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  1. Depends on the frame rate, but in all my tests, a...

    Depends on the frame rate, but in all my tests, a single usb circuit / card in a computer seems to be able to handle between 3-4 teensys (3200 pixels each) at 60 fps. the data rates don't add up, on...
  2. Hey everyone - sorry for dropping the ball on the...

    Hey everyone - sorry for dropping the ball on the thread, to answer a few of your questions definitively:

    1) yep the 3.2 would be supported exactly how it was supported on GeoPix 0.9. Though I...
  3. Epyon, Thanks for the additional information. ...

    Epyon,
    Thanks for the additional information.

    I'll research more via that link and other places.
    Sounds like 24 mhz low end aka 3 megabytes/s? That's quite a few leds and more than I think would...
  4. Hi Epyon, Thanks for the reply! This helps a...

    Hi Epyon,
    Thanks for the reply!
    This helps a lot.

    I've found this data sheet/page on the w5500:
    http://www.wiznet.io/product-item/w5500/

    I'm reading this:
  5. A few questions about teensy 3.6 , leds , and ethernet

    Hi everyone!

    I've been off this forum for a couple years and right now I'm just getting my self up to speed about the 3.6 and it's led driving capabilities - I've used the 3.2 heavily until the...
  6. GeoPix LED Pixel Mapper software - officially supports the teensy 3.1 !

    Hey everyone, I've been a huge fan of the teensy for years as a pixel controller and I wanted to tell you all about some pixel mapping software I've just publicly released that officially supports...
  7. So a bit of a follow up on my last post - I still...

    So a bit of a follow up on my last post - I still had that data structure wrong.

    The library is setup to simplify addressing the led's by making them led 0-n however the int array "drawingMemory"...
  8. Paul, So I've been doing some more reading on...

    Paul,
    So I've been doing some more reading on binary / bytes / ints etc and have a bit clearer of an idea on how that works if only slightly.
    Some of this might be common sense but I want to make...
  9. defragster, no I have the videoDisplay\processing...

    defragster, no I have the videoDisplay\processing file and I've been picking it apart - I was referring to what Paul said in the above quote.

    Basically I'm trying to make a simplified version of...
  10. Any chance I could get a link to that conversion...

    Any chance I could get a link to that conversion patch? Would love to take a look at it and see how it works / try to integrate it.
  11. Thanks Paul! Actually I only used about a foot...

    Thanks Paul!

    Actually I only used about a foot of cat6 and cut / crimped it to the thicker matte black cables coiled on the table next to it, merging data and power into one cable. There were 8 of...
  12. Pixelmapped Euphoria Festival main Archway!

    Hey everyone, first project that reached a music festival, featuring a geometric steel structure with led tubes attached to it.
    ...
  13. Got ya, That's super helpful thank you Paul. ...

    Got ya, That's super helpful thank you Paul.

    Is it possible to format that 24 byte segment with out diving into the lower level stuff you're talking about? Or is it not as simple as "put the rgb...
  14. Paul, In my simplified processing sketch, I'm...

    Paul,

    In my simplified processing sketch, I'm building an array that contains 3 bytes for every pixel.
    r1,g1,b1,r2,g2,b2,r3,g3,b3 etc..

    Is this not how the "drawingMemory" array is...
  15. Bumping this thread! Any one have any input on...

    Bumping this thread!
    Any one have any input on how to get this working properly?

    Post # 10 shows the most simplified version of my problem, where Processing is sending serial over to Teensy 3.1...
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    @ quadbyte Do let us know how that turns out!...

    @ quadbyte

    Do let us know how that turns out! I have seemed to hit the same bottleneck at roughly the same number of universes. Would be great to know that has more room to grow in terms of led...
  17. Yes I'm aware of the speed differences and...

    Yes I'm aware of the speed differences and honestly software SPI doesn't sound so bad at 3472 leds :) I hadn't really considered using non hardware SPI so that might end up being the route I go.
    ...
  18. Hey thanks manitou - When I use the octo...

    Hey thanks manitou -

    When I use the octo library and use a for loop and setPixel() to transfer values 1 at a time from source array > to "drawingMemory" array - no problem. It's when I try to read...
  19. Teensy 3.1 + sdCard adapter + wiz820io + 1 SPI output for leds?

    Looking at the teensy + wiz820io for receiving pixel data and wondering if it could be used in conjunction with 1 SPI output for APA102 pixels.

    I was looking at this:

    3979
    A little confused on...
  20. I wanted to bump this thread as I've still been...

    I wanted to bump this thread as I've still been 100% stumped on this one:
    In order to simplify my question :

    Here's my stripped down teensy receiving code:


    #include <OctoWS2811.h>
    const int...
  21. Interesting use! Well that definitely clears...

    Interesting use!
    Well that definitely clears things up a bit more, but I'm still having trouble getting 0-255 byte values of the appropriate length to show correctly on the leds/teensy.

    I'm...
  22. Actually what I said isn't entirely true: in...

    Actually what I said isn't entirely true:

    in the arduino code, drawingMemory is not a byte array at declaration, but an int array.

    int drawingMemory[ledsPerStrip*6];

    and later it's populated...
  23. No luck, I tried adding this line just to see...

    No luck,

    I tried adding this line just to see what it prints out:

    println(b << 1);
    It seemed to double the values, so larger negative and positive numbers.

    I'm still trying to understand...
  24. Ok thanks !

    Ok thanks !
  25. Hmm, can you explain what you mean by shift a one...

    Hmm, can you explain what you mean by shift a one out the left?
  26. Trouble wrapping my head around some parts of movie2serial PDE

    Hey everyone. So I've been breaking my brain over a very small bit of code in the movie2serial PDE that comes with the octo library.

    Let me start off with my original issue:

    I have been using a...
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    Has anyone here hit a speed bottleneck yet using...

    Has anyone here hit a speed bottleneck yet using the setup in this thread?
    Wondering how many bytes can be transfered / read via ethernet while maintaining roughly 60 fps?
  28. Awesome thanks! I'll give this a shot

    Awesome thanks! I'll give this a shot
  29. User friendly way to modify code with out arduino IDE - Is this possible?

    Hey everyone,

    I'm working on a project where it would be highly convenient if the end user could plug the teensy / finished device into a usb port and through a premade program (preferably python)...
  30. Hey! Seems like an interesting project. I can't...

    Hey!
    Seems like an interesting project. I can't speak for all of the points you're asking about but in terms of mapping I can tell you how I would at least handle this:


    So, when working with...
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    Paul, I actually had the exact same experience...

    Paul,

    I actually had the exact same experience with a previous project using the exact same hardware setup, except transmitting from a mac, and using Processing as the intermediary. Touch Designer...
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    Yeah it seems like I'm going to have to attack...

    Yeah it seems like I'm going to have to attack this from the angle of splitting up the workload before sending it.. multi threading or, like you said sharing the load between more teensy's.
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    I've read through every page in this thread, and...

    I've read through every page in this thread, and I've got to say thanks for all the development on this code / library!

    I've got got a pretty huge led display project going with my teensy 3.1...
  34. Colossal idiot move! I forgot to incorporate a...

    Colossal idiot move!

    I forgot to incorporate a delay in the setup to give the teensy time to get load everything properly..
    I think I read more about this on the forums somewhere once upon a time...
  35. DemolishunWork: Thanks for that clarification!...

    DemolishunWork:

    Thanks for that clarification! makes sense, however I'm still not sure why the teensy's would start their program and then freeze instantly.. They hadn't done this earlier. Any...
  36. It also seems that the teensy loader pushes...

    It also seems that the teensy loader pushes whatever last compiled and uploaded sketch was used anytime the reset button is hit on any teensy..

    The reset button on any of the teensys causes the...
  37. teensy 3.1, windows 8, and "unknown USB Device (Device descriptor request failed)"

    Hey everone, I've had my arduino ide setup and working for quite some time now doing things with teensy, and other arduino platforms.

    Recently today i got the error: "unknown USB Device (Device...
  38. Large portable led display project, and a question about power / cable connectors!

    I'm working on an led display project that has some special requirements due to it's need to be portable and fit in a fairly small-ish container.
    This led me to develop a folding led panel system...
  39. Good catch, I missed this post thank you for...

    Good catch, I missed this post thank you for linking!
  40. Is 3,840 led's too much for 1 teensy 3.1 using the OctoWS2811 library?

    Hey everyone, I'm building a portable led display for a friend and I've come up with a size that seems pretty good for his dj setup, however the size * the led density i'm using will put the total...
  41. Thank You! The eye graphics I created in...

    Thank You!

    The eye graphics I created in photoshop, and used some python code in another app to convert it to an RGB image array which I copy pasted into the arduino code. All the animation is...
  42. Completed Project : 704 Led Top Hat + teensy 3.1 + Octows811 library

    Been working on an led hat to take with me to a few music fests this summer, and this is it! Video doesn't do the colors justice, as always the neopixels are way to bright :)
    1968
    ...
  43. That was quite literally all I had forgotten. Its...

    That was quite literally all I had forgotten. Its working now thanks for pointing this out. This is what happens when I rush : )
  44. Ah alas, I did not connect pins 15 and 16. I will...

    Ah alas, I did not connect pins 15 and 16. I will give that a go and see if it fixes the problem.

    The standard neopixel library does something similar, I only test say pin 2, but all 8 pins that...
  45. OctoWS2811 library and teensy 3.1 - issue with leds.show(); command?

    When ever I run this code it sets the led's to full bright/white no matter what leds.setPixel() is doing. It only does this when the leds.show() function is called, and it only does so on the led's...
  46. Thanks again! I picked one of those up. I didn't...

    Thanks again! I picked one of those up. I didn't even know that was a thing with usb hubs, good to know.

    I've been making decent headway with the teensy / touch designer combo, currently I have a...
  47. Awesome, I will pick one of those up soon. Do...

    Awesome, I will pick one of those up soon.

    Do I just choose different com ports with multiple teensy's running? Do I need to setup anything in the arduino sketch to indicate which one's which?
    ...
  48. Paul: It's working! Your tip about the...

    Paul:
    It's working! Your tip about the .readBytes() did the trick. I'm sure it's faster now too, but for whatever reason the strange flicker is gone as well. Not going to worry too much about why,...
  49. After my last lengthy struggle with what turned...

    After my last lengthy struggle with what turned out to be using the wrong type of logic level converter I've been sure to follow the setup guides to a T :D

    Currently, this thread's project resides...
  50. Thanks for the tips everyone, going to try and...

    Thanks for the tips everyone, going to try and optimize / fix serial communication but if I can't work out that bug I'm experiencing with the flickering I'll go with one of the other two options and...
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