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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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16x16 Matrix with MBI5024 Chipset #927

Open its-Blackpoint opened 4 years ago

its-Blackpoint commented 4 years ago

Hello hzeller

First of all Thank you for your amazing Project and Documantation. I already have a 32x64 Panel working since about a year on my Workbench. :)

Now i have a second project. I had the Opportunity to buy 30pcs 16x16 Led Panels from a Rental Company. Now the Project is to make a Stripe trough the corridor in my Flat.

The new Panels are working on a MBI5024 Chipset and only have Address Line A. I can get some Output with your Software. but i can't get the Mapping in the right order. can you help me out?

Regards ScacchiSL

its-Blackpoint commented 4 years ago

Found out that MBI5024 is basically the Same than ICN2024

its-Blackpoint commented 4 years ago

image0 this is the Pinout from the Panel

its-Blackpoint commented 4 years ago

@hzeller any ideas?

hzeller commented 4 years ago

I don't have the panel, so it is a bit hard for me to figure out the exact internal way it does things. I suspect it might clock in the data with some way of using LAT and Row-A, essentially some new row-address-type that you have to implement. Or they just have a single bit for row and have a long led-multiplexing.

You need to find the datasheet of the controlling chip, then see how it is used in your panel and possibly adapt some code. There is not much I can help without playing with the panels directly.

its-Blackpoint commented 4 years ago

hello @hzeller

Thx for your reply. i've added the datesheet of the Chip here. If you would like to Play with the panel i can send you one. I'm Based in Switzerland so that wouldn't be a problem to ship. 00006155.pdf

its-Blackpoint commented 4 years ago

hello @hzeller

I have imported the Demo Method 12 (Fill All Pixels from @cmagnuson (thx for this amazing tool)

now it was possible to take a video how the LED Panel works. the following video was taken with this command: ./demo -D12 --led-slowdown-gpio=2 --led-multiplexing=1 --led-rows=16 --led-cols=16

LED1 of the Panel is Upside Left. So the panel works in the wrong order and starts on 16 thirst it starts the LEDs 1 thru 32 the next 32 Steps are the Same LEDs but brighter.

maybe this could help you to point me in the right direction to fix mi Issue.

https://www.youtube.com/watch?v=DOjt-jQOOzI

its-Blackpoint commented 4 years ago

No hint for me on this issue :( ??

hzeller commented 4 years ago

It looks like this might have some dual-data-rate situation in which the up and low edge of the clock do something. As I said, I don't have such a panel and won't have time to acquire and test it so you need to test that yourself and find the right bit-pattern and send a pull request.