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krauseler

26 karma · joined March 16, 2026

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krauseler··on Muxcard, a DIY credit card size computer
Love how the point of this entire thing comes across!
krauseler··on Muxcard, a DIY credit card size computer
The PCB can be way smaller, but finding a flexible screen is the issue, there is a 2.9 inch one almost twice as big but the battery would suffer :/
krauseler··on Muxcard, a DIY credit card size computer
Fair enough, but I acknowledged that and it's 0.24mm thicker if we want to be exact. Here's a quote from my Git Repo:

"Official ISO7816 smartcards are specified at 0.76mm thickness, but many real-world cards slightly exceed this in practice. The target for this project was simple: Stay around ~1mm total thickness and preserve the illusion of a normal card."

krauseler··on Muxcard, a dyi credit card size computer
Good point. Ideally it would be the opposite of waste if it can save you from several cards. But banks would never certify such a multi-card system unless a big company pushes it forward.

Otherwise I'm sure people might use this to hack some terminals :P

krauseler··on Muxcard, a DIY credit card size computer
Developer here :)

Just saw this and love how I got the 100th or so "Does it run DOOM?". Even now officially an issue on GitHub. Does that mean I now have to deliver?

krauseler··on Muxcard, a dyi credit card size computer
Right, it doesn't compute. Apologies for the lie.
krauseler··on Muxcard, a DIY credit card size computer
I've got the question like 100 times easily, and I love it.

And yes, if you accept ~0.7FPS

krauseler··on Muxcard, a DIY credit card size computer
Hey, developer here :)

I used an ultra thin LiPo, so you can actually charge it. USB is obviously not an option but it uses magnetic pogo pins on the back side ^^