Member #139693

Member Since: June 24, 2010

Country: United States

  • If that inspires anyone, here's what I was able to build with 3 panels (96x64) and an ESP32: http://marc.merlins.org/perso/arduino/post_2019-04-08_Clubbing_-EDM-Festival-and-Burning-Man-LED-Pants-and-Shirt-v4-on-ESP32-with-RGBPanels-and-SmartMatrix_GFX.html

  • While it's fun to use an arduino mega for smaller RGB Panels, by the time you hit 32x64, and especiallly 64x64 and above, you'll want a teensy or an ESP32, which work best with SmartMatrix.

    If you have GFX based code, or would like to port FastLED Matrix code to RGB Panels, you can use this lib: https://github.com/marcmerlin/SmartMatrix_GFX while this page gives more details on how teensy vs ESP32 and how it all fits together: http://marc.merlins.org/perso/arduino/post_2019-04-01_SmartMatrix_-SmartMatrix-Shield-v4-for-Teensy_-ESP32-shield-with-level-shifter_-and-SmartMatrix_GFX.html Have fun hacking!

  • Nick, 100 kudos to you for writing this. I thought I mostly knew how those panels worked, but your page does a fantastic job explaining the details.

  • I had a look at that code, and wrote another one that's a bit more efficient (binary code emulation for PWM) and supports using a higher level library to write to the matrix: Adadfruit::GFX. See https://github.com/marcmerlin/LED-Matrix

  • I wrote a driver for this using arduino and shift registers (optional), code is here: http://marc.merlins.org/perso/blog/cat/arduino/post_2015-01-06_Driver-for-direct-driving-single-to-3-color-LED-Matrices-with-software-PWM.html Video demo: https://www.youtube.com/watch?v=tKCOY1tTtM4

  • I've written a blog post that shows how to get 256 colors out of it, while enjoying the graphics library from adafruit and sending your own multicolor bitmaps easily (ISR routine with binary code modulation for PWM): http://marc.merlins.org/perso/arduino/post_2015-01-06_Driver-for-direct-driving-single-to-3-color-LED-Matrices-with-software-PWM.html and https://github.com/marcmerlin/LED-Matrix

  • The link to your PDF is dead now. I've written a blog post that shows how to get 256 colors out of it, while enjoying the graphics library from adafruit and sending your own multicolor bitmaps easily (ISR routine with binary code modulation for PWM): http://marc.merlins.org/perso/arduino/post_2015-01-06_Driver-for-direct-driving-single-to-3-color-LED-Matrices-with-software-PWM.html and https://github.com/marcmerlin/LED-Matrix

  • It's much easier to wire a jumper like on this picture:
    http://marc.merlins.org/perso/arduino/2011-05.html#PC-Breadboard-Xbee-Adapters_-Sparkfun-and-Adafruit
    Hopefully they'll add a jumper/switch in the next version.

  • I wrote a review of the ladyada vs this adapter.
    This adapter is definitely simpler to use, and it's nice that it's prebuilt.
    I've found the RX/TX LEDs essential when you're blind flashing a module.
    The only thing this is missing is a reset button, which is essential for blind flashing and flashing modules that go to sleep (ZB END DEVICE AT).
    I wrote a picture of a hacked up way I did that:
    http://marc.merlins.org/perso/arduino/2011-05.html#PC-Breadboard-Xbee-Adapters_-Sparkfun-and-Adafruit
    but I would have saved a lot of time figuring it out if it had come pre-installed.
    The module is also missing an ASSOC LED, which can come handy.
    But please, just add a reset button or jumper, this module is great for module flashing and programming otherwise.

No public wish lists :(