c - Arduino yun 几个小时后停止工作

Question

我正在尝试使用 arduino yun 将机器生产的零件数量输出到谷歌电子表格。通过我的设置，我可以暂时将数据输出到电子表格。然而，一段时间后，云停止工作。我用来指示代码正在运行的红色 LED 灯熄灭了，我再也看不到端口列表中的 arduino。 32u4 芯片的复位导致 LED 重新亮起，表明代码正在运行，但开发板仍然没有出现在端口菜单中。

我已经在我们的车间对其进行了测试，它已经运行了 7-12 个小时，完全没有问题。只有当我们将它带到生产车间时，我们才开始遇到这些问题。有谁知道问题可能是什么？这是代码中最相关的部分:

#include <elapsedMillis.h>
#include <Process.h>
#include <Bridge.h>
#include "TimeLib.h"

// On Arduino:  0 - 1023 maps to 0 - 5 voltsf
#define VOLTAGE_MAX 5.0
#define VOLTAGE_MAXCOUNTS 1023.0

unsigned int buttonCount = 0;
float voltage = 0;
elapsedMillis timeSinceLastCycle = 0;
elapsedMillis transmitData = 0;
int pressFlag = 0;
Process date;
int hours, minutes, seconds;
int lastSecond = -1;
Process sendData;

String printDate() {

  // String currTime = String(hours) + ":" + String(minutes) + ":" + String(seconds);

  if (lastSecond != seconds) { // if a second has passed
    // print the time:
    if (hours <= 9) {
      Console.print("0");  // adjust for 0-9
    }
    Console.print(hours);
    Console.print(":");
    if (minutes <= 9) {
      Console.print("0");  // adjust for 0-9
    }
    Console.print(minutes);
    Console.print(":");
    if (seconds <= 9) {
      Console.print("0");  // adjust for 0-9
    }
    Console.println(seconds);

    // restart the date process:
    if (!date.running()) {
      date.begin("date");
      date.addParameter("+%T");
      date.run();
    }
  }

  //if there's a result from the date process, parse it:
  while (date.available() > 0) {
    // get the result of the date process (should be hh:mm:ss):
    String timeString = date.readString();

    // find the colons:
    int firstColon = timeString.indexOf(":");
    int secondColon = timeString.lastIndexOf(":");

    // get the substrings for hour, minute second:
    String hourString = timeString.substring(0, firstColon);
    String minString = timeString.substring(firstColon + 1, secondColon);
    String secString = timeString.substring(secondColon + 1);


    // convert to ints,saving the previous second:
    hours = hourString.toInt();
    minutes = minString.toInt();
    lastSecond = seconds;          // save to do a time comparison
    seconds = secString.toInt();
    String currTime = hourString + ":" + minString + ":" + String(seconds);
    return currTime;
  }
}

void checkVoltage() {

  int sensorValue = analogRead(A0);
  voltage = sensorValue * (VOLTAGE_MAX / VOLTAGE_MAXCOUNTS);

  Console.println(voltage);
  delay(50);
  if (voltage >= 4.9 && pressFlag == 0) {

    Console.println("Delaying");
    sensorValue = analogRead(A0);
    voltage = sensorValue * (VOLTAGE_MAX / VOLTAGE_MAXCOUNTS);

    if (pressFlag == 0 && voltage >= 4.9) {

      unsigned long int intCycleTime = timeSinceLastCycle;
      timeSinceLastCycle = 0;
      digitalWrite(LED_BUILTIN, LOW);   // turn the LED on (HIGH is the voltage level)

      printDate();
      String pressTime = printDate();

      Console.print("PressTime is ");
      Console.println(pressTime);

      buttonCount++;
      Console.println(buttonCount);

      pressFlag = 1;



      String part1 = "curl -X POST -H \"Content-Type: application/json\" -d '{\"value1\":\"";
      String timeString = pressTime;
      Console.print(timeString + " seconds");
      String part2 = "\",\"value2\":\"";
      String numParts = String(buttonCount);
      String part3 = "\",\"value3\":\"";
      String strCycleTime = String(intCycleTime / 1000); // + " seconds";
      String part4 = "\"}' https://maker.ifttt.com/trigger/arduino2Request/with/key/gL8YmxeaUChOMJvmwpdXp -k";
      //curl -X POST -H "Content-Type: application/json" -d '{"value1":"1","value2":"2","value3":"3"}' https://maker.ifttt.com/trigger/arduino2Request/with/key/gL8YmxeaUChOMJvmwpdXp

      String curlString = part1 + timeString + part2 + numParts + part3 + strCycleTime + part4;

      // The curl string sends data to oue excel spreadhsheet using the IFTTT web service

      sendData.runShellCommandAsynchronously(curlString);

      elapsedMillis breakTimer = 0;
      /*while(sendData.running()){

          if(breakTimer > 5*1000){
            break;
          }
        } */


      Console.print("Data Available: "); // A value of 32 indicates a successful transmission of data, 0 also works if run asynchronously.
      Console.println(sendData.available());

      digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)

    }

  }
  else if (voltage < 2.5) {
    pressFlag = 0;
  }

}

void setup() {

  Bridge.begin();
  Console.begin();
  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)

  // run an initial date process. Should return:
  // hh:mm:ss :
  if (!date.running()) {
    date.begin("date");
    date.addParameter("+%T");
    date.run();
  }
}

void loop() {

  checkVoltage();

  if ((timeSinceLastCycle > 300000) && (transmitData > 300000)) { // If 5 minutes have elapsed without a part being produced, output that the arduino is transmitting even if not part is available
    sendData.runShellCommand("curl -X POST -H \"Content-Type: application/json\" -d '{\"value1\":\"1\",\"value2\":\"Arduino Transmitting\"}' https://maker.ifttt.com/trigger/transmitData/with/key/gKRo-zSur5rj6rD5rviCaV2RHI5g56Dy0Vc0S_XJ-oO -k");
    transmitData = 0;
  }
}

更新:我向 checkVoltage 函数添加了一系列打印语句。上面的代码已更新以反射(reflect)这一点。我发现它在尝试使用 sendData.runShellCommandAsynchronously 时挂起。输出看起来像

1.58
1.54
5.00
Delaying
PressTime is n" -d 
3

尝试运行 ShellCommand 时网络连接中断是否会导致此问题？

Answer 1

所以按照user3629249的解决方案，这个问题似乎解决了。现在已经有数周的无错误运行时间。 user3629249，如果你想重新发布你的建议作为答案，我会接受。感谢 user3629249 和 Patrick Trentin 的帮助!

我的更新 ProcessDate 函数现在包含:

if(date.available() >0){
  while (date.available() > 0) {
  // get the result of the date process (should be hh:mm:ss):
  String timeString = date.readString();

  // find the colons:
  int firstColon = timeString.indexOf(":");
  int secondColon = timeString.lastIndexOf(":");

  // get the substrings for hour, minute second:
  String hourString = timeString.substring(0, firstColon);
  String minString = timeString.substring(firstColon + 1, secondColon);
  String secString = timeString.substring(secondColon + 1);


  // convert to ints,saving the previous second:
  lastSecond = seconds;          // save to do a time comparison
  lastMinute = minutes;
  lastHour = hours;
  hours = hourString.toInt();
  minutes = minString.toInt();
  seconds = secString.toInt();
  String currTime = hourString + ":" + minString + ":" + String(seconds);
  return currTime;
} 
else{
        String currTime = ""; // If there is no result from the date process, return nothing. Should not happen.
        return currTime;
      }
    }