// Wokwi simulation of buttons configured per
//
// S1: Exter

// https://wokwi.com/projects/374361359504133121
// for https://forum.arduino.cc/t/wiring-a-button-pull-down-bad-vs-input-pullup-best/1162985/4
//
//


const byte S1pin = 11, S2pin = 5, S3pin = 3;
const byte L1pin = 7, L2pin = 9;

void setup() {
  Serial.begin(115200);
  pinMode(S1pin, INPUT);
  pinMode(S2pin, INPUT);
  pinMode(S3pin, INPUT_PULLUP);

  pinMode(L1pin, OUTPUT);
  pinMode(L2pin, OUTPUT);

  Serial.println(
    F("See https://forum.arduino.cc/t/wiring-a-button-pull-down-bad-vs-input-pullup-best/1162985/4\n"
     "\nhttps://forum.arduino.cc/t/share-tips-you-have-come-across/428745/999 "
     " "
  ));

}

void loop() {
  int S1pressed = digitalRead(S1pin) == HIGH;
  int S2pressed = digitalRead(S2pin) == LOW;
  int S3pressed = digitalRead(S3pin) == LOW;


  // switch LEDs if a button is pressed
  if (S1pressed || S2pressed || S3pressed) {
    digitalWrite(L1pin, HIGH);
    digitalWrite(L2pin, HIGH);
  } else {
    digitalWrite(L1pin, LOW);
    digitalWrite(L2pin, LOW);
  }
}