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<div class=“md”>Hi everyone, I am trying to display a series of successive frames on a 16 * 16 WS2812B LED Matrix using an ESP32. I am trying it out with 3 frames. For some reason, it is getting stuck at frame 1 (Swiss flag). Here's the code: <code>#include <FastLED.h></code> <code>#define NUM_LEDS 16*16</code> <code>#define DATA_PIN 4</code> <code>CRGB leds[NUM_LEDS];</code> <code>void setup() {</code> <code>FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);</code> <code>}</code> <code>void setDisplay(CRGB frame[16][16]){int count = 0;int sign = -1;int rowIndex = 0;</code> <code>for(int i = 0; i < 16; i++){</code> <code>for(int j = 0; j < 16; j++){</code> <code>if(sign < 0){</code> <code>rowIndex = 16 - j -1;}</code> <code>else{rowIndex = j;}</code> <code>leds[count] = frame[i][rowIndex];count++;}sign *= -1;</code> <code>}</code> <code>}</code> <code>void loop(){</code> <code>CRGB frame1[16][16] = {{0xfe0000, 0xfe0000,…, 0xfe0000, 0xfe0000}};</code> <code>CRGB frame2[16][16] = {{0xf9f9f8, 0x406c9a,…, 0xe21c36, 0xf3e5e7}};</code> <code>CRGB frame3[16][16] = {{0xff0000, 0xff0000,…, 0xff0000, 0xff0000}};</code> <code>while(1){</code> <code>setDisplay(frame1); // Swiss</code> <a href=“https://flagFastLED.show”><code>flag</code></a> <a href=“https://flagFastLED.show”><code>FastLED.show</code></a><code>();</code> <code>delay(2000);</code> <code>setDisplay(frame2); // French flag</code> <a href=“https://FastLED.show”><code>FastLED.show</code></a><code>();</code> <code>delay(2000);</code> <code>setDisplay(frame3); // Red screen</code> <a href=“https://FastLED.show”><code>FastLED.show</code></a><code>();</code> <code>delay(2000);}</code> <code>}</code> I tried switching the order of <code>delay</code> and <code>FastLED.show</code> after calling <code>setDisplay</code>, and this time it got to the French Flag but then got stuck there, never made it to the last frame (the red screen). [video] I did try to insert a counter inside of the while loop and Serial.print the value to make sure the loop is running and it is; the counter keeps going up. I would greatly appreciate any help! I do not know what is going wrong and why… Thanks! <a href=“https://reddit.com/link/14ubo0s/video/0kxbyyx3csab1/player”>https://reddit.com/link/14ubo0s/video/0kxbyyx3csab1/player</a> </div> submitted by <a href=“https://old.reddit.com/user/vishan_1”> /u/vishan_1 </a> <a href=“https://old.reddit.com/r/FastLED/comments/14ubo0s/frames_getting_stuck_with_esp32_and_16_by_16_led/”>[link]</a> <a href=“https://old.reddit.com/r/FastLED/comments/14ubo0s/frames_getting_stuck_with_esp32_and_16_by_16_led/”>[comments]</a>

Frames getting stuck with ESP32 and 16 by 16 LED Matrix

Frames getting stuck with ESP32 and 16 by 16 LED Matrix