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代码案例/6 Arduino基础学习/24 MC猜数字（6）- 完成制作/Lesson24_2/.pydio

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代码案例/6 Arduino基础学习/24 MC猜数字（6）- 完成制作/Lesson24_2/Lesson24_2.ino

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+/*
+24 MC猜数字 - 5 完成制作 - 2
+太极创客
+www.taichi-maker.com
+
+此程序用于太极创客<<零基础入门学用Arduino教程>> 
+24 MC猜数字 - 5 完成制作 - 2
+
+修改了getRandomNumber函数。目前该函数每次调用后将显示5个随机数字。
+这五个随机数字将通过串口监视器显示出来。并且最后一个随机数字将显示在LED数码管上。
+
+2017-04-23
+*/
+void setup() {
+  Serial.begin(9600);
+  int pinNumber = 3;
+  while(pinNumber <= 9){
+    pinMode(pinNumber, OUTPUT);
+    pinNumber = pinNumber + 1;
+  }
+  randomSeed(analogRead(A0));
+}
+
+// the loop function runs over and over again forever
+void loop() {
+  int myNumber = getRandomNumber(0, 10);
+  displayNumber(myNumber);
+  delay(5000);
+  displayClear();
+  delay(500);  
+}
+
+int getRandomNumber(int minNumber, int maxNumber){
+  int randomNumber;
+  
+  int i;
+  while(i < 5){
+    i = i + 1;
+    randomNumber = random(minNumber,maxNumber);
+    displayNumber(randomNumber);
+    delay(100);
+    displayClear();
+    delay(100);
+
+    Serial.print("i = ");
+    Serial.println(i);
+    Serial.print("randomNumber = ");
+    Serial.println(randomNumber);
+    Serial.println("");    
+    
+  }
+  return randomNumber;
+}
+void displayNumber(int ledNumber){
+  switch(ledNumber){
+    case 1:  //显示1
+      digitalWrite(4, HIGH);
+      digitalWrite(7, HIGH); 
+      break;   
+    case 2:  //显示2
+      digitalWrite(3, HIGH);
+      digitalWrite(4, HIGH); 
+      digitalWrite(5, HIGH); 
+      digitalWrite(8, HIGH); 
+      digitalWrite(9, HIGH); 
+      break;   
+    case 3:   //显示3
+      digitalWrite(3, HIGH);
+      digitalWrite(4, HIGH); 
+      digitalWrite(5, HIGH); 
+      digitalWrite(7, HIGH); 
+      digitalWrite(8, HIGH); 
+      break;   
+    case 4:  //显示4
+      digitalWrite(4, HIGH); 
+      digitalWrite(5, HIGH); 
+      digitalWrite(6, HIGH); 
+      digitalWrite(7, HIGH); 
+      break;  
+    case 5:  //显示5
+      digitalWrite(3, HIGH);
+      digitalWrite(5, HIGH); 
+      digitalWrite(6, HIGH); 
+      digitalWrite(7, HIGH); 
+      digitalWrite(8, HIGH); 
+      break;
+    case 6:  //显示6
+      digitalWrite(3, HIGH);
+      digitalWrite(5, HIGH); 
+      digitalWrite(6, HIGH); 
+      digitalWrite(7, HIGH); 
+      digitalWrite(8, HIGH); 
+      digitalWrite(9, HIGH); 
+      break;    
+    case 7:  //显示7
+      digitalWrite(3, HIGH);
+      digitalWrite(4, HIGH); 
+      digitalWrite(7, HIGH);  
+      break;
+    case 8:  //显示8
+      digitalWrite(3, HIGH);
+      digitalWrite(4, HIGH);
+      digitalWrite(5, HIGH); 
+      digitalWrite(6, HIGH); 
+      digitalWrite(7, HIGH); 
+      digitalWrite(8, HIGH); 
+      digitalWrite(9, HIGH); 
+      break;
+    case 9:  //显示9
+      digitalWrite(3, HIGH);
+      digitalWrite(4, HIGH);
+      digitalWrite(5, HIGH); 
+      digitalWrite(6, HIGH); 
+      digitalWrite(7, HIGH); 
+      digitalWrite(8, HIGH); 
+      break;
+    case 0:  //显示0
+      digitalWrite(3, HIGH);
+      digitalWrite(4, HIGH);
+      digitalWrite(6, HIGH); 
+      digitalWrite(7, HIGH); 
+      digitalWrite(8, HIGH); 
+      digitalWrite(9, HIGH); 
+      break;
+    default: //显示默认
+        digitalWrite(4, HIGH); 
+        digitalWrite(5, HIGH); 
+        digitalWrite(7, HIGH); 
+        digitalWrite(8, HIGH);  
+        digitalWrite(9, HIGH);   
+    }
+}
+
+void displayClear(){
+  digitalWrite(3, LOW);
+  digitalWrite(4, LOW);
+  digitalWrite(5, LOW); 
+  digitalWrite(6, LOW); 
+  digitalWrite(7, LOW); 
+  digitalWrite(8, LOW); 
+  digitalWrite(9, LOW); 
+}
+