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hzeller / rpi-rgb-led-matrix

Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO
GNU General Public License v2.0
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Loking for some Info. #535

Closed AG1023 closed 6 years ago

AG1023 commented 6 years ago

Hi Zeller / Hi Everybody!

I bought an RPI, a hat and an RGB led Matrix 32X32 (HUB75) from Adafruit, following the instructions for installation and configuration that appears on the website, I managed to run the library examples -D0 ...

Now I am interested in using the rpi-rgb-led-matrix / adapter / active-3 / (3 strings) because I would like to build 3 screens separately and get different images in each of them. I have tried to follow its instructions on github but I can not get an image so far ... it seems to me that it is something about configuration.

I would like to ask you some questions: 1- Is the matrix 32X32 of adafruit compatible with the rpi-rgb-led-matrix / adapter / active-3 / ???

2- Using the rpi-rgb-led-matrix / adapter / active-3 / I can master 3 screens (some 32x32 each) with different images on each screen ??? 32x32

3- Is there any information published for beginners where it explains the step by step for the configuration of the rpi-rgb-led-matrix / adapter / active-3 / (codes to write in the RPI included) ???

I include a photo of my hardware to facilitate the understanding of those explained above.

I thank you in advance !!!

AG

hzeller commented 6 years ago

1) I don't know that board as it seems to have come from some third party but if you are using the standard wiring like the official boards that come with the project it should just work. Note that the Adafruit description probably told you to use something like --led-gpio-mapping=adafruit-hat. Here, you don't need this option (or use it with --led-gpio-mapping=regular), as this is the official mapping

2) You can have different images on each screen, after all, it is just a canvas, but you need to do that from one program. So write a program that puts different images on different sections of the screen.

3) Did you read the documentation and all the examples ? What is missing ?

AG1023 commented 6 years ago

Thanks Zeller! I was actually using another board, anyway I bought the official board to be able to follow the material published by you.

I look forward to the arrival of the new board.

Keep in touch!

AG1023 commented 6 years ago

Hi guys

Following the steps in running some demos, I have difficulties in continuing from here.

image

AG1023 commented 6 years ago

Got it!!!

image

Thanks anyway!

AG1023 commented 6 years ago

Hi guys!

Any advice to solve this problem shown in the video. The -D1 example starts ok but after a few seconds the image is affected. Maybe I need to place some extra flag or make some configuration ...???

Code used: $ sudo ./demo -t 20 --led-chain=2 -D 1 runtext.ppm

Video of the issue: https://www.youtube.com/watch?v=oa8pod8rOnU

Thanks in advance!

hzeller commented 6 years ago

Did you switch off the one-wire interface ? Please read the troubleshooting section.

AG1023 commented 6 years ago

You got it, Thanks Zeller!

Problem solved with this:

I have also seen reports that on some Pis, the one-wire protocol is enabled (w1-gpio). This will also not work (disable by removing dtoverlay=w1-gpio in /boot/config.txt; or using raspi-config, Interface Options -> 1-Wire)