procyon.ino

//  ____  ____   __    ___  _  _  __   __ _
// (  _ \(  _ \ /  \  / __)( \/ )/  \ (  ( \
//  ) __/ )   /(  O )( (__  )  /(  O )/    /
// (__)  (__\_) \__/  \___)(__/  \__/ \_)__)
//
// Copyright (c) 2018 Luís Ferreira
//
//  MIT License
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

/** @file src.ino
 * Initial and core file for arduino
 */

#define PROCYON_DEBUG 1
#define PROCYON_ENABLE_SD 0
#define PROCYON_ENABLE_BMP085 0
#define PROCYON_ENABLE_GPS_NEO6M 1
#define PROCYON_LOCAL_PRESSURE 100600

//#include <Wire.h>

typedef unsigned long int ulong_t;

/// Millisecond precision timer
class Timer {
public:
  /// Constructor
  Timer() : _t(millis()) {}
  
  inline ulong_t elapsedMillis() { return millis() - _t; }
  void reset() { _t = millis(); }
  
private:
  ulong_t _t;
};

#if PROCYON_ENABLE_BMP085
#include <Adafruit_BMP085.h>

/// Global variables
Adafruit_BMP085 bmp;
#endif

#if PROCYON_ENABLE_GPS_NEO6M
#include <NMEAGPS.h>
#include <GPSport.h>

NMEAGPS  gps;
gps_fix fix;
#define gpsPort Serial
#else
#define DEBUG_PORT Serial
#endif

#if PROCYON_ENABLE_SD
#include <SD.h>

File logfile;
Timer file_asave;
String filepath;

/// File autosaver callback
void fileAutoSave() {
  logfile.close();
  logfile = SD.open(filepath, FILE_WRITE);
  file_asave.reset();
}
#endif

/** Setup function before main loop
 * @see loop()
 */
void setup() {
  //Start serial if debug mode on
#if PROCYON_DEBUG
  DEBUG_PORT.begin(9600);
  #if PROCYON_ENABLE_BMP085
    if (!bmp.begin()) {
      DEBUG_PORT.println("Could not find a valid BMP085 sensor, check wiring!");
      while(true);
    }
  #endif
#else
  #if PROCYON_ENABLE_BMP085
    bmp.begin();
  #endif
#endif
#if PROCYON_ENABLE_GPS_NEO6M
  while (!Serial) {}
  gpsPort.begin(9600);
#if PROCYON_DEBUG
  DEBUG_PORT.println("\nGPS started");
#endif
#endif
#if PROCYON_ENABLE_SD
  // Start timer
  file_asave = Timer();

  // Start SDCard
  SD.begin();

  // Get log filename
  uint16_t i = 0;
  while (SD.exists("log_" + i))
    i++;

  filepath = "log_" + i;
  logfile = SD.open(filepath, FILE_WRITE);
  file_asave.reset();
#endif
}

/** Main loop
 * @see setup()
 */
void loop() {
  String lastRead = String(millis());
#if PROCYON_ENABLE_BMP085
    lastRead += "\t" + bmp.readTemperature() \
    + "\t" + bmp.readPressure() \
    + "\t" + bmp.readAltitude(PROCYON_LOCAL_PRESSURE);
#endif
#if PROCYON_ENABLE_GPS_NEO6M
    while (gps.available( gpsPort ))
    {
      fix = gps.read();
      if (fix.valid.location)
        lastRead += "\t" + String(fix.latitude(), 6) + "\t" + String(fix.longitude(), 6);
      if (fix.valid.altitude)
        lastRead += "\t" + String(fix.altitude());
#if PROCYON_DEBUG
  DEBUG_PORT.println(lastRead);
#endif
    }
    
#endif

#if PROCYON_ENABLE_SD
  logfile.println(lastRead);

  //File autosaver
  if (file_asave.elapsedMillis() > 2500)
    fileAutoSave();
#endif
}