ESP32-S3 onboard RGB LED

Projects Programming
8

I thought there may be a problem with PWM on ESP32-S3, which I could also not get working. So I tried this code on ESP32-C3, it works just fine. It really looks like it is a PWM problem after all.

#include <Adafruit_NeoPixel.h> 

#define PIN 8 // ESP32-C3 built-in RGB led
#define NUMPIXELS 1

Adafruit_NeoPixel pixels (NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
#define DELAYVAL 500


void setup () {  
    Serial.begin (115200);

    Serial.printf ("   PIN %i\n", PIN);          
    
    //pinMode(pin, OUTPUT);           

    pixels.begin();

    pixels.clear();

    for(int i=0; i<NUMPIXELS; i++) {
      pixels.setPixelColor(i, pixels.Color (100, 50, 200));
      pixels.show();
      delay(2000);
    }

}

void loop () {

}