为什么我的代码从来没有得到命令重启？

Question

它保持失败，失败和失败。

Arduino YUN我有此代码。它必须去一个网站，并得到一个值“重新启动”，如果值“重新启动”发现它做的动作，如果“重新启动”不，然后别的什么都不做。

有时重启命令正在工作，但它并不总是工作，这让我很难过。

有谁知道为什么我的代码不工作？

#include <Bridge.h> 
#include <HttpClient.h> 

String result = String(""); 
void setup() { 
    delay(5000); 
    pinMode(2, OUTPUT); 
    Bridge.begin(); 
    digitalWrite(2, HIGH); 
} 

void loop() { 
    HttpClient client; 

    // PIN 2 
    client.get("http://www.example.com/output.php?value=reboot");// output.php outputs the value reboot and the reset the value to empty string. after 10 second php puts the value to reboot and then put the value to empty. 
    result = ""; 
    while (client.available()) { 
    char c = client.read(); 
    result = result + c; 
    } 

    if(result.indexOf("reboot") >= 0) {// this keeps failing, sometime working and sometime not working 
    digitalWrite(2, LOW); 
    delay(3000); 
    digitalWrite(2, HIGH); 
    } 

    delay(7000); 
} 

Answer 1

它工作。

#include <Bridge.h> 
#include <HttpClient.h> 
String result = String(""); 
void setup() { 
    delay(5000); 
    pinMode(2, OUTPUT); 
    Bridge.begin(); 
    digitalWrite(2, HIGH); 

} 
boolean was_on = false; 
void loop() { 
    HttpClient client; 

    // PIN 2 
    client.get("http://ok.example.com/ajax/light"); 
    delay(500); 
    result = ""; 
    while (client.available()) { 
    char c = client.read(); 
    result = result + c; 
    } 


    if(result.indexOf("reboot") >= 0) { 
    digitalWrite(2, LOW); 
    delay(2000); 
    was_on = true; 
    } else { 
    if(was_on) { 
     digitalWrite(2, HIGH); 
     delay(1000); 
     was_on = false; 
    } 
    } 

    delay(3000); 
}