She'll script execution from Linino web server

Official Hardware Classic Yún
1

Hi Folks,

New to the forum, but bit tinkering with arduino for a couple years now. Most of the time I've had great luck finding examples out there for the huge supported community. This time, however, I'm at a loss, and thus hoping to find some answers here.

I'm creating a diagnostics HTTP page on the Linino. I can already launch she'll scripts without fail from sketches, that's not an issue. What I run into from time to time is bridge lockup, either due to my code or something else. What I want is the ability to click a link on the web page and have it perform the "restart-MCU" function since my Yun is not in a convenient place for me to access the reset button. I don't know much about the web server, and it's permissions. Hoping to find a step by step on allowing script execution, and how to perform this via Java, or pho, whatever is required.

Thanks in advance!

2

Install php5 php5-cgi:

http://forum.arduino.cc/index.php?topic=221261.msg1607985#msg1607985

nano /www/resetmcu.php

<?php
if (isset($_GET["reset"])) {
    	//echo "Reset MCU";
	system("/usr/bin/reset-mcu");
}
?>
<form action="resetmcu.php" method="GET">
<input type="submit" name="reset" value="Reset MCU">
</form>
3

Arduino code:

/*
  Blink
  Turns on an LED on for one second, then off for one second, repeatedly.

  Most Arduinos have an on-board LED you can control. On the Uno and
  Leonardo, it is attached to digital pin 13. If you're unsure what
  pin the on-board LED is connected to on your Arduino model, check
  the documentation at http://arduino.cc

  This example code is in the public domain.

  modified 8 May 2014
  by Scott Fitzgerald
 */


// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin 13 as an output.
  pinMode(13, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(13, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);              // wait for a second
  digitalWrite(13, LOW);    // turn the LED off by making the voltage LOW
  delay(1000000);              // wait for one thousand seconds
}
4

open "http://ip_address_of _arduino/resetmcu.php"

test reset by click Reset MCU button.