arduino ibox项目实战26－ASCIITable实验

armeasy

硬件平台：PC机一台，ibox卡片电脑一只，arduino扩展板一个

软件平台：WIN7操作系统，android4.0或android4.4系统

实验目标：通过串口打印函数将ascii码值在调试窗口打印出来。

打开arduino的IDE开发工具，依次点击文件->示例->04.Communication->ASCIITable，ASCIITable的示例程序将会被打开，其源码如下：

1. void setup() {
   
2.   //Initialize serial and wait for port to open:
   
3.   Serial.begin(9600);
   
4.   while (!Serial) {
   
5.     ; // wait for serial port to connect. Needed for Leonardo only
   
6.   }
   
7. 
   
8.   // prints title with ending line break
   
9.   Serial.println("ASCII Table ~ Character Map");
   
10. }
    
11. 
    
12. // first visible ASCIIcharacter '!' is number 33:
    
13. int thisByte = 33;
    
14. // you can also write ASCII characters in single quotes.
    
15. // for example. '!' is the same as 33, so you could also use this:
    
16. //int thisByte = '!';
    
17. 
    
18. void loop() {
    
19.   // prints value unaltered, i.e. the raw binary version of the
    
20.   // byte. The serial monitor interprets all bytes as
    
21.   // ASCII, so 33, the first number,  will show up as '!'
    
22.   Serial.write(thisByte);
    
23. 
    
24.   Serial.print(", dec: ");
    
25.   // prints value as string as an ASCII-encoded decimal (base 10).
    
26.   // Decimal is the  default format for Serial.print() and Serial.println(),
    
27.   // so no modifier is needed:
    
28.   Serial.print(thisByte);
    
29.   // But you can declare the modifier for decimal if you want to.
    
30.   //this also works if you uncomment it:
    
31. 
    
32.   // Serial.print(thisByte, DEC);
    
33. 
    
34. 
    
35.   Serial.print(", hex: ");
    
36.   // prints value as string in hexadecimal (base 16):
    
37.   Serial.print(thisByte, HEX);
    
38. 
    
39.   Serial.print(", oct: ");
    
40.   // prints value as string in octal (base 8);
    
41.   Serial.print(thisByte, OCT);
    
42. 
    
43.   Serial.print(", bin: ");
    
44.   // prints value as string in binary (base 2)
    
45.   // also prints ending line break:
    
46.   Serial.println(thisByte, BIN);
    
47. 
    
48.   // if printed last visible character '~' or 126, stop:
    
49.   if (thisByte == 126) {    // you could also use if (thisByte == '~') {
    
50.     // This loop loops forever and does nothing
    
51.     while (true) {
    
52.       continue;
    
53.     }
    
54.   }
    
55.   // go on to the next character
    
56.   thisByte++;
    
57. }

复制代码

运行程序，观察调试窗口上的打印信息。