Arduino Yún Yún Serial Terminal

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1long linuxBaud = 250000;
2boolean commandMode = false;

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1void setup() {
2
3  Serial.begin(115200);
4
5  Serial1.begin(linuxBaud);
6}

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1void loop() {
2
3  // copy from virtual serial line to uart and vice versa
4
5  if (Serial.available()) {           // got anything from USB-Serial?
6
7    char c = (char)Serial.read();     // read from USB-serial
8
9    if (commandMode == false) {       // if we aren't in command mode...
10
11      if (c == '~') {                 //    Tilde '~' key pressed?
12
13        commandMode = true;           //       enter in command mode
14
15      } else {
16
17        Serial1.write(c);             //    otherwise write char to Linux
18
19      }
20
21    } else {                          // if we are in command mode...
22
23      if (c == '0') {                 //     '0' key pressed?
24
25        Serial1.begin(57600);         //        set speed to 57600
26
27        Serial.println("Speed set to 57600");
28
29      } else if (c == '1') {          //     '1' key pressed?
30
31        Serial1.begin(115200);        //        set speed to 115200
32
33        Serial.println("Speed set to 115200");
34
35      } else if (c == '2') {          //     '2' key pressed?
36
37        Serial1.begin(250000);        //        set speed to 250000
38
39        Serial.println("Speed set to 250000");
40
41      } else if (c == '3') {          //     '3' key pressed?
42
43        Serial1.begin(500000);        //        set speed to 500000
44
45        Serial.println("Speed set to 500000");
46
47      } else if (c == '~') {
48
49        Serial1.write((uint8_t *)"\xff\0\0\x05XXXXX\x0d\xaf", 11);
50
51        Serial.println("Sending bridge's shutdown command");
52
53      } else {                        //     any other key pressed?
54
55        Serial1.write('~');           //        write '~' to Linux
56
57        Serial1.write(c);             //        write char to Linux
58
59      }
60
61      commandMode = false;            //     in all cases exit from command mode
62
63    }
64
65  }
66
67  if (Serial1.available()) {          // got anything from Linux?
68
69    char c = (char)Serial1.read();    // read from Linux
70
71    Serial.write(c);                  // write to USB-serial
72
73  }
74}