Svenska ElektronikForumet

Kod: Markera allt

// BUTTONS
const int buttonGreen = 8;
const int buttonRed = 9;
const int buttonYellow = 10;
 
//LEDS
const int ledGreen =  2;
const int ledRed =  3;
const int ledYellow =  4;
 
//STORE BUTTON STATES
int greenState = 0;
int redState = 0;
int yellowState = 0;
 
 
int lastActiveLED = 0; // Keep track of the activeLED
 
void setup() {
  Serial.begin(9600);
 
  pinMode(ledGreen, OUTPUT);
  pinMode(ledRed, OUTPUT);
  pinMode(ledYellow, OUTPUT);
 
  pinMode(buttonGreen, INPUT); 
  pinMode(buttonRed, INPUT); 
  pinMode(buttonYellow, INPUT); 
 
}
 
void loop(){
  // CHECK BTN STATES
  greenState = digitalRead(buttonGreen);
  redState = digitalRead(buttonRed);
  yellowState = digitalRead(buttonYellow);
 
  /**********
   *  Each of the following conditionals only sends one Serial message
   *  per button press
   **********/
 
  //GREEN
  if (greenState == HIGH) {
   //check if last active LED was not Green 
    if(lastActiveLED != ledGreen){
      //print Green since it is a new press
      Serial.print( "FIKA ");
    }   
    //store green as last active press
    lastActiveLED = ledGreen;
    digitalWrite(ledGreen, HIGH);
    delay(100);
  } 
  else {
    //clear out last active so you could reclick it
    if(lastActiveLED == ledGreen){
      lastActiveLED = 0;
    }
    digitalWrite(ledGreen, LOW); 
  }
 
  //RED
  if (redState == HIGH) {    
    if(lastActiveLED != ledRed){
      Serial.print("MAT ");
    }   
    lastActiveLED = ledRed;
    digitalWrite(ledRed, HIGH);
    delay(100);
  } 
  else {
    if(lastActiveLED == ledRed){
      lastActiveLED = 0;
    }
    digitalWrite(ledRed, LOW); 
  }
 
  //YELLOW
  if (yellowState == HIGH) {    
    if(lastActiveLED != ledYellow){
      Serial.print("ANNAT ");
    }   
    lastActiveLED = ledYellow;
    digitalWrite(ledYellow, HIGH);
    delay(100);
  } 
  else {
    if(lastActiveLED == ledYellow){
      lastActiveLED = 0;
    }
    digitalWrite(ledYellow, LOW);
  }
}