this post was submitted on 09 Oct 2024
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Casual Hacking

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While playing with my Flipper Zero, I realised that the IR radiation that it reads does not have to be emitted by another electronic device! It can be a random analog IR 'signal' from a flame! Since Flipper can record raw IR data without interpreting it, there you go, a True Random Number Generator (TRNG)! I wrote a script that automates data collection and processing, here's a github link. It outputs your freshly generated true random number sequence into a file.

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[โ€“] chirospasm@lemmy.ml 3 points 1 month ago* (last edited 1 month ago) (1 children)

That's super neat! It sounds akin to Cloudflare's camera-tracked lava lamp shelves. I'll have to try it out!

[โ€“] dipdowel@feddit.nl 1 points 1 month ago

Thank you for your attention ๐Ÿคฉ๐Ÿ™. Yeah, it's a toy version of the same principle.