/* 
Version changelog

JCS-01a
Testing syntax of switch and case construction and order of case commands
*/

#define switch1 11
#define switch2 12
#define switch3 13
#define red 8
#define yellow 9
#define green 10
#define error 7

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Test switch and case commands - JCS-01a");

  pinMode(switch1, INPUT_PULLUP);
  pinMode(switch2, INPUT_PULLUP);
  pinMode(switch3, INPUT_PULLUP);
  pinMode(red, OUTPUT);
  pinMode(yellow, OUTPUT);
  pinMode(green, OUTPUT);
  pinMode(error, OUTPUT);
  
}

void loop() {
  // put your main code here, to run repeatedly:
  int Count=0;
  if(digitalRead(switch1)==LOW){Count=Count+1;}
  if(digitalRead(switch2)==LOW){Count=Count+2;}
  if(digitalRead(switch3)==LOW){Count=Count+4;}
  Serial.print("Count = ");
  Serial.println(Count);

digitalWrite(red, LOW);
digitalWrite(yellow, LOW);
digitalWrite(green, LOW);
digitalWrite(error, LOW);

  switch (Count) {
    case 1:
    digitalWrite(red, HIGH);
    Serial.println("  Red ");
    break;
    case 2:
    digitalWrite(yellow, HIGH);
    Serial.println("  Yellow ");
    break;
    case 4:
    digitalWrite(green, HIGH);
    Serial.println("  Green ");
    break;
  }
  if(Count==0||Count==3||Count>=5) {
    digitalWrite(error, HIGH);
    Serial.println("  Error ");
  }
delay(100);
}