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ول المحتويات مقدمــــــــــة عن المشروع متطلبات المشروع المنتجات الخاصة بالمشروع طريقة العمل والتوصيل الكــــــــــود البرمجي

عمل ألة حاسبة باستخدام الاردوينو

F84NB1SJUQSIXYA.LARGEالكــــــــــود البرمجي

  1. #include //Header file for LCD from
  2. #include //Header file for Keypad
  4. const byte ROWS = 4; // Four rows
  5. const byte COLS = 4; // Three columns
  7. // Define the Keymap
  8. char keys[ROWS][COLS] = {
  10. {‘7’,‘8’,‘9’,‘D’},
  12. {‘4’,‘5’,‘6’,‘C’},
  14. {‘1’,‘2’,‘3’,‘B’},
  16. {‘*’,‘0’,‘#’,‘A’}
  18. };
  20. byte rowPins[ROWS] = { 0, 1, 2, 3 };// Connect keypad ROW0, ROW1, ROW2 and ROW3 to these Arduino pins.
  21. byte colPins[COLS] = { 4, 5, 6, 7 }; // Connect keypad COL0, COL1 and COL2 to these Arduino pins.
  23. Keypad kpd = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS ); // Create the Keypad
  25. const int rs = 8, en = 9, d4 = 10, d5 = 11, d6 = 12, d7 = 13; //Pins to which LCD is connected
  26. LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
  28. long Num1,Num2,Number;
  29. char key,action;
  30. boolean result = false;
  32. void setup() {
  33. lcd.begin(16, 2); //We are using a 16*2 LCD display
  34. lcd.print(“DIY Calculator”); //Display a intro message
  35. lcd.setCursor(0, 1); // set the cursor to column 0, line 1
  36. lcd.print(“-CircuitDigest”); //Display a intro message
  38. delay(2000); //Wait for display to show info
  39. lcd.clear(); //Then clean it
  40. }
  42. void loop() {
  44. key = kpd.getKey(); //storing pressed key value in a char
  46. if (key!=NO_KEY)
  47. DetectButtons();
  49. if (result==true)
  50. CalculateResult();
  52. DisplayResult();
  53. }
  55. void DetectButtons()
  56. {
  57. lcd.clear(); //Then clean it
  58. if (key==‘*’) //If cancel Button is pressed
  59. {Serial.println (“Button Cancel”); Number=Num1=Num2=0; result=false;}
  61. if (key == ‘1’) //If Button 1 is pressed
  62. {Serial.println (“Button 1”);
  63. if (Number==0)
  64. Number=1;
  65. else
  66. Number = (Number*10) + 1; //Pressed twice
  67. }
  69. if (key == ‘4’) //If Button 4 is pressed
  70. {Serial.println (“Button 4”);
  71. if (Number==0)
  72. Number=4;
  73. else
  74. Number = (Number*10) + 4; //Pressed twice
  75. }
  77. if (key == ‘7’) //If Button 7 is pressed
  78. {Serial.println (“Button 7”);
  79. if (Number==0)
  80. Number=7;
  81. else
  82. Number = (Number*10) + 7; //Pressed twice
  83. }
  86. if (key == ‘0’)
  87. {Serial.println (“Button 0”); //Button 0 is Pressed
  88. if (Number==0)
  89. Number=0;
  90. else
  91. Number = (Number*10) + 0; //Pressed twice
  92. }
  94. if (key == ‘2’) //Button 2 is Pressed
  95. {Serial.println (“Button 2”);
  96. if (Number==0)
  97. Number=2;
  98. else
  99. Number = (Number*10) + 2; //Pressed twice
  100. }
  102. if (key == ‘5’)
  103. {Serial.println (“Button 5”);
  104. if (Number==0)
  105. Number=5;
  106. else
  107. Number = (Number*10) + 5; //Pressed twice
  108. }
  110. if (key == ‘8’)
  111. {Serial.println (“Button 8”);
  112. if (Number==0)
  113. Number=8;
  114. else
  115. Number = (Number*10) + 8; //Pressed twice
  116. }
  119. if (key == ‘#’)
  120. {Serial.println (“Button Equal”);
  121. Num2=Number;
  122. result = true;
  123. }
  125. if (key == ‘3’)
  126. {Serial.println (“Button 3”);
  127. if (Number==0)
  128. Number=3;
  129. else
  130. Number = (Number*10) + 3; //Pressed twice
  131. }
  133. if (key == ‘6’)
  134. {Serial.println (“Button 6”);
  135. if (Number==0)
  136. Number=6;
  137. else
  138. Number = (Number*10) + 6; //Pressed twice
  139. }
  141. if (key == ‘9’)
  142. {Serial.println (“Button 9”);
  143. if (Number==0)
  144. Number=9;
  145. else
  146. Number = (Number*10) + 9; //Pressed twice
  147. }
  149. if (key == ‘A’ || key == ‘B’ || key == ‘C’ || key == ‘D’) //Detecting Buttons on Column 4
  150. {
  151. Num1 = Number;
  152. Number =0;
  153. if (key == ‘A’)
  154. {Serial.println (“Addition”); action = ‘+’;}
  155. if (key == ‘B’)
  156. {Serial.println (“Subtraction”); action = ‘-‘; }
  157. if (key == ‘C’)
  158. {Serial.println (“Multiplication”); action = ‘*’;}
  159. if (key == ‘D’)
  160. {Serial.println (“Devesion”); action = ‘/’;}
  162. delay(100);
  163. }
  165. }
  167. void CalculateResult()
  168. {
  169. if (action==‘+’)
  170. Number = Num1+Num2;
  172. if (action==‘-‘)
  173. Number = Num1-Num2;
  175. if (action==‘*’)
  176. Number = Num1*Num2;
  178. if (action==‘/’)
  179. Number = Num1/Num2;
  180. }
  182. void DisplayResult()
  183. {
  184. lcd.setCursor(0, 0); // set the cursor to column 0, line 1
  185. lcd.print(Num1); lcd.print(action); lcd.print(Num2);
  187. if (result==true)
  188. {lcd.print(” =”); lcd.print(Number);} //Display the result
  190. lcd.setCursor(0, 1); // set the cursor to column 0, line 1
  191. lcd.print(Number); //Display the result
  192. }
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