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adafruit / RGB-matrix-Panel

Arduino library and example code for the 16x32 RGB matrix panels in the shop
http://www.adafruit.com/products/420
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text split and shifted #46

Closed sebasobotka closed 5 years ago

sebasobotka commented 5 years ago

Hi,I am using Hub75 panel and I've got an issue with drawing text. It seems that something is mixed up.

matrix.setCursor(1, 0); // start at top left, with one pixel of spacing matrix.setTextColor(matrix.Color333(0,0,255)); matrix.print('2'); And the resultis on the picture. Could you point me to the right direction? p10_issue

ladyada commented 5 years ago

hi did you buy the panel from adafruit? if not, please contact the seller for support - thank you :)

sebasobotka commented 5 years ago

hi i didn't buy the panel from adafruit but i fixed it. we can close the issue.

DoomHammer commented 1 year ago

hi i didn't buy the panel from adafruit but i fixed it. we can close the issue.

Hi there!

Can you share how did you fix it? :)

sebasobotka commented 1 year ago

@DoomHammer I don't remember ;) It was 4 years ago. Maybe I've got somewhere the code. I will try to find it later.

DoomHammer commented 1 year ago

If you could, it'd be more awesome than paprykarz szczeciński!

sebasobotka commented 1 year ago

@DoomHammer sorry but I didn't find anything. What kind of issue do you have with that?

DoomHammer commented 1 year ago

Basically, I have those 32x16 panels with 3 address lines. When I interface them and try to light a single LED, I see 4 of them turned on. I can only guess this may be related to scanning or something, but I have no idea how to configure it with RGBmatrixPanel.

sebasobotka commented 1 year ago

@DoomHammer I found something ;)

First of all you need to check the pin description on the panel. I've got two of them with only A and B pins (not C and D) and two with C pin (and these are working). Second thing is type of scaning mode. There are different type of panels. I've got 1/4 scan type. Third thing is type of Arduino. I was using Arduino Uno.

There are 3 steps:

  1. pin connections like here https://learn.adafruit.com/32x16-32x32-rgb-led-matrix/connecting-using-a-proto-shield R0 - 2 (or R1) G0 - 3 B0 - 4 R1 - 5 (or R2) G1 - 6 B1 - 7 A - A0 B - A1 C - A2 CLK - 8 LAT - 10 OE - 9 GND - GND

  2. software from here https://github.com/adafruit/RGB-matrix-Panel After these 2 steps you should be able to run some examples from adafruit RGB matrix panel library. I had some issues with fonts and I wasn't able to print text on the panel.

  3. Here is a solution for my problem: https://forum.arduino.cc/index.php?topic=503416.0 You need to download two files RGBmatrixPanel.cpp and RGBmatrixPanel.h and change &gamma to &gamma_table inside the RGBmatrixPanel.cpp

Here is an example of working: https://www.instagram.com/p/BrAQxpkim95/