I am trying to store data from a BNO055 accelerometer onto an SD card. I have tried several different tests to make sure that the problem doesn't lie with the SD card, and it doesn't. When I run the code and look at the serial monitor I can see that the first set of data is stored onto the SD card but after that an initialization error appears.
Any ideas would be appreciated!
#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BNO055.h>
#include <utility/imumaths.h>
#include <SD.h>
#include <SPI.h>
#define BNO055_SAMPLERATE_DELAY_MS (100)
Adafruit_BNO055 bno = Adafruit_BNO055(55);
double id = .1;
/**************************************************************************/
/*
Displays some basic information on this sensor from the unified
sensor API sensor_t type (see Adafruit_Sensor for more information)
*/
/**************************************************************************/
void displaySensorDetails(void)
{
sensor_t sensor;
bno.getSensor(&sensor);
Serial.println("------------------------------------");
Serial.print ("Sensor: "); Serial.println(sensor.name);
Serial.print ("Driver Ver: "); Serial.println(sensor.version);
Serial.print ("Unique ID: "); Serial.println(sensor.sensor_id);
Serial.print ("Max Value: "); Serial.print(sensor.max_value); Serial.println(" xxx");
Serial.print ("Min Value: "); Serial.print(sensor.min_value); Serial.println(" xxx");
Serial.print ("Resolution: "); Serial.print(sensor.resolution); Serial.println(" xxx");
Serial.println("------------------------------------");
Serial.println("");
delay(500);
}
/**************************************************************************/
/*
Display some basic info about the sensor status
*/
/**************************************************************************/
void displaySensorStatus(void)
{
Serial.println("");
Serial.print("System Status: 0x");
Serial.println(system_status, HEX);
Serial.print("Self Test: 0x");
Serial.println(self_test_results, HEX);
Serial.print("System Error: 0x");
Serial.println(system_error, HEX);
Serial.println("");
delay(500);
}
/**************************************************************************/
/*
Display sensor calibration status
*/
/**************************************************************************/
void displayCalStatus(void)
{
/* Get the four calibration values (0..3) */
/* Any sensor data reporting 0 should be ignored, */
/* 3 means 'fully calibrated" */
uint8_t system, gyro, accel, mag;
system = gyro = accel = mag = 0;
bno.getCalibration(&system, &gyro, &accel, &mag);
/* The data should be ignored until the system calibration is > 0 */
Serial.print("\t");
if (!system)
{
Serial.print("! ");
}
/* Display the individual values */
Serial.print("Sys:");
Serial.print(system, DEC);
Serial.print(" G:");
Serial.print(gyro, DEC);
Serial.print(" A:");
Serial.print(accel, DEC);
Serial.print(" M:");
Serial.print(mag, DEC);
}
/**************************************************************************/
/*
Arduino setup function (automatically called at startup)
*/
/**************************************************************************/
void setup(void)
{
Serial.begin(9600);
pinMode(10, OUTPUT);
Serial.println("Orientation Sensor Test"); Serial.println("");
/* Initialise the sensor */
if(!bno.begin())
{
/* There was a problem detecting the BNO055 ... check your connections */
Serial.print("Ooops, no BNO055 detected ... Check your wiring or I2C ADDR!");
while(1);
}
delay(1000);
/* Display some basic information on this sensor */
displaySensorDetails();
/* Optional: Display current status */
displaySensorStatus();
bno.setExtCrystalUse(true);
}
/**************************************************************************/
/*
Arduino loop function, called once 'setup' is complete (your own code
should go here)
*/
/**************************************************************************/
void loop(void)
{
/* Get a new sensor event */
sensors_event_t event;
bno.getEvent(&event);
imu::Quaternion quaternion = bno.getQuat();
/* Display the floating point data */
Serial.print("X: ");
Serial.print(quaternion.x());
Serial.print(" Y: ");
Serial.print(quaternion.y());
Serial.print(" Z: ");
Serial.print(quaternion.z());
Serial.print(" Initializing SD card...");
if (!SD.begin(4))
{
Serial.println("initialization failed!");
return;
}
Serial.println("initialization done.");
String dataString = String(id) + "," + double(quaternion.x()) + "," + double(quaternion.y()) + "," + double(quaternion.z());
File dataFile = SD.open("Swing.txt", FILE_WRITE);
if(dataFile)
{
dataFile.println(dataString);
dataFile.close();
}
else
{
Serial.println("Could not acess file");
}
/* Optional: Display calibration status */
displayCalStatus();
/* Optional: Display sensor status (debug only) */
//displaySensorStatus();
/* New line for the next sample */
Serial.println("");
/* Wait the specified delay before requesting nex data */
delay(1000);
}
