Beiträge von Serhii

  • USB/Serial connected option for driving 300+ LEDs

    Thanks for explanation.


    I've tried to use 1000000 baud rate and it seems good on both sides - I can send it from Linux and receive on Arduino.

    With such speed of USB/Serial transfer it's possible to pass information for ~500 LEDs with 60 FPS.

    I don't know yet if there will be problems with setting such amount of LEDs on Arduino side (seems like all works good with 60 LEDs I have here).


    As I see common use of ESP32/ESP8266 is done via WLAN protocol, but I'm trying to stick to USB/Serial for now. Maybe I will be forced to switch to network communication if this path with USB/Serial is not possible for my final configuration.

  • USB/Serial connected option for driving 300+ LEDs

    Hello,

    I've built prototype ambilight system for Linux Ubuntu based node, X11 grabber for data capturing, Arduino Nano with FastLED and Adalight sketch (using this tutorial https://sudokin.com/diy-arduin…s2812b-full-build-how-to/). And now I see that with 115200 baud of serial connection I have about 62 fps update rate for 60 LEDs. But I want more - 300 LEDs or maybe even more. What hardware/software combination allow to achieve those values?

    Probably additional RPi can help here, but use of USB/Serial device for driving LED is so tempting here as I don't want to have all that burden with video signal splitting/capturing. And this ambient light system aimed for video wall configuration (say 5x1 monitors ) which will be not easily handled by RPi anyway.

    Can you please guide me to possible solutions suitable for this case (x11 grabbing at input, 300+ LEDS driven at output) ?

    Thanks!