Fading with PWM on ESP32

gistfile1.txt

const byte led_gpio = 27; // the PWM pin the LED is attached to
const byte led_gpio2 = 26; // the PWM pin the LED is attached to

int MAX = 255;
int DELAY = 50;

// the setup routine runs once when you press reset:
void setup() {
  Serial.begin(115200);
  ledcAttachPin(led_gpio, 0); // assign a led pins to a channel
  ledcAttachPin(led_gpio2, 1); // assign a led pins to a channel

  // Initialize channels
  // channels 0-15, resolution 1-16 bits, freq limits depend on resolution
  // ledcSetup(uint8_t channel, uint32_t freq, uint8_t resolution_bits);
  ledcSetup(0, 4000, 8); // 12 kHz PWM, 8-bit resolution
  ledcSetup(1, 4000, 8); // 12 kHz PWM, 8-bit resolution
}

// the loop routine runs over and over again forever:
void loop() {


  for (int i=0; i<MAX; i=i+5) {
      ledcWrite(0, i); // set the brightness of the LED
      delay(DELAY);
 }
    for (int i=MAX; i>0; i=i-5) {
      ledcWrite(0, i); // set the brightness of the LED
      delay(DELAY);
 }

   delay(500);


  for (int i=0; i<MAX; i=i+5) {
      ledcWrite(1, i); // set the brightness of the LED
      delay(DELAY);
 }
    for (int i=MAX; i>0; i=i-5) {
      ledcWrite(1, i); // set the brightness of the LED
      delay(DELAY);
 }
  delay(2000);
}