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Welcome to the Power Users community on Codidact!

Power Users is a Q&A site for questions about the usage of computer software and hardware. We are still a small site and would like to grow, so please consider joining our community. We are looking forward to your questions and answers; they are the building blocks of a repository of knowledge we are building together.

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Q&A Hardware for occasional direct control of personal server

PiKVM is an open source project which offers an internet KVM (keyboard-video-mouse) via a Raspberry Pi. It comprises an HDMI capture capability (also usable with VGA via adapters) which can be vie...

posted 10mo ago by Pogo‭

Answer
#1: Initial revision by user avatar Pogo‭ · 2023-07-22T12:10:34Z (10 months ago)
[PiKVM](https://pikvm.org/) is an open source project which offers an internet KVM (keyboard-video-mouse) via a Raspberry Pi.  It comprises an HDMI capture capability (also usable with VGA via adapters) which can be viewed on a web page.  Keypresses and mouse movements are then delivered to the target machine via a simulated USB keyboard and mouse.  Additionally it can present as a simulated USB DVD drive or USB stick to provide boot media to install or recover an OS.  It can also control the target PC power via a connection to the buttons header on the motherboard (simulating pressing the PC's power or reset buttons).

The project has official PiKVM modules which comprise all of the hardware necessary to make this connection, which cost about $150 plus accessories (cases etc).  Alternatively it's possible to build your own for a lower cost, using an HDMI to CSI module ($30) and some cables.  Or there are some Chinese clones of the official modules (cheaper, but not contributing back to the project).

Once you have the hardware, you just need to flash the PiKVM SD card image and the Pi will boot up straight into the web KVM, at which point you can visit its IP address in a browser and be able to control your target machine.  This requires no cooperation from the target machine, so full access to BIOS and any other non-networked settings are available.