//#include <ledc.h>
void setup() {
  // put your setup code here, to run once:
  ledcSetup(0,1000,10);
  ledcSetup(1,2000,11);
  ledcAttachPin(2,0);
  ledcAttachPin(4,1);
  Serial.begin(115200);
  Serial.println("Hello,ESP32!");
}
void loop() {
  // put your main code here, to run repeatedly:
  for(int i=0;i<256;i++)
  {
    ledcWrite(0,1);
    Serial.print("LED pin 2 : ");
    Serial.println(i);
    delay(20);
  }
  ledcWrite(0,0);
  delay(1000);
  for(int j=0;j=256;j++);
  {
    ledcWrite(1,j);
     Serial.print("LED pin 4 : ");
     Serial.println(j);
    delay(20);
  }
  ledcWrite(1,0);
  delay(1000);
}