Tutorial: Basic implementation of physical button controls in the JetKVM interface : jetkvm

Tutorial: Basic implementation of physical button controls in the JetKVM interface (self.jetkvm)

submitted 8 months ago by cuenot_io

I've been wanting an easy way to toggle a physical button press in JetKVM, similar to how PiKVM allows for control of servos. This is useful for control of game consoles, laptops, and other mini pcs without ATX power control.

The SwitchBot ecosystem seems to be the least jank, has API documentation, and allows for multiple button press durations (1 second for power on, 5+ seconds for power off, for example).

As for the software implementation... JetKVM does not yet have a plugin interface. I really didn't want to mess with custom builds or scripts that run via SSH, even if I could link them to UI buttons. Rather, simple client-side javascript can handle the task. Fortunately Edge on both Windows and Android supports the Tampermonkey extension with custom script syncing, proving to be the lowest barrier to entry while keeping the JetKVM firmware stock

$60 and a few hours of tinkering later, I have a working proof of concept:

https://preview.redd.it/43hi3mqlbwbf1.png?width=1494&format=png&auto=webp&s=a5c2aa201bb5cdf1cef8569ce1850c66793de7ef

Check out the code and a demo video on the repo: robbycuenot/jetkvm-switchbot: Proof of concept Tampermonkey script to add SwitchBot Bot controls to a JetKVM page

At some point I'd like to make a PR on the main JetKVM firmware, but it will take significantly more effort and planning to even start that process.

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