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captain-amygdala / huidu-hd-d16

Reversing the Huidu HD-D16 LED controller
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SSH to D16? #1

Open brotherdetjr opened 2 years ago

brotherdetjr commented 2 years ago

Hi there! Looks like you are experimenting with D16 controller. Could you give me a hint by any chance? I've bought a 128x128 led panel with D16. It works well out of the box, but apparently it's not very "interactive" when you have to upload an image or a video via the vendor's app, which connects via wifi to a server running on the controller. I decided that when I have a Raspberry Pi GPIO I could try sending smth directly to HUB75E port of the display. Well, that didn't work for me for some reason. Either it was a stuck GPIO pin or my incorrect assumptions re HUB75E protocol. Not even a pixel. Another way is to try accessing Linux on D16 via SSH or something. It could be even better, because it's a dedicated piece of hardware. But I have no idea how to do that. Could you give me a hint what to do next, because I'm stuck and unfamiliar with D16 and embedded stuff in general? Thank you!

P.S. sorry, to raise an issue was the only way to contact you I could find.

Best regards, Denis

captain-amygdala commented 2 years ago

Hi! Sorry for the stock Firmware I don't have the SSH password.

jamwaffles commented 2 years ago

Hey Denis. I've been playing with a D15 (equal to D16 afaik but without wifi) and I managed to get into a shell and change the root password. I left some instructions here but please be warned - they're more of a brain dump than a howto. That said, they may be useful to you still.

brotherdetjr commented 2 years ago

Hi @jamwaffles, Wow, thanks a million! I'll have a look carefully, and it's likely I'll have a couple of silly questions, if you don't mind. Cheers!