기초(switch(ON)-> LED(ON), switch(OFF)-> LED(OFF))

const int switchPin = 2;
const int ledRed = 13;
int result;
void setup() {
  // put your setup code here, to run once:
  pinMode(ledRed, OUTPUT);
  pinMode(switchPin, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  result = digitalRead(switchPin);
  if(result == HIGH)
  {
    digitalWrite(ledRed, HIGH);
   
  }
  else
  {
    digitalWrite(ledRed, LOW);
  }
}