Arduino Yún Process

Copy
1void setup() {
2
3  Bridge.begin();
4
5  Serial.begin(9600);
6
7  while (!Serial);

Copy
1runCurl();
2
3  runCpuInfo();
4}
5
6void loop() {
7
8  // Do nothing here.
9}

Copy
1void runCurl() {
2
3  Process p;
4
5  p.begin("curl");
6
7  p.addParameter("http://arduino.tips/asciilogo.txt");
8
9  p.run();

Copy
1while (p.available()>0) {
2
3    char c = p.read();
4
5    Serial.print(c);
6
7  }
8
9  Serial.flush();
10}

Copy
1void runCpuInfo() {
2
3  Process p;
4
5  p.begin("cat");
6
7  p.addParameter("/proc/cpuinfo");
8
9  p.run();

Copy
1while (p.available()>0) {
2
3    char c = p.read();
4
5    Serial.print(c);
6
7  }
8
9  Serial.flush();
10}

Copy
1/*
2
3  Running process using Process class.
4
5 This sketch demonstrate how to run linux processes
6
7 using a YunShield/Yún
8
9 created 5 Jun 2013
10
11 by Cristian Maglie
12
13 This example code is in the public domain.
14
15 http://www.arduino.cc/en/Tutorial/Process
16
17 */
18
19#include <Process.h>
20
21void setup() {
22
23  // Initialize Bridge
24
25  Bridge.begin();
26
27  // Initialize Serial
28
29  SerialUSB.begin(9600);
30
31  // Wait until a Serial Monitor is connected.
32
33  while (!SerialUSB);
34
35  // run various example processes
36
37  runCurl();
38
39  runCpuInfo();
40}
41
42void loop() {
43
44  // Do nothing here.
45}
46
47void runCurl() {
48
49  // Launch "curl" command and get Arduino ascii art logo from the network
50
51  // curl is command line program for transferring data using different internet protocols
52
53  Process p;        // Create a process and call it "p"
54
55  p.begin("curl");  // Process that launch the "curl" command
56
57  p.addParameter("http://arduino.tips/asciilogo.txt"); // Add the URL parameter to "curl"
58
59  p.run();      // Run the process and wait for its termination
60
61  // Print arduino logo over the Serial
62
63  // A process output can be read with the stream methods
64
65  while (p.available() > 0) {
66
67    char c = p.read();
68
69    SerialUSB.print(c);
70
71  }
72
73  // Ensure the last bit of data is sent.
74
75  SerialUSB.flush();
76}
77
78void runCpuInfo() {
79
80  // Launch "cat /proc/cpuinfo" command (shows info on Atheros CPU)
81
82  // cat is a command line utility that shows the content of a file
83
84  Process p;        // Create a process and call it "p"
85
86  p.begin("cat");   // Process that launch the "cat" command
87
88  p.addParameter("/proc/cpuinfo"); // Add the cpuifo file path as parameter to cut
89
90  p.run();      // Run the process and wait for its termination
91
92  // Print command output on the SerialUSB.
93
94  // A process output can be read with the stream methods
95
96  while (p.available() > 0) {
97
98    char c = p.read();
99
100    SerialUSB.print(c);
101
102  }
103
104  // Ensure the last bit of data is sent.
105
106  SerialUSB.flush();
107}