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RPi + Other Software lights keep cycling RGB issue!

Discussion in 'Hardware Support' started by Christofano, 1 September 2020.

  1. Christofano

    Christofano New Member

    I'm a bit of an amateur and am having a bit of a problem. I'm running RPI3, HDMI to usb, an arduino nano clone and Ws2812b lights with Hyperbian.

    I like Hyperbian since it's the most user friendly for noob like me.

    The video grabber is working, The lights work, I'm fairly certain it's not a power issue but whenever I turn on the LED's on my HTML control, the screen continuously keeps refreshing and the lights keep cycling RGB. See the attached images

    This only happens when the arduino nano clone is connected.

    Below I've included the arduino script I used. I read that you may need a special driver downloaded, as the chip is a CH340G but it was recognized and seemed to write successfully to the arduino. I used the create.arduino.cc driver.

    Can anyone help me? i'm probably 20 hours into this project and I finally see the lights power on but I cannot figure out the issue.


    // FastLED - Version: Latest
    #include <FastLED.h>

    #include "FastLED.h"

    // How many leds in your strip?
    #define NUM_LEDS 101

    // For led chips like Neopixels, which have a data line, ground, and power, you just
    // need to define DATA_PIN. For led chipsets that are SPI based (four wires - data, clock,
    // ground, and power), like the LPD8806 define both DATA_PIN and CLOCK_PIN
    #define DATA_PIN 6
    #define CLOCK_PIN 13

    #define COLOR_ORDER RGB

    // Adalight sends a "Magic Word" (defined in /etc/boblight.conf) before sending the pixel data
    uint8_t prefix[] = {'A', 'd', 'a'}, hi, lo, chk, i;

    // Baudrate, higher rate allows faster refresh rate and more LEDs (defined in /etc/boblight.conf)
    #define serialRate 500000
    // #define serialRate 460800

    // Define the array of leds
    CRGB leds[NUM_LEDS];

    void setup() {
    // Uncomment/edit one of the following lines for your leds arrangement.
    // FastLED.addLeds<TM1803, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<TM1804, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<TM1809, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<WS2811, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<WS2812, DATA_PIN, RGB>(leds, NUM_LEDS);
    FastLED.addLeds<WS2812B, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
    // FastLED.addLeds<UCS1903, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<UCS1903B, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<GW6205, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<GW6205_400, DATA_PIN, RGB>(leds, NUM_LEDS);

    // FastLED.addLeds<WS2801, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<SM16716, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<LPD8806, RGB>(leds, NUM_LEDS);

    // FastLED.addLeds<WS2801, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<SM16716, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<LPD8806, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);

    // initial RGB flash
    LEDS.showColor(CRGB(255, 0, 0));
    LEDS.showColor(CRGB(0, 255, 0));
    LEDS.showColor(CRGB(0, 0, 255));
    LEDS.showColor(CRGB(0, 0, 0));

    Serial.print("Ada\n"); // Send "Magic Word" string to host


    void loop() {
    // wait for first byte of Magic Word
    for(i = 0; i < sizeof prefix; ++i) {
    waitLoop: while (!Serial.available()) ;;
    // Check next byte in Magic Word
    if(prefix == Serial.read()) continue;
    // otherwise, start over
    i = 0;
    goto waitLoop;

    // Hi, Lo, Checksum

    while (!Serial.available()) ;;
    while (!Serial.available()) ;;
    while (!Serial.available()) ;;

    // if checksum does not match go back to wait
    if (chk != (hi ^ lo ^ 0x55))
    goto waitLoop;

    memset(leds, 0, NUM_LEDS * sizeof(struct CRGB));
    // read the transmission data and set LED values
    for (uint8_t i = 0; i < NUM_LEDS; i++) {
    byte r, g, b;
    r = Serial.read();
    g = Serial.read();
    b = Serial.read();
    leds.r = r;
    leds.g = g;
    leds.b = b;
    // shows new values


    Attached Files:

    Last edited: 1 September 2020