#define LED1 23
#define LED2 22
#define LED3 21
#define LED4 19
#define LED5 18
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(LED1,OUTPUT);
  pinMode(LED2,OUTPUT);
  pinMode(LED3,OUTPUT);
  pinMode(LED4,OUTPUT);
  pinMode(LED5,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(LED1,HIGH);
  delay(250);
  digitalWrite(LED1,LOW);
  delay(250);
  digitalWrite(LED2,HIGH);
  delay(250); 
  digitalWrite(LED2,LOW);
  delay(250);
  digitalWrite(LED3,HIGH);
  delay(250); 
  digitalWrite(LED3,LOW);
  delay(250);
  digitalWrite(LED4,HIGH);
  delay(250); 
  digitalWrite(LED4,LOW);
  delay(250);
  digitalWrite(LED5,HIGH);
  delay(250); 
  digitalWrite(LED5,LOW);
  delay(250);
}