0000

int led1 = 2;
int led2 = 3;
int led3 = 4;

int sw = 8;
void setup() {
  // put your setup code here, to run once:
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(sw, INPUT);
}
void loop() {
  // put your main code here, to run repeatedly:
  int swInput = digitalRead(sw);
  if (swInput == ' '){
    digitalWrite (led1,HIGH);
    digitalWrite (led2,LOW);
    digitalWrite (led3,LOW);
  } else {
    (swInput == ' ');
    digitalWrite (led1,LOW);
    digitalWrite (led2,LOW);
    digitalWrite (led3,LOW);
  }
}