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  1.  
  2. #include <Wire.h>
  3. #include <LiquidCrystal_I2C.h>
  4.  
  5. #include <Stepper.h>
  6. LiquidCrystal_I2C lcd(0x27, 16, 2);
  7. const int stepsPerRevolution = 1028;
  8.  
  9.  
  10. Stepper myStepper = Stepper(stepsPerRevolution, 9, 11, 10, 12);
  11. void setup() {
  12.   //Set the speed to 5 rpm:
  13.   pinMode(2, OUTPUT);
  14.   pinMode(3, OUTPUT);
  15.   pinMode(4, OUTPUT);
  16.   pinMode(5, OUTPUT);
  17.   pinMode(A3, INPUT);
  18.   pinMode(A2, INPUT);
  19.   pinMode(A1, INPUT);
  20.   pinMode(A0, INPUT);
  21.   pinMode(6, INPUT);
  22.   pinMode(7, INPUT);
  23.   myStepper.setSpeed(10);
  24.   lcd.begin();
  25.  
  26.   // Turn on the blacklight and print a message.
  27.   lcd.backlight();
  28.   lcd.print("Imeskite moneta");
  29.   // Begin Serial communication at a baud rate of 9600:
  30.   Serial.begin(9600);
  31. }
  32. boolean moneta = false;
  33. boolean iskrito = false;
  34. int daiktas = -1;
  35. void loop() {
  36.   int reading = analogRead(A3);
  37.  Serial.println(reading);
  38.  
  39.   if(digitalRead(6) == LOW){
  40.     moneta = true;
  41.     Serial.write("HIGH");
  42.     lcd.clear();
  43.     lcd.print("Pasirinkite");
  44.   }
  45.  
  46.   if(moneta){
  47.     if(analogRead(A3) >= 1000){
  48.       digitalWrite(2, HIGH);
  49.       daiktas = 1;
  50.     }
  51.   /*   if(analogRead(A2) >= 1000){
  52.       digitalWrite(3, HIGH);
  53.       daiktas = 2;
  54.     }
  55.      if(analogRead(A1) >= 1000){
  56.       digitalWrite(4, HIGH);
  57.       daiktas = 3;
  58.     }
  59.      if(analogRead(A0) >= 1000){
  60.       digitalWrite(5, HIGH);
  61.       daiktas = 4;
  62.     }*/
  63.   }
  64.   if(daiktas != -1){
  65.       lcd.clear();
  66.       lcd.print("Aciu, kad pirkote");
  67.       lcd.setCursor(0,1);
  68.       lcd.print("produktas:");
  69.       //Serial.write(daiktas);
  70.       lcd.setCursor(10,1);
  71.       lcd.print(daiktas);
  72.   }
  73.    while(moneta && !iskrito && daiktas != -1){
  74.       myStepper.step(128);
  75.       if(digitalRead(7) == LOW){
  76.         iskrito = true;
  77.        }
  78.    }
  79.    if(moneta && iskrito && daiktas != -1){
  80.     lcd.clear();
  81.     lcd.print("Imeskite moneta");
  82.     moneta = false;
  83.     iskrito = false;
  84.     daiktas = -1;
  85.     digitalWrite(2, LOW);
  86.     digitalWrite(3, LOW);
  87.     digitalWrite(4, LOW);
  88.     digitalWrite(5, LOW);
  89.    }
  90.   delay(100);
  91. }
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