arduino uno R3 doesn't work

[imane-jym]

I download code and run example. error blew:

I review code, I found src\boards\board_methods.h.
boards\uno code file is empty~~~

The documentation mentions redefining pins, There seems to be other code that needs to be added as well.
Thanks in advance.

[CamelCaseName]

oh nice that you have a R3,
I can try and add the definitions the next days and you can test them

[imane-jym]

yes， I have it. Looking forward to your addition. Thanks very much.

[adrianLach]

Hey, I copied nano.h, nano_methods.h and the nano_pin_helpers.h into src/boards/uno and updated the #defines for the uno board and renamed them respectively. Got it runnig, however I now got weird artifacts when running the flashing example.

I haven't used the LED panel before so I am not quite sure, if it is a problem with my panel.
Propably just the NANO code not working for the UNO.

Do you have an idea what the issue could be?

[CamelCaseName]

on the image it seems your psu is running into its current limit?
these panels easly take 5.1v at 2A, so about 8 to 10W

if you only power the panel via the uno (and no psu) it looks very similar as only the red leds can turn on

[CamelCaseName]

also i quickly checked and copying the pins and methods from the nano should work :D

[CamelCaseName]

@adrianLach did you figure it out?

[adrianLach]

I haven't looked into it again. I can give it a try and let you know.

[adrianLach]

https://github.com/user-attachments/assets/3320b3ee-c1d8-45eb-8521-f25ea68e8413

Yeah seems good now. It really must have been the current limit. Completely overlooked that.

The scrolling-example how ever looks kinda off. The letters of the words get mixed up. "Hello, Horld"

But I can confirm now, that copying the header files for the nano works with the uno.

[CamelCaseName]

good to know, I'll change up the library to use the nano code for the uno r3 when compiling.

regarding the scrolling, W and H just look pretty similar, with W the middle pixel is a bit lower

it's a 5x3 pixel font, therefor it's a bit ugly.

thanks for testing and I'll close this issue after I publish the new version with r3 support

[Luking977]

Hi, I also have an Arduino R3, I've just got it working, sort of.
My problem is that iam only able to get any kind of text images or what ever on the top half of the panel, i checked the cabling and the code but didnt find anything :/ Can anyone help?

[CamelCaseName]

the way the half is split here shows the address pins work correctly. but r2 g2 and B2 don't.

you're only running the example code?

[Luking977]

Yes I am only running the scrolling example but I found out that if I switch r1 with r2 and so on I have the same problem but then the text or information that should be on the bottom half get displayed on the top side, so regardless the bottom side does not get any input, so maybe my pins on the arduino are broken? (its a fresh ordered one)

EDIT:
FYI; I also added a folder inside /src/boards called uno and copied the nano files in there and also copied them and renamed them to uno, otherwise it didnt work because I got an error.