#include <stdio.h>
const int led1 = 23;
const int s1 = 5; 
const int s2 = 4;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, Sornnaret009");
  pinMode(led1, OUTPUT);
  pinMode(s1, INPUT_PULLUP);
  pinMode(s2, INPUT_PULLUP);
  }

  void f1(){
     for (int i = 0; i < 5; i++) {
    digitalWrite(led1, HIGH); 
    delay(500);              
    digitalWrite(led1, LOW);  
    delay(500); 
     }
  }
  void f2(){
     for (int i = 0; i < 10; i++){
    digitalWrite(led1, HIGH); 
    delay(500);              
    digitalWrite(led1, LOW);  
    delay(500); 
     }
  }

void loop() {
  if(digitalRead(s1)==LOW){
    f1();
  }
  if(digitalRead(s2)==LOW){
    f2();
  }
  else{
    digitalWrite(led1, LOW);
  }
  delay(80);
}