time to learn how to use it properly. Experiment, you can’t really do any harm unless you stuff lots of volte down its throat.
I actually have 2. A tablet type rechargeable battery operated one and a mains powered one.
I have a short (30cm) bit of mains cable with the earth disconnected to remove this earth from this instrument if required. You will find with experience that this earth can introduce what looks like problems that ae not really there in the real world. Usually only experience will lead you to suspect this sort of thing.
Cheers Bob
I have that logic level analyzer it came with which I’ve never used before. This seems like a good excuse to learn how to use it. Always another skill I need, never ends.
Hi Pix
To be honest I have never had the need to use one of these.
That is so true
Cheers Bob
Hi Pix
Just for interest read this post from start to finish.
Where James is just about to write off a MeanWell power supply. Changing some measurement techniques changed his mind and now he loves it.
Take note towards the end where I post some interesting screen shots highlighting the difference between having the mains earth connected and isolated.
You will see the point I made above. The difference is the supply seemingly being out of spec to being well inside published figures.
Cheers Bob
This topic has wandered off a bit. If you are still interested open another one.
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