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I've been looking at the waveforms generated by a few different libraries on an Oscilloscope and this is what I have found: https://www.youtube.com/watch?v=juHncOeou84&list=PLJsn2WbyqSNiqA7suLRMgUdBRK5nxJqHl The NeoPixel Library is very tightly timed - this makes sense given that you are only...

FYI, the latest OctoWS2811 included in teensyduino isn't the latest on github: This version was included with teensyduino 1.20-rc3 https://github.com/PaulStoffregen/OctoWS2811/commit/61c33afb372165c31472a36d52d4f3f663b8023b I'm still seeing the flicker with the latest OctoWS2811 library from...

There aren't any other copies of OctoWS2811 in my ~/sketchbook/ $ locate OctoWS2811.h /home/<username>/Downloads/OctoWS2811/OctoWS2811.h /home/<username>/apps/arduino-1.0.5/libraries/OctoWS2811/OctoWS2811.h /home/<username>/apps/arduino-1.0.5-linux64/libraries/OctoWS2811/OctoWS2811.h...

It has been a long road dealing with flickering LEDS. The same exact setup flickers madly with a Teensy 3.1, but runs smoothly with the Teensy 3.0. I got my project to a good state and dealt with the power issues with filter caps close to the strips, adequate power supply & thick enough wire...

The tests that I have been running have used the stock PlasmaAnimation (https://github.com/PaulStoffregen/OctoWS2811/blob/master/examples/PlasmaAnimation/PlasmaAnimation.ino) Even when the cat6/data line is not connected to anything (no LEDs connected) I see this data-line jitter. If I add a...

Checkout my Oscilloscope, you can see the ghost of several jitters up to ~ 120ns that is close to a 10% shift of the 1250ns (1.25us). Take a look: http://imgur.com/0yQxkVf you can see the waveform taking 8 sections (1.25us/800khz per click.) I don't doubt that you have massive numbers of...

Whoops missed that. I'll patch that up and try again tonight. Thank you.

I have uncovered a number of issues on my project. I added filter caps to my LED strips, I eliminated a couple ground loops, found a power supply that has Active PFC and am using one of Paul's OctoWS2811 adapter boards with Cat6 cable. My original Teensy 3.0 let the smoke out and I'm now using...

I was able to get my hands on an older oscilloscope. I am clearly seeing jitter in the data line. The consistently reproducible for me with the stock Plasma Animation example. The flicker is the worst near the end of my strips. Lowering the data rate to 400khz helps eliminate most of the...

I have an OctoWS2811 project that I'm working on https://www.youtube.com/watch?v=2CL4wqNrfoU 1 Teensy 3, 8x 120px strips arranged vertically. The video display and movie2serial program works well. I want to use something other than Processing to communicate with the microcontroller. I'd...

Awesome news!! It looks like you've got a capacitor(probably the 0.1uf you've recommended in another thread) on the buffer chip's vcc and 8x 100 ohm impedance matching resistors. What is the ninth component? Ordered!

I've got a project that I'm working on with the OctoWS2811 library. This is what I have so far: https://www.youtube.com/watch?v=2CL4wqNrfoU 8x WS2812B strips of 120px. 2x 26a power supplies Teensy 3.0 with OctoWS2811 @ 96mhz I'm noticing that when I plug a laptop into the teensy that I get...

Are the Libraries that come with teensyduino somewhere in a git repository? If not, can they be? I'm using the OctoWS2811 on a project and have some updates I have made to the movie2serial to add a vertical layout and I'd love to contribute back. I saw this thread talking about how parts of...

Thanks for the tip :-) Putting the resistors after the buffer chip makes sense to me now. With my setup I've tried 220, 440 and 470 ohms. 440 seems to be the best at this point until I can get my hands on an Oscilloscope. I have a barely noticeable occasional flicker with the 470ohm resistors...

I've actually picked up the buffer chip and am using it, also 220 ohm resistors. Here are some pictures of my board: https://plus.google.com/+ColinHarrington/posts/4bzKkb6FYjJ I've picked up some heavier wire for the final mounting. I've acquired 2x 26a Meanwell 5v power supplies that I'm...

Awesome, I was planning on doing this in the final mounting anyway!

I played around with different values, I was able to get a little less flicker, but I haven't eliminated it yet :-/ Oh and it was easy to get more flickering too. I'm guessing that configuring those timing pieces is only one piece of the puzzle. I noted that the colors seemed to shift a...

I have a few WS2812B strips (Thank you Ray Wu!). The Simple Red, Green Blue code works fine, I'm getting some flickering running in high-speed mode (800khz) It is more prominent later in my chain, usually at or after pixel 60 (120px in the chain), and more evident when I'm using blended colors...