#define COUNT_LOW 0
#define COUNT_HIGH 8888
#define TIMER_WIDTH 16
#include "esp32-hal-ledc.h"
void setup(){
  Serial.begin(9600);
  ledcSetup(1,50,TIMER_WIDTH);
  ledcAttachPin(18,1);
}
void loop(){
  for(int i=COUNT_LOW ; i<COUNT_HIGH ; i=i+100)
  {
    ledcWrite(1,i);
    Serial.print(1,i);
    delay(50);
  }
}