Does anyone have any experience using a Teensy + Octo adapter + ws2811 pixels

Andrew_Gardner · August 4, 2017, 1:40am

Does anyone have any experience using a Teensy + Octo adapter + ws2811 pixels and artnet?

I have just finished a decent sized matrix which is 5.2 x 1.4 meters and 20 x 80 pixels.

I would like to transmit data via jinx artnet or any other protocol that someone has plug and play code for that’ll work. We have spent hours playing with different code with some very generous peoples help but I am not a coder so If someone can point me in the right direction that would be great.

I have a w5200 ethernet module connected via sdi too.

Any suggestions?

Andrew_Gardner · August 4, 2017, 1:41am

I will upload photos soon so hopefully someone gets excited just based on the size and wants to help out

At the moment all I have is a static image running with fixed rgb data stored on the teensy and sent to each LED.

marmil · August 4, 2017, 5:26am

I haven’t used the Octo adapter, but here’s an example of using Glediator (like Jinx) to drive the pixels.

github.com

marmilicious/FastLED_examples/blob/master/Glediator_test1.ino

//***************************************************************
// Testing out reading RGB data sent from Glediator
// http://www.solderlab.de/index.php/software/glediator
//
// For Glediator’s serial protocol each frame starts with 0x01,
// which is then followed by all the pixel data.  The number of
// LEDs (matrix size) needs to be set in Glediator, and also
// the output needs to be set to:
//    Output Mode:  Glediator_Protocol
//    Mapping Mode: Single_Pixels
//    Pixel Order:  HL_BL (for a single strip, or one of the the others per your setup)
//    Color Order:  RGB
//
//    Baud-Rate:    1,000,000 was suggested, but you can use 
//                  whatever as long as they are both set the
//                  same here and in Glediator.
//
//    *** Upload and have this code running first, then start up
//    Glediator otherwise it won't give you a COM port number.
//

This file has been truncated. show original

You will of course need to set your matrix size and layout (serpentine or zig-zag) in Glediator.

Andrew_Gardner · August 5, 2017, 7:26am

Thanks Marc but unfortunately serial simply can’t send that much data. Limited to roughly 1000 pixels. We are working on an artnet option as it’s just under 10 universe but there’s an issue with the buffer size which a mate of mine is currently working on.

marmil · August 5, 2017, 3:43pm

I see. Ok, I look forward to some pics.

Will_Tatam · August 5, 2017, 10:31pm

I have run 5.5 universe worth of LEDs with octo based on pattern suffice choice continued and adjusted by DMX on teensy 3.2. Without the octo, just using regular parallel output, I couldn’t get any of the dmx to play nice with the fussy ws2811s, but once using octo in the proper mode I got a working setup.

I did cheat slightly though, using the interrupt for dmx upset the LEDs, so given that my dmx value changes are not going to take effect until the next frame of the animation anyway, I might as well just read the dmx before each frame. Only downside is that if you say had a frame of animation with the very long delay, you need to wait fit that to end before the code would see the dmx change to a different pattern say, but you might have that issue anyway, interrupt or otherwise