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Thread: [queued] LED matrix control with Teensy 4.0

  1. #1
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    [queued] LED matrix control with Teensy 4.0

    LED matrix control with Teensy 4.0

    https://github.com/ArminRehberger/LE...ith-Teensy-4.0

    Video:
    https://www.youtube.com/watch?v=ZAkksoPda_Q

    Functional description:
    FunctionDescriptionLEDMatrix_V1_00.pdf
    FunctionDescriptionLED.pdf

    Implementation of a LED matrix control. Four LED-Matrix with each 8x32 pixel Each matrix with 256 pixels, all together 1024 pixel.

  2. #2
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    Hi Armin, very nice.
    Can you tell me if you did a special power supply for the LEDs ? I read somewhere that USB was _not_ the way to power them, nor via the teensy. What's your experience ?

  3. #3
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    Quote Originally Posted by tochinet View Post
    Hi Armin, very nice.
    Can you tell me if you did a special power supply for the LEDs ? I read somewhere that USB was _not_ the way to power them, nor via the teensy. What's your experience ?
    Hello,
    I used four LED-Matrix with each 8x32 LEDs.
    Each matrix with 256 LEDs, all together 1024 LEDs (256LED * 4 stripes).

    Used voltage: 5V
    Per LED max. 60mA
    1024LEDs * 60mA = 61.4A

    I used two 5V 40A 200W power supplys for my four LED matrix.

    Max. power supply via USB:
    USB 1.0/1.1 5 V 0,1 A 0,5 W
    USB 2.0 5 V 0,5 A 2,5 W
    USB 3.0/3.1 (Gen1) 5 V 0,9 A 4,5 W
    USB 3.1 (Gen2) 5 V 3 A 15 W

  4. #4
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    What version of KiCad are you using? I tried versions 5.1.9 and 6.0 Neither can open your schematic...

  5. #5
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    Quote Originally Posted by Derek View Post
    What version of KiCad are you using? I tried versions 5.1.9 and 6.0 Neither can open your schematic...
    I use the KiCAD version 6.09.
    I downloaded the files from github and I could open the schematic.
    You need to open the file LEDMatrix.kicad_sch
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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