How far can I broadcast LoRa packets WITHOUT a radio? - LoLRa

Memes, in order of appearance: Tiny Paper Senior Chang, Trollface Rage Comic, Nerdy RF Mixer, 69-420, Sanic Gotta Go Fast, Midwit IQ Bell Curve, “Y U NO” Guy, Feels Good, This Is Fine, Great Gatsby Reaction

If anyone wants to join my discord, feel free to ping me directly, we are open, but not public.

[LanceCSTCuddy]

You’re crazy. I’m convinced that all RF engineers are wizards.

[papa_gowon]

Charles: so I made the GPIO pin go real fast. FCC: and I took that personally.

[weeeeeeeeeeeew]

"That final output is 69.420 MHz"
Nice.

[aurorajunior]

This Is The Most Insane "Doing Alot with a Little " Project ive eve seen

[macyler]

Incredible as always. And simultaneously terrifying.

Now we just wait for the headline “Gaming keyboards had firmware undetectably overwritten to broadcast key strokes hundreds of meters via LoRa, without physical access, from user-mode application”

[DanielSMatthews]

You are a rare human, gifted, tenacious in your pursuit of knowledge, and incredibly generous. Thanks for sharing, the light shines brightly through you.

[nobodynoone]

Bandpass filters make these kinda hacks easier, more effective, and more polite to those around you. Every radio hacker should have a pile of remade ones, a tunable one, and the know how to throw one together from scrap. It's a rare but useful superpower in the rf world.

[thefatmoop]

Aggressive bandpass filtering could probably make this fcc passable. Amazing work

[juliankandlhofer]

dude even attempting this is insane. that you managed to get it working is borderline lunacy.
what you're doing is absolutely masterful and i cannot express how impressed i am

[Cydget]

holy shit that's nuts. When you started talking about using reflections to get your desired carrier frequency my brain started expanding. I'm so shocked that you didnt run into any issues with this by nature of your antenna being a wire that was bent. I figured that any little change would greatly effect the outcome of the reflections, but I guess so long as the actual length of the wire is not changing, the reflections should still be there relatively unchanged. Also the idea to just add wireless connectivity to existing devices that we can hack was just brilliant. Lastly throughout the video I was thinking how it would be a cool project to draw vector graphics in the waterfall view like some people do with the xy plot on a scope and the last few seconds I see the outro graphic. Brilliant

[johnwest]

Now build 10 element beams for both ends. :)
I've blanketed 1/3 of the USA with a 7 mW BPSK LowFER signal from my 30 foot tall antenna with 2 miles of hand-wound 22 gauge wire and a loading coil with 35 pounds of 8 gauge wire wound on a 3 foot diameter Styrofoam core, and I've been called crazy. But you have gone far beyond me. Well done, sir! I salute you! BTW, the most fun I've ever had was doing range tests. I drove 900 miles on I-80 across the USA watching my beacon message play on and on on the computer on the seat beside me. I smiled every inch of the way. Same sort of thing happened with my range tests with Hi-Fi audio sent via a dollar store laser, further and further, 6+ miles of smiling in the cold and dark with rain sprinkling down on me. I think we both know exactly how Marconi felt as his radios worked further, and further, and further.

[utkua]

The projects excites me the most are things that are cheap and massively adapted, your stuff always hits the mark. This is a great work that enables people, you are a good human we are lucky we have people like you.

[edgeeffect]

This is cool... basically you're bit-banging into the air!!! NICE!

[davidpanic]

What an absolute madlad! And here I am just using cheap LoRa modules to send messages! I definitely got some inspiration from this.

[mikeselectricstuff]

So maybe for diversity you could put an antenna on multiple pins & transmit sequentially on each one?

[autonoob]

About 3min in and loving the way you bent the pin to see where the antenna plugs in, it probably secures it a bit better aswell. Genius! 👍

[quadmods]

I learned more about LoRa from your video than many other ones. Great useful research. Cheers

[m_riatik]

this is the purest definition of knowing how to break all the rules

[xmine]

In recent days the YouTube algorithm has giving me more and more smaller channels that are doing amazing things. You're part of that group, looking forward to more content from you my dude! Also, as a software engineer, RF is absolute black magic to me..

[benedekt.]

Creative uses of aliasing in sampled systems, under-noisefloor communication and hacking ucs beyond their stated limits are the favourite topics of my supervisor from the university days. I will send him this video. Great work on this, must have been a bumpy ride. Congrats!