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Type: Posts; User: Quwat

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    Good to hear you got it working, upload a video...

    Good to hear you got it working, upload a video when it starts to look cool.
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    Volumetric Visualizer display Feedback wanted

    Hello Everyone

    I have completed my music visualization prototype and I would like to see what you think. :)

    I made a video that shows and explains my design, here is the full version here is...
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    PCB construction Time lapse

    Hello everybody

    I decided to make a video of me making my tenth board, its here on youtube. This is for my 3d pov music visualizer project.

    I'm using the toner transfer method so it takes a...
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    I think he is just referring to GND, I have the...

    I think he is just referring to GND, I have the same power supply it has the symbols +V & -V to show the difference between the ground for the mains and the 5v. So it leads to call the ground -5V.
    ...
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    The reason it only works when the grounds are...

    The reason it only works when the grounds are connected is because otherwise the data signal from the teensy, is like its not connected to the circuit at all. The signal comes from the teensy and it...
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    So the problem is only the neopixel library works...

    So the problem is only the neopixel library works and you think its because of the way the power is connected?

    Either the power is connected or its not. With the octo library have you connected...
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    The 10 bytes represents 20*0-15 values, these are...

    The 10 bytes represents 20*0-15 values, these are the bar values of each frequency.

    No I am not using a two way communication that relies on instant responses, I realize how inefficient that is. I...
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    OK Paul I will get to fixing those issues. But...

    OK Paul I will get to fixing those issues.

    But in the larger terms do you think the teensy and processing combination plus the overhead of POV, is capable of achieving what I want? (I would like...
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    Have you read through all of the octo library...

    Have you read through all of the octo library information yet?

    Just telling us it doesn't work doesn't give us anything to go on; what does work, what do you think is causing the problem?

    Maybe...
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    The data represents bar values it takes 4 bits to...

    The data represents bar values it takes 4 bits to store 16 values as 0-15, so I fit 2 in each byte.

    so I will make a bar music visualization, you must have seen one before? Here an led cube take...
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    Yes that is correct, got any ideas how to...

    Yes that is correct, got any ideas how to increase the performance?

    I'll won't be able to upload a photo until later today, but the setup is a little messy.
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    Sorry I didn't think the * would matter that...

    Sorry I didn't think the * would matter that much, you can't use find and replace with a space?

    Communication isn't one of my strong points (ironically could be the problem with the display...
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    I would expect that is too much. But because...

    I would expect that is too much.

    But because you are connecting to usb power, it all depends on your computer. Try searching for the output capabilities of your usb ports. Drawing to much current...
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    If you are using the teensy 3 and the ws2811,...

    If you are using the teensy 3 and the ws2811, then you can't go better than using the octosw2811 library. It is specifically designed for what you are doing.

    You are programming it with...
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    Bit-banging; instead of using the specifically...

    Bit-banging; instead of using the specifically designed library for communication, taking the crude approach and manually toggling (switching) the pins.

    That code is a little messy, don't worry...
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    Personally I'm not familiar with matlab, is it...

    Personally I'm not familiar with matlab, is it just simulating the logic structure or something? What are you trying to achieve by using it?

    Have you got the strip running, what board are you...
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    Welcome I have been working on something...

    Welcome

    I have been working on something similar, a 3d POV music visualizer that uses minim in processing.

    I posted some early code and explanations here that you may find useful.

    In the...
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    I have fixed the display code so it only updates...

    I have fixed the display code so it only updates at the start of each time section, but it doesn't appear as if it has done much to improve the speed. I will have to do more testing.
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    I think I have found the root of the problem, the...

    I think I have found the root of the problem, the display isn't only updating once for each section. This will be having a dramatic effect on performance.

    This is backwards, it should be...
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    Teensy 3 POV display serial speed problem

    Hello all

    I am working on a 3D pov music visualizer.

    But I have found the delay between processing and the running display is too large, for my purposes. I'm not sure what part of my code is...
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    No the circuit actually doesn't cost more, it...

    No the circuit actually doesn't cost more, it will cost a bit less.

    Using the 3x the 595 means I can only get a few different colours, at the cost of 3X slower update rate.

    I think that the...
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    Yes making a full schematic is on the to do list....

    Yes making a full schematic is on the to do list.

    The idea is to have the same main control as a single colour POV, but with background high resolution rainbow effects :)

    The tlc5940 is to...
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    Still don't see what I'm on about? try looking at...

    Still don't see what I'm on about? try looking at the schematic its very simple

    And yes I have tested the circuit already, made this small scale prototype in an hour
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    The PWM is controlled independently from the...

    The PWM is controlled independently from the shift registers. The shift registers only control if each led is on or not.

    All of the leds colours will have a common power, so I can only change the...
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    3D pov display Full Design

    Hello everybody

    I feel my design is ready for the insanity check, so could you please read over it and point out anything I may have missed?

    Here is the document explaining my design.
    ...
  26. What are the most important parts of your projects design?

    Hello everybody

    I am making a kit for us electronics hobbyists and I want to know what the rest of you think is important in a design.

    I know for me that cost is one of the most important...
  27. Thread: OctoWS2811 POV

    by Quwat
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    I tried to use the ws2811 strips for pov and the...

    I tried to use the ws2811 strips for pov and the performance is too low. here is a video of the best result I could get
  28. Thanks for the interest and advice guys. Yes...

    Thanks for the interest and advice guys.

    Yes the success of an open project comes down to a lot of factors out of my hands.

    But all I really want is an epic music visualization, it ends up...
  29. Yeah I have decided using processing will be the...

    Yeah I have decided using processing will be the best option all round, but the design approach wasn't exactly what I intended this post to be for, yet.

    What do you actually think of the idea?...
  30. Yes I plan on powering it with the teensy 3. I...

    Yes I plan on powering it with the teensy 3. I will do the fft in processing, this will be easy to get going and leave the potential for a nice control interface.
  31. Project brief feedback - volumetric music visualizer

    Hello everyone, I would like to see what you think of my final year high-school scholarship project :)

    My issue;

    Listening to music without visualization, is like eating without smell.
    ...
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    Teensy 3 Octows2811 pov Speed problems

    Hello world
    I am making my first pov project with the epic T3 and octo library, but I have run into a problem.

    I am at the stage where I'm trying to get all the basics up and running before I can...
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