RGB LED崩溃我的arduino板?(Bug发现，只需要解释)

Question

所以我注意到我的arduino板在第一个60秒后崩溃(在Serial上暂停)，所以我决定随机注释出代码块，看看我是否能识别罪魁祸首。幸运的是，我做到了!

这是我的硬件设置:

Board: Arduino Mega
Pin 16,17: EC sensor 
Pin 14,15: pH sensor
Pin 2,3,4: RGB LED

我已经明确地确定了initRGB和displayGreen(), displayBlue()和displayRed()正在崩溃我的板。为什么?

代码:

#include <Adafruit_CC3000.h>
#include <ccspi.h>
#include <SPI.h>
#include <string.h>
#include "utility/debug.h"
#include <Base64.h>

int RGB_RED = 4;
int RGB_GREEN = 3;
int RGB_BLUE = 2;

String ecSensorString = "";
String phSensorString = "";
...
// Set this on if you want to supply an IP address directly
#define IP_NOT_DOMAIN   true
#define PORT            8080
// This corresponds to 192.168.1.117
#define IP_1 192
#define IP_2 168
#define IP_3 1
#define IP_4 117
#define WEBSITE      "blah.appspot.com"
#define WEBPAGE      "/api/points/new/"
// This is needed for http basic authorization
String serial="serial";
String token="token";
uint32_t ip;

void setup() {
  //initRGB();
  Serial.begin(9600);
  ecSensorString.reserve(30);
  phSensorString.reserve(30);
  initSensors();
  initWireless();
  Serial.println("Setup Complete");
}
void loop() {
  Serial.println("Loop begins");
  Serial.print("Free RAM: ");
  Serial.println(getFreeRam(), DEC);
  getEC();
  getPH();
  Serial.println("Sensors reading completed");
  createPoint(ecSensorString, phSensorString);
  Serial.println("createPoint completed");
  delay(10*1000);
  Serial.println("delay completed");
}
/*
void initRGB() {
  pinMode(RGB_RED, OUTPUT);
  pinMode(RGB_GREEN, OUTPUT);
  pinMode(RGB_BLUE, OUTPUT);
  //displayBlue();     
}

void displayBlue() {
  analogWrite(RGB_RED, 0);
  analogWrite(RGB_GREEN, 0);
  analogWrite(RGB_BLUE, 255);
}
void displayRed() {
  analogWrite(RGB_RED, 255);
  analogWrite(RGB_GREEN, 0);
  analogWrite(RGB_BLUE, 0);
}
void displayGreen() {
  analogWrite(RGB_RED, 0);
  analogWrite(RGB_GREEN, 255);
  analogWrite(RGB_BLUE, 0);
}
*/
void initWireless() {
  /* Initialise the module */
  if (!cc3000.begin()) {
    Serial.println(F("Couldn't begin()! Check your wiring?"));
    //displayRed();
    while(1);
  }
  Serial.println(F("Initialization Complete"));
  Serial.print(F("Attempting to connect to "));
  Serial.println(WLAN_SSID);
  if (!cc3000.connectToAP(WLAN_SSID, WLAN_PASS, WLAN_SECURITY)) {
    Serial.println(F("Failed!"));
    //displayRed();
    while(1);
  }
  Serial.println(F("Wireless Connected!"));
  /* Wait for DHCP to complete */
  while (!cc3000.checkDHCP()) {
    delay(100); // ToDo: Insert a DHCP timeout!
  }
  Serial.println(F("DHCP Requested!"));
  if (IP_NOT_DOMAIN) {
    ip = cc3000.IP2U32(IP_1, IP_2, IP_3, IP_4);
  } else {
    ip = 0;
    // Try looking up the website's IP address
    while (ip == 0) {
      if (! cc3000.getHostByName(WEBSITE, &ip)) {
        Serial.println(F("Couldn't resolve!"));
      }
      delay(500);
    }
  }
}

void initSensors() {
  Serial2.begin(38400);
  Serial3.begin(38400);
  // Tell the EC sensors to stop continuous mode
  Serial2.print("c,0r");
  // Tell the pH sensor to stop all readings
  Serial3.print("Er");
  // TODO: EC sensor's first reading is always empty, possibly delay?
}

void createPoint(String ec, String ph) {
  if (ec && ph) {
    postPointToServer("ec=" + ec + "&ph=" + ph);
  } else if (ec) {
    postPointToServer("ec=" + ec);
  } else if (ph) {
    postPointToServer("ph=" + ph);
  } else {
    Serial.println("createPoint: null");
  }
}

void postPointToServer(String data) {
  Serial.print("postPointToServer:");
  Serial.println(data);
  // Http Basic Authorization
  String auth_raw = serial + ":" + token;
  char auth_input[200];
  char auth_output[200];
  auth_raw.toCharArray(auth_input, auth_raw.length() + 1);
  base64_encode(auth_output, auth_input, auth_raw.length());
  Adafruit_CC3000_Client www = cc3000.connectTCP(ip, PORT);
  if (www.connected()) {
    www.fastrprint(F("POST ")); www.fastrprint(WEBPAGE); www.fastrprint(F(" HTTP/1.1rn"));
    www.fastrprint(F("Host: ")); www.fastrprint(WEBSITE); www.fastrprint(F("rn"));
    www.fastrprint(F("Authorization: Basic ")); www.fastrprint(auth_output); www.fastrprint(F("rn"));
    www.fastrprint(F("Content-Type: application/x-www-form-urlencoded")); www.fastrprint(F("rn"));
    char len_c[7];
    itoa(data.length(), len_c, 10);
    www.fastrprint(F("Content-Length: ")); www.fastrprint(len_c); www.fastrprint(F("rn"));
    // Extra empty line for post arguments
    www.fastrprint(F("rn"));
    char data_c[200];
    data.toCharArray(data_c, data.length() + 1);
    www.fastrprint(data_c); www.fastrprint(F("rn"));
    www.fastrprint(F("rn"));
    www.println();
    //displayGreen();
  } else {
    Serial.println(F("Connection failed"));
    //displayRed();
  }
  www.close();
}

void getEC() {
  ecSensorString = "";
  Serial2.print("rr");       // Read only 1
  char inchar;
  while (Serial2.available()) {
    inchar = (char)Serial2.read();
    if (inchar != 'r') {
      ecSensorString += inchar;
    }
  }
  Serial.print("getEC:");
  Serial.println(ecSensorString);
}

void getPH() {
  phSensorString = "";
  Serial3.print("Rr");       // Read only 1
  char inchar;
  while (Serial3.available()) {
    inchar = (char)Serial3.read();
    if (inchar != 'r') {
      phSensorString += inchar;
    }
  }
  Serial.print("getPH:");
  Serial.println(phSensorString);
}

Answer 1

如果您能提供原理图就更好了。事物是如何联系在一起的?

当你写"halt on Serial"时，你的意思是你最后看到的任何活动的标志是串口上的打印输出?您是否尝试在循环()内闪烁板载LED ?