FastLED library does not work on esp32 devkitv1 on my arduino IDE

Projects Programming
1

I have no idea why arduinoIDE can't recognize the function from FastLED library even though i already inlude and download the library,is it because the library doesn't work one esp32?when i try with uno it seems normal,is there something to do?please help me i appreciate it so much.

Thankyou in advance

2

The Uno is a 5V device whilst the ESP32 is a 3.3V device which could be the problem

Please post your test sketch and a schematic of your project using the ESP32

3

heres the sketch,can't compile it so not tested yet

#include "FastLED.h"
#include <FastLED_NeoPixel.h>
#include <BluetoothSerial.h>
BluetoothSerial serialBT;
#define DATA_PIN 2
#define NUM_LEDS 16
#define BRIGHTNESS 6
CRGB leds {NUM_LEDS};
char cmd;
int pola = 0;

void setup() {
  Serial.begin(9600);
  serialBT.begin("MAG");
  FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
  FastLED.setBrightness(BRIGHTNESS);
  FastLED.setMaxPowerInVoltsAndMilliamps(5, 1500);    // Set power limit dari LED strip ke 5V, 1500mA
  FastLED.clear();
}

void loop() {
  if (serialBT.available())
  {
    cmd = serialBT.read();
  }
  if (cmd == '1')
  {
    pola = 1;
  }
  if (cmd == '2')
  {
    pola = 2;
  }
  if (pola == 1)
  {
    FadeInOut(0x00,0xff,0xff);
  }
  if (pola == 2)
  {
    Fire(50, 100, 10);
  }
  if (cmd == '0')
  {
    pola = 0;
  }
  if (pola == 0)
  {
    FastLED.clear();
  }



}
void FadeInOut(byte red, byte green, byte blue) {
  float r, g, b;

  for (int k = 0; k < 256; k = k + 1) {
    r = (k / 256.0) * red;
    g = (k / 256.0) * green;
    b = (k / 256.0) * blue;
    setAll(r, g, b);

  }

  for (int k = 255; k >= 0; k = k - 2) {
    r = (k / 256.0) * red;
    g = (k / 256.0) * green;
    b = (k / 256.0) * blue;
    setAll(r, g, b);

  }
}

void showStrip() {
#ifdef ADAFRUIT_NEOPIXEL_H
  // NeoPixel
  strip.show();
#endif
#ifndef ADAFRUIT_NEOPIXEL_H
  // FastLED
  FastLED.show();
#endif
}

void setPixel(int Pixel, byte red, byte green, byte blue) {
#ifdef ADAFRUIT_NEOPIXEL_H
  // NeoPixel
  strip.setPixelColor(Pixel, strip.Color(red, green, blue));
#endif
#ifndef ADAFRUIT_NEOPIXEL_H
  // FastLED
  leds[Pixel].r = red;
  leds[Pixel].g = green;
  leds[Pixel].b = blue;
#endif
}

void setAll(byte red, byte green, byte blue) {
  for (int i = 0; i < NUM_LEDS; i++ ) {
    setPixel(i, red, green, blue);
  }
  showStrip();
  strip.show();
}
void Fire(int FlameHeight, int Sparks, int DelayDuration) {
  static byte heat[NUM_LEDS];
  int cooldown;

  // Cooldown setiap cell sedikit
  for (int i = 0; i < NUM_LEDS; i++) {
    cooldown = random(0, ((FlameHeight * 10) / NUM_LEDS) + 2);

    if (cooldown > heat[i]) {
      heat[i] = 0;
    }
    else {
      heat[i] = heat[i] - cooldown;
    }
  }

  // Heat looping di diffuse dikit dikit
  for (int k = (NUM_LEDS - 1); k >= 2; k--) {
    heat[k] = (heat[k - 1] + heat[k - 2] + heat[k - 2]) / 3;
  }

  // akhir led kasih random epek
  if (random(255) < Sparks) {
    int y = random(7);
    heat[y] = heat[y] + random(160, 255);
  }

  // Convert heat ke Led colors
  for (int j = 0; j < NUM_LEDS; j++) {
    setPixelHeatColor(j, heat[j]);
  }

  FastLED.show();
  delay(DelayDuration);
}

void setPixelHeatColor(int Pixel, byte temperature) {
  // Rescale heat 0-255 ke 0-191
  byte t192 = round((temperature / 255.0) * 191);

  // Calculate ramp up dari
  byte heatramp = t192 & 0x3F; // 0...63
  heatramp <<= 2; // scale up to 0...252

  // Figure out which third of the spectrum we're in:
  if (t192 > 0x80) {                   // paling panas
    leds[Pixel].setRGB(255, 255, heatramp);
  }
  else if (t192 > 0x40) {              // b aja
    leds[Pixel].setRGB(255, heatramp, 0);
  }
  else {                               // terdingin
    leds[Pixel].setRGB(heatramp, 0, 0);
  }
}
4

Please show the exact compiler error message using the code tags.

5 
`exit status 1

no matching function for call to 'CFastLED::addLeds<WS2812B, 2, GRB>(CRGB&, int)'
`
6

Note the difference between "{}" and "[ ]" .

This line defined single int leds variable with value NUM_LEDS.

but library needs an array.

Change the line to

CRGB leds [NUM_LEDS];

and try again

7

A... it fixed,noted,thank you mr b707

8

Please mark the thread as solved

9

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