| /* | |
| Running process using Process class. | |
| This sketch demonstrate how to run linux processes | |
| using a YunShield/Yún | |
| created 5 Jun 2013 | |
| by Cristian Maglie | |
| This example code is in the public domain. | |
| http://www.arduino.cc/en/Tutorial/Process | |
| */ | |
| void setup() { | |
| // Initialize Bridge | |
| Bridge.begin(); | |
| // Initialize Serial | |
| SerialUSB.begin(9600); | |
| // Wait until a Serial Monitor is connected. | |
| while (!SerialUSB); | |
| // run various example processes | |
| runCurl(); | |
| runCpuInfo(); | |
| } | |
| void loop() { | |
| // Do nothing here. | |
| } | |
| void runCurl() { | |
| // Launch "curl" command and get Arduino ascii art logo from the network | |
| // curl is command line program for transferring data using different internet protocols | |
| Process p; // Create a process and call it "p" | |
| p.begin("curl"); // Process that launch the "curl" command | |
| p.addParameter("http://www.arduino.cc/asciilogo.txt"); // Add the URL parameter to "curl" | |
| p.run(); // Run the process and wait for its termination | |
| // Print arduino logo over the Serial | |
| // A process output can be read with the stream methods | |
| while (p.available() > 0) { | |
| char c = p.read(); | |
| SerialUSB.print(c); | |
| } | |
| // Ensure the last bit of data is sent. | |
| SerialUSB.flush(); | |
| } | |
| void runCpuInfo() { | |
| // Launch "cat /proc/cpuinfo" command (shows info on Atheros CPU) | |
| // cat is a command line utility that shows the content of a file | |
| Process p; // Create a process and call it "p" | |
| p.begin("cat"); // Process that launch the "cat" command | |
| p.addParameter("/proc/cpuinfo"); // Add the cpuifo file path as parameter to cut | |
| p.run(); // Run the process and wait for its termination | |
| // Print command output on the SerialUSB. | |
| // A process output can be read with the stream methods | |
| while (p.available() > 0) { | |
| char c = p.read(); | |
| SerialUSB.print(c); | |
| } | |
| // Ensure the last bit of data is sent. | |
| SerialUSB.flush(); | |
| } | |