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DIY IP-KVM Based on Raspberry Pi

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Re: DIY IP-KVM Based on Raspberry Pi

#21
post #3

I'm currently working on a variation of this, specifically for accessing/controlling smartphones. My hunch is that even though a hardware-based KVM approach was meant for remote manual control, it could also be extremely useful for automation (and specifically test automation). But the big question is if anyone would agree with me about that. Hope to find out soon enough...

[deleted]

Re: DIY IP-KVM Based on Raspberry Pi

#22
post #9

I like this project but the hardware seems quite overpriced at $300+. Similar for tinypilotkvm.com. In the past I've considered making and selling a cheaper version. Aside from lack of time (or motivation), one thing which discouraged me is that I would feel bad "undercutting" someone selling open hardware.

You’d be surprised at how expensive it can be to manufacture, program, test, package, warehouse, sell, ship, and support small hardware projects like this.

It may seem overpriced when compared to collecting all of the pieces and putting them together for yourself, but the person trying to do this as a business has to make a big investment in up front purchasing as well as labor to get them all together and shipped out. It quickly reaches a point where doing it for an “undercutting” level price doesn’t justify the risk and effort.

Re: DIY IP-KVM Based on Raspberry Pi

#23
post #9

I like this project but the hardware seems quite overpriced at $300+. Similar for tinypilotkvm.com. In the past I've considered making and selling a cheaper version. Aside from lack of time (or motivation), one thing which discouraged me is that I would feel bad "undercutting" someone selling open hardware.

TinyPilot founder here.

I understand the feedback about the price. When I created the original TinyPilot,[0] I wanted a low-priced alternative to the $600 KVM over IP options I was seeing, and now I sell my devices for $400-500/unit.

The thing that's tough about selling hardware is that it seems easy to produce a few units cheaply, but creating a sustainable business for it, the costs add up. You have to fulfill orders, provide support when there are delivery issues, provide support when the customer has trouble understanding how to connect to a device on their local network. And there's certification, stockpiling components so you don't run out of stock, managing inventory from many different vendors.

TinyPilot became profitable in 2023, but for the first 2.5 years, we were operating at a loss. [1]

Also, small correction: no KVM over IP vendor is really selling open hardware. The part that's open is the software. I haven't seen any vendors publish their hardware schematics. It's expensive to create PCBs, and it's not like open-source software where you can hope to get useful external contributions.

[0] https://tinypilotkvm.com/blog/build-a-kvm-over-ip-under-100

[1] https://mtlynch.io/retrospectives/2023/10/#tinypilothttpstin...

Re: DIY IP-KVM Based on Raspberry Pi

#24

Used Raritans are pretty cheap on ebay. The dongles are even cheaper.

Can you explain what all would be needed to make a similar setup? I see the dongles for ~30 but does it need to be in a location with another piece of hardware or what?

You buy a KVM device like the raritan kxiii. That’s a rack-mount unit that’ll support a bunch of connected devices.

For each connected device you need a dongle, which is what will plug into the display and usb ports of the server.

Re: DIY IP-KVM Based on Raspberry Pi

#26
post #9

I like this project but the hardware seems quite overpriced at $300+. Similar for tinypilotkvm.com. In the past I've considered making and selling a cheaper version. Aside from lack of time (or motivation), one thing which discouraged me is that I would feel bad "undercutting" someone selling open hardware.

basic functionality with generic hardware looks doable and one-clickable for a pi4:

usb splitter $9 - https://www.amazon.com/dp/B08C5FWQND

usb power blocker $7 - https://www.amazon.com/dp/B094FYL9QT

hdmi-csi2 adapter $32 - https://www.amazon.com/dp/B09GY9M9BX

atx power control looks less off-the-shelf

Re: DIY IP-KVM Based on Raspberry Pi

#27
post #9

I like this project but the hardware seems quite overpriced at $300+. Similar for tinypilotkvm.com. In the past I've considered making and selling a cheaper version. Aside from lack of time (or motivation), one thing which discouraged me is that I would feel bad "undercutting" someone selling open hardware.

Note there are also alternative Pi-KVM hardware boards (in a variety of formats) from BliKVM.

They don't seem to directly support the upstream project, and I believe they may have even forked some of the software from PiKVM and TinyPilot both and may or may not have provided proper attribution/recognition... so take that as you may.

Re: DIY IP-KVM Based on Raspberry Pi

#28
If price is a barrier, a less open, fiddlier, but much cheaper ($79) solution I've used recently is the Aurga viewer[0]. You have to use their awful apps to access the device, but if you can get past that, it does work - I was able to access and control the BIOS of a NUC I had in a closet. It can join a wifi network or host its own, which is useful in the field.

[0] https://www.aurga.com/

Re: DIY IP-KVM Based on Raspberry Pi

#29
post #23
post #9

I like this project but the hardware seems quite overpriced at $300+. Similar for tinypilotkvm.com. In the past I've considered making and selling a cheaper version. Aside from lack of time (or motivation), one thing which discouraged me is that I would feel bad "undercutting" someone selling open hardware.

TinyPilot founder here. I understand the feedback about the price. When I created the original TinyPilot,[0] I wanted a low-priced alternative to the $600 KVM over IP options I was seeing, and now I sell my devices for $400-500/unit. The thing that's tough about selling hardware is that it seems easy to produce a few units cheaply, but creating a sustainable business for it, the costs add up. You have to fulfill orde…

Fan of your work, your blog and your openness. Thank you.

Re: DIY IP-KVM Based on Raspberry Pi

#30
post #23

Earlier quoted context omitted.

TinyPilot founder here. I understand the feedback about the price. When I created the original TinyPilot,[0] I wanted a low-priced alternative to the $600 KVM over IP options I was seeing, and now I sell my devices for $400-500/unit. The thing that's tough about selling hardware is that it seems easy to produce a few units cheaply, but creating a sustainable business for it, the costs add up. You have to fulfill orde…

Fan of your work, your blog and your openness. Thank you.

Thanks! I appreciate you saying that.
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