RocketDataLogger.ino

#include <SD.h>
#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_LSM303_U.h>
#include <Adafruit_BMP085_U.h>
#include <Adafruit_L3GD20_U.h>
#include <Adafruit_10DOF.h>

/* Assign a unique ID to the sensors */
Adafruit_LSM303_Accel_Unified accel = Adafruit_LSM303_Accel_Unified(30301);
Adafruit_LSM303_Mag_Unified   mag   = Adafruit_LSM303_Mag_Unified(30302);
Adafruit_BMP085_Unified       bmp   = Adafruit_BMP085_Unified(18001);
Adafruit_L3GD20_Unified       gyro  = Adafruit_L3GD20_Unified(20);

// On the Ethernet Shield, CS is pin 4. Note that even if it's not
// used as the CS pin, the hardware CS pin (10 on most Arduino boards,
// 53 on the Mega) must be left as an output or the SD library
// functions will not work.
const int chipSelect = 10;
int led = 13;

void setup()
{
  // Open serial communications and wait for port to open:
  //Serial.begin(9600);
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);
  
  /* Initialise the sensors */
  if(!accel.begin())
  {
    /* There was a problem detecting the ADXL345 ... check your connections */
    Serial.println(F("Ooops, no LSM303 detected ... Check your wiring!"));
    while(1);
  }
  if(!mag.begin())
  {
    /* There was a problem detecting the LSM303 ... check your connections */
    Serial.println("Ooops, no LSM303 detected ... Check your wiring!");
    while(1);
  }
  if(!bmp.begin())
  {
    /* There was a problem detecting the BMP085 ... check your connections */
    Serial.print("Ooops, no BMP085 detected ... Check your wiring or I2C ADDR!");
    while(1);
  }
  if(!gyro.begin())
  {
    /* There was a problem detecting the L3GD20 ... check your connections */
    Serial.print("Ooops, no L3GD20 detected ... Check your wiring or I2C ADDR!");
    while(1);
  }

  // make sure that the default chip select pin is set to
  // output, even if you don't use it:
  pinMode(10, OUTPUT);
  
  // see if the card is present and can be initialized:
  if (!SD.begin(chipSelect)) {
    im_fucked();
  }
  File dataFile = SD.open("datalog.txt", FILE_WRITE);
  dataFile.println("=== NEW EVENT ===");
  dataFile.close();
}

void loop()
{

  // 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) {
  
    /* Get a new sensor event */
    sensors_event_t event;
  
    accel.getEvent(&event);
    dataFile.print("{\"Milliseconds\":\""); dataFile.print(millis()); dataFile.print("\",");
    dataFile.print("\"Accelerometer X\":\""); dataFile.print(event.acceleration.x); dataFile.print("\",");
    dataFile.print("\"Accelerometer Y\":\""); dataFile.print(event.acceleration.y); dataFile.print("\",");
    dataFile.print("\"Accelerometer Z\":\""); dataFile.print(event.acceleration.z); dataFile.print("\",");
  
    mag.getEvent(&event);
    dataFile.print("\"Magnetic X\":\""); dataFile.print(event.magnetic.x); dataFile.print("\",");
    dataFile.print("\"Magnetic Y\":\""); dataFile.print(event.magnetic.y); dataFile.print("\",");
    dataFile.print("\"Magnetic Z\":\""); dataFile.print(event.magnetic.z); dataFile.print("\",");

    gyro.getEvent(&event);
    dataFile.print("\"Gyroscope X\":\""); dataFile.print(event.gyro.x); dataFile.print("\",");
    dataFile.print("\"Gyroscope Y\":\""); dataFile.print(event.gyro.y); dataFile.print("\",");
    dataFile.print("\"Gyroscope Z\":\""); dataFile.print(event.gyro.z); dataFile.print("\",");
  
    bmp.getEvent(&event);
    dataFile.print("\"Pressure\":\""); dataFile.print(event.pressure); dataFile.print("\",");
    float temperature;
    bmp.getTemperature(&temperature);
    dataFile.print("\"Temperature\":\""); dataFile.print(temperature); dataFile.println("\"}");
    
    dataFile.close();

  }
  // if the file isn't open, pop up an error:
  else {
    im_fucked();
  }
}

void im_fucked() {
  while(1) {
    digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
    delay(100);               // wait for a second
    digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
    delay(100);               // wait for a second
    
    digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
    delay(100);               // wait for a second
    digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
    delay(100);               // wait for a second
    
    digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
    delay(100);               // wait for a second
    digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
    delay(100);               // wait for a second
    
    delay(300);
  }
}