Arduino MEGA 2560 code compling fine on Windows, but not on Ubuntu

Projects Programming
1

Hi all, I'm having a odd problem with this code:

/*
  THE SPOTLIGHT
  "All your light is belong to us."
  Coded by (redacted)
  Worked on by (redacted)
*/

#include <SPI.h>
#include <SD.h>

int data[255];
int temparray[255];
int datacount = 0;
int avgcount = 0;
float halfavg = 0;
float avg = 0;

//pin definitions
const int SDR = 7;
const int SDY = 8;
const int SERREAD = 9;
const int SERERR = 10;
const int ANAREAD = 11;
const int ANAERR = 12;
const int light = A7;
const int temp = A8;

float counter = 0;

const int chipSelect = 4;

void setup() {
  Serial.begin(9600);
  String dataString = "";
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);

  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);
  digitalWrite(9, HIGH);
  digitalWrite(10, HIGH);
  digitalWrite(11, HIGH);
  digitalWrite(12, HIGH);
  delay(1000);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(10, LOW);
  digitalWrite(11, LOW);
  digitalWrite(12, LOW);

  digitalWrite(SERREAD, HIGH);
  digitalWrite(SDY, HIGH);
  Serial.print("Initializing SD card...");
  digitalWrite(SERREAD, LOW);
  digitalWrite(SDY, LOW);

  // see if the card is present and can be initialized:
  if (!SD.begin(chipSelect)) {
    Serial.println("Card failed, or not present");
    digitalWrite(SDR, HIGH);

    while (1) {
      // make a string for assembling the data to log:
      String dataString = "";
      delay(1);
      digitalWrite(ANAREAD, HIGH);
      int lightlvl = 1023 - analogRead(light);
      int templvl = 1023 - analogRead(temp);
      data[datacount] = lightlvl;
      temparray[datacount] = templvl;
      datacount = datacount + 1;
      float time = (millis() / 1000);
      digitalWrite(ANAREAD, LOW);
      if (datacount == 255) {
        datacount = 0;
        halfavg = 0;
        avg = 0;
        for (int i = 0; i < 255; i++) {
          halfavg = halfavg + data[i];
        }
        avg = halfavg / 255;
        dataString += String(time) + "," + String(avg) + "," + String(templvl);
   
        if (1 == 1) {
          digitalWrite(SERREAD, HIGH);
          Serial.println(dataString);
          digitalWrite(SERREAD, LOW);
        }
        // if the file isn't open, pop up an error:
        else {
          digitalWrite(SDR, HIGH);
          Serial.println("error opening datalog.txt");
          while (1);
        }
      }
    }
    Serial.println("card initialized.");
  }
}

void loop() {
  // make a string for assembling the data to log:
  String dataString = "";
  counter = (counter + 0.306);

  delay(1);
  digitalWrite(ANAREAD, HIGH);
  int lightlvl = 1020 - analogRead(light);
  int templvl = 1020 - analogRead(temp);
  data[datacount] = lightlvl;
  temparray[datacount] = templvl;
  datacount = datacount + 1;
  float time = (millis() / 1000);
  digitalWrite(ANAREAD, LOW);
  if (datacount == 255) {
    datacount = 0;
    halfavg = 0;
    avg = 0;
    for (int i = 0; i < 255; i++) {
      halfavg = halfavg + data[i];
    }
    avg = halfavg / 255;
    dataString += String(time) + "," + String(avg) + "," + String(templvl);
    // open the file. note that only one file can be open at a time,
    // so you have to close this one before opening another.

    File dataFile = SD.open("datalog.txt", FILE_WRITE);

    // if the file is available, write to it:
    if (dataFile) {

      digitalWrite(SDY, HIGH);
      dataFile.println(dataString);
      dataFile.close();
      digitalWrite(SDY, LOW);
      // print to the serial port too:
      digitalWrite(SERREAD, HIGH);
      Serial.println(dataString);
      digitalWrite(SERREAD, LOW);
    }
    // if the file isn't open, pop up an error:
    else {
      digitalWrite(SDR, HIGH);
      Serial.println("error opening datalog.txt");
      while (1);
    }
  }
}

It isn't compiling because of the following errors:

/usr/share/arduino/hardware/tools/avr/bin/avr-g++ -c -g -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections -mmcu=atmega2560 -DF_CPU=16000000L -MMD -DUSB_VID=null -DUSB_PID=null -DARDUINO=105 -D__PROG_TYPES_COMPAT__ -I/usr/share/arduino/hardware/arduino/cores/arduino -I/usr/share/arduino/hardware/arduino/variants/mega -I/usr/share/arduino/libraries/SPI -I/usr/share/arduino/libraries/SD /tmp/build3121876235550390916.tmp/Dataloggerv2.cpp -o /tmp/build3121876235550390916.tmp/Dataloggerv2.cpp.o 
In file included from /usr/share/arduino/libraries/SD/SD.h:20:0,
                 from Dataloggerv2.ino:10:
/usr/share/arduino/libraries/SD/utility/SdFat.h:289:25: warning: ‘prog_char’ is deprecated [-Wdeprecated-declarations]
   void write_P(PGM_P str);
                         ^
/usr/share/arduino/libraries/SD/utility/SdFat.h:290:27: warning: ‘prog_char’ is deprecated [-Wdeprecated-declarations]
   void writeln_P(PGM_P str);
                           ^
In file included from /usr/share/arduino/libraries/SD/SD.h:21:0,
                 from Dataloggerv2.ino:10:
/usr/share/arduino/libraries/SD/utility/SdFatUtil.h:58:45: warning: ‘prog_char’ is deprecated [-Wdeprecated-declarations]
 static NOINLINE void SerialPrint_P(PGM_P str) {
                                             ^
/usr/share/arduino/libraries/SD/utility/SdFatUtil.h:67:47: warning: ‘prog_char’ is deprecated [-Wdeprecated-declarations]
 static NOINLINE void SerialPrintln_P(PGM_P str) {
                                               ^
Dataloggerv2.ino: In function ‘void setup()’:
Dataloggerv2.ino:89:36: error: invalid operands of types ‘float’ and ‘const char [2]’ to binary ‘operator+’
Dataloggerv2.ino: In function ‘void loop()’:
Dataloggerv2.ino:130:36: error: call of overloaded ‘String(float&)’ is ambiguous
In file included from /usr/share/arduino/hardware/arduino/cores/arduino/Arduino.h:192:0,
                 from Dataloggerv2.ino:8:
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:70:11: note: candidate: String::String(long unsigned int, unsigned char)
  explicit String(unsigned long, unsigned char base=10);
           ^
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:69:11: note: candidate: String::String(long int, unsigned char)
  explicit String(long, unsigned char base=10);
           ^
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:68:11: note: candidate: String::String(unsigned int, unsigned char)
  explicit String(unsigned int, unsigned char base=10);
           ^
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:67:11: note: candidate: String::String(int, unsigned char)
  explicit String(int, unsigned char base=10);
           ^
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:66:11: note: candidate: String::String(unsigned char, unsigned char)
  explicit String(unsigned char, unsigned char base=10);
           ^
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:65:11: note: candidate: String::String(char)
  explicit String(char c);
           ^
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:60:2: note: candidate: String::String(const String&)
  String(const String &str);
  ^
Dataloggerv2.ino:130:56: error: call of overloaded ‘String(float&)’ is ambiguous
In file included from /usr/share/arduino/hardware/arduino/cores/arduino/Arduino.h:192:0,
                 from Dataloggerv2.ino:8:
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:70:11: note: candidate: String::String(long unsigned int, unsigned char)
  explicit String(unsigned long, unsigned char base=10);
           ^
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:69:11: note: candidate: String::String(long int, unsigned char)
  explicit String(long, unsigned char base=10);
           ^
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:68:11: note: candidate: String::String(unsigned int, unsigned char)
  explicit String(unsigned int, unsigned char base=10);
           ^
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:67:11: note: candidate: String::String(int, unsigned char)
  explicit String(int, unsigned char base=10);
           ^
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:66:11: note: candidate: String::String(unsigned char, unsigned char)
  explicit String(unsigned char, unsigned char base=10);
           ^
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:65:11: note: candidate: String::String(char)
  explicit String(char c);
           ^
/usr/share/arduino/hardware/arduino/cores/arduino/WString.h:60:2: note: candidate: String::String(const String&)
  String(const String &str);
  ^

Please help, i'm trying to condense some of the stuff like the millis functions, etc.

2

You're using an extremely outdated version of the Arduino IDE. Please uninstall it and then download and install the latest version of the Arduino IDE downloaded from:

Note that when you install the Arduino IDE from a package manager (e.g. apt-get install arduino), you get a very outdated and/or modified version of the Arduino IDE. For this reason, it is recommended to always download the official Arduino IDE from this website.

3

I didnt realize that. Thanks.

4

You're welcome. I'm glad if I was able to be of assistance. Enjoy!
Per