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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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P10 Panel change in multiplexer works for only one panel #875

Open R2boot3r opened 5 years ago

R2boot3r commented 5 years ago

Hello Hzeller and anyone who contributes to this great library, thank you all !

A colleague of mine has recently been trying to make work a series of p10 panel from a Chinese supplier called LEDCARDSTORE. He has successfully been able to make work a single panel:

image

The modification he made was just to the multiplexer 3 the SpiralMultiplexMapper, he just added a modulation to obtain the correct pixel lighting up

image

Here are two panels chained together. image

(The panels are upside down on the picture this is normal)

Here are the settings I am using: image

I highly suspect this modification to cause a problem when using multiple panels, but I have yet to find the solution by myself, I'm having, for now, some difficulties understanding the various multiplexers.

I'm actively trying to understand the entire library but it requires quite a bit of time and I would be thankful if one of you could help me go faster.

(If possible and that those panels work in series I would highly like to add the panels reference to the wiki as I have ordered some a few months ago and some 10 days ago and the provider of the panel seems to have a good consistency and reasonably good quality nationstar chips-)

I would be grateful if you could help me with this issue, thank you all for your time!

R2boot3r commented 5 years ago

Hello everyone, in the past days i have been exploring various parts of the library, i have succesfully implemened various parts in my code. On the other hand i'm still facing some issues concerning the understanding of the multiplexers, i'm unable to understand how people have obtained the various multiplexers. Could someone explain me the first steps of making a multiplexers ? In addition i've been trying to map the corresponding pixels one by one as i have seen in various issues, but some pixels don't light up when the should, is this normal ?