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Arduino计算器程序

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ID:469959发表于 2019-1-18 08:47|显示全部楼层

vch

vch

  1. #include< Keypad.h>
  2. #include< LiquidCrystal.h>

  4. //d7--d4,12 11 10 9 e-8 rs-7 1234--A2--A5 5678--2354
  5. LiquidCrystal lcd(7, 8, 9, 10, 11, 12);

  7. // 2. Keypad Pins
  8. const byte Rows = 4;
  9. const byte Cols = 4;
  10. char keys[Rows][Cols] =
  11. {
  12.   {'1', '2', '3', '+'},
  13.   {'4', '5', '6', '-'},
  14.   {'7', '8', '9', '*'},
  15.   {'C', '0', '=', '/'}
  16. };
  17. byte rowPins[Rows] = {A2, A3, A4, A5};
  18. byte colPins[Cols] = {2, 3, 4, 5};
  19. Keypad customKeypad = Keypad(makeKeymap(keys), rowPins, colPins, Rows, Cols);

  21. // 3. Dot Button
  22. int dot = A0;
  23. int dotFlag = 0;
  24. int dotButton = 0;

  26. // 4. Calculator Operators
  27. float num1, num2, fraction;
  28. float total;
  29. char operation, button;

  31. // 5. Loading Setup
  32. char input[16];
  33. int n = 1750;

  35. void setup()
  36. {
  37.   // Initialize dot button as input to Arduino
  38.   pinMode(dot, INPUT);

  40.   // Initialize LCD Size
  41.   lcd.begin(16, 2);

  43.   // LCD Loading Setup Begin
  44.   lcd.clear();
  45.   lcd.setCursor(3, 0);
  46.   lcd.print("LOADING...");
  47.   for (int i = 0; i< 16; i++)
  48.   {
  49.        lcd.setCursor(i, 1);
  50.        lcd.write(255);
  51.        delay(50);
  52.   }
  53.   lcd.clear();
  54.   lcd.setCursor(1, 0);
  55.   lcd.print("Simple Arduino");
  56.   lcd.setCursor(3, 1);
  57.   lcd.print("Calculator");
  58.   delay(n);
  59.   lcd.clear();
  60.   lcd.setCursor(0, 0);
  61.   lcd.print("Done By Students");
  62.   lcd.setCursor(2, 1);
  63.   lcd.print("Meznan Bahri");
  64.   delay(n);
  65.   lcd.clear();
  66.   lcd.setCursor(1, 0);
  67.   lcd.print("Dareen Zamzami");
  68.   lcd.setCursor(2, 1);
  69.   lcd.print("Joud Mannaa");
  70.   delay(n);
  71.   lcd.clear();
  72.   lcd.setCursor(1, 0);
  73.   lcd.print("Samira Laihabi");
  74.   lcd.setCursor(2, 1);
  75.   lcd.print("& Rana Johar");
  76.   delay(n);
  77.   lcd.clear();
  78.   // LCD Loading Setup End
  79. }
  80. void loop()
  81. {
  82.   // First while loop for num1.
  83.   while (1)
  84.   {
  85.        dotButton = digitalRead(dot);
  86.        button = customKeypad.getKey();
  87.        if (button == 'C')
  88.        {
  89.        dotFlag = 0;
  90.        num1 = 0;
  91.        num2 = 0;
  92.        fraction = 0;
  93.        total = 0;
  94.        operation = 0;
  95.        lcd.clear();
  96.        }
  97.        else if (dotButton == LOW)
  98.        {
  99.        dotFlag = 1;
  100.        }
  101.        else if (button >= '0'&& button< = '9')
  102.        {
  103.        if (dotFlag == 0)
  104.        {
  105.          num1 = num1 * 10 + (button - '0');
  106.          lcd.setCursor(0, 0);
  107.          lcd.print(num1);
  108.        }
  109.        else if (dotFlag == 1)
  110.        {
  111.          fraction = (button - '0');
  112.          num1 = num1 + (fraction / 10);
  113.          lcd.setCursor(0, 0);
  114.          lcd.print(num1);
  115.          dotFlag++;
  116.        }
  117.        else if (dotFlag == 2)
  118.        {
  119.          fraction = (button - '0');
  120.          num1 = num1 + (fraction / 100);
  121.          lcd.setCursor(0, 0);
  122.          lcd.print(num1);
  123.          dotFlag++;
  124.        }
  125.        }
  126.        else if (button == '-' || button == '+' || button == '*' || button == '/')
  127.        {
  128.        operation = button;
  129.        dotFlag = 0;
  130.        lcd.setCursor(0, 1);
  131.      lcd.print(operation);
  132.        break;
  133.        }
  134.   }
  135.   // Second while loop for num2.
  136.   while (1)
  137.   {
  138.        dotButton = digitalRead(dot);
  139.        button = customKeypad.getKey();
  140.        if (button == 'C')
  141.        {
  142.        dotFlag = 0;
  143.        num1 = 0;
  144.        num2 = 0;
  145.        fraction = 0;
  146.        total = 0;
  147.        operation = 0;
  148.        lcd.clear();
  149.        break;
  150.        }
  151.        else if (dotButton == LOW)
  152.        {
  153.        dotFlag = 1;
  154.        }
  155.        else if (button >= '0'&& button< = '9')
  156.        {
  157.        if (dotFlag == 0)
  158.        {
  159.          num2 = num2 * 10 + (button - '0');
  160.          lcd.setCursor(1, 1);
  161.          lcd.print(num2);
  162.        }
  163.        else if (dotFlag == 1)
  164.        {
  165.          fraction = (button - '0');
  166.          num2 = num2 + (fraction / 10);
  167.          lcd.setCursor(1, 1);
  168.          lcd.print(num2);
  169.          dotFlag++;
  170.        }
  171.        else if (dotFlag == 2)
  172.        {
  173.          fraction = (button - '0');
  174.          num2 = num2 + (fraction / 100);
  175.          lcd.setCursor(1, 1);
  176.          lcd.print(num2);
  177.          dotFlag++;
  178.        }
  179.        }
  180.        if (button == '=')
  181.        {
  182.        domath();
  183.        break;
  184.        }
  185.   }
  186.   // Third while loop for ensuring C button is executed after while loop 2.
  187.   while (1)
  188.   {
  189.        button = customKeypad.getKey();
  190.        if (button == 'C')
  191.        {
  192.        dotFlag = 0;
  193.        num1 = 0;
  194.        num2 = 0;
  195.        fraction = 0;
  196.        total = 0;
  197.        operation = 0;
  198.        lcd.clear();
  199.        break;
  200.        }
  201.   }
  202. }
  203. void domath()
  204. {
  205.   switch (operation)
  206.   {
  207.        case '+':
  208.        total = num1 + num2;
  209.        break;
  210.        case '-':
  211.        total = num1 - num2;
  212.        break;
  213.        case '/':
  214.        total = num1 / num2;
  215.        break;
  216.        case '*':
  217.        total = num1 * num2;
  218.        break;
  219.   }
  220.   lcd.print('=');
  221.   if (operation == '/'&& num2 == 0)
  222.   {
  223.        lcd.print("ERROR 0 DIV");
  224.   }
  225.   else
  226.   {
  227.        lcd.print(total);
  228.   }
  229. }

复制代码
ID:1发表于 2019-1-19 02:00|显示全部楼层
补全原理图或者详细说明一下电路连接即可获得100+黑币
ID:666465发表于 2019-12-21 00:55来自手机|显示全部楼层
你好，我想问一下用Proteus仿真arduino328开发版实现6计算器功能的源码有吗，或者是你会做吗？
ID:1021009发表于 2022-4-23 18:11|显示全部楼层
作者使用的keypad库是下载的哪一个，我用的是proteus 8仿真工具
ID:138707发表于 2023-7-29 18:25|显示全部楼层
作者使用的keypad库是下载的哪一个

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