Cosmic Pi 10DOF IMU + Temp/Humidity combined readout

gistfile1.txt

// HTU21D-F is on Arduino Due I2C Bus 2, followed the guidance on forum.arduino.cc/index.php?topic=216359.0 to make it work
//modifications to HTU21DF.h and .cpp not included in this file. Also commented out delay.h as it's AVR not ARM. 

#include <Adafruit_Sensor.h>

#include <Adafruit_L3GD20_U.h>
#include <Adafruit_BMP085_U.h>
#include <Adafruit_LSM303_U.h>
#include <Adafruit_10DOF.h>
#include <Adafruit_HTU21DF.h>


#include <Wire.h>


/* Assign a unique ID to the sensors */
Adafruit_10DOF                dof   = Adafruit_10DOF();
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_HTU21DF htu = Adafruit_HTU21DF();

/* Update this with the correct SLP for accurate altitude measurements */
float seaLevelPressure = SENSORS_PRESSURE_SEALEVELHPA;

/**************************************************************************/
/*!
    @brief  Initialises all the sensors used by this example
*/
/**************************************************************************/
void initSensors()
{
  if(!accel.begin())
  {
    /* There was a problem detecting the LSM303 ... 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 BMP180 ... check your connections */
    Serial.println("Ooops, no BMP180 detected ... Check your wiring!");
    while(1);
  }
    if (!htu.begin()) {
    Serial.println("Couldn't find HTU21DF sensor!");
    while (1);
  }
}

/**************************************************************************/
/*!

*/
/**************************************************************************/
void setup(void)
{
  Serial.begin(115200);
  Serial.println(F("Adafruit 10 DOF Pitch/Roll/Heading Example with Humidity")); Serial.println("");
  
  /* Initialise the sensors */
  initSensors();
}

/**************************************************************************/
/*!
    @brief  Constantly check the roll/pitch/heading/altitude/temperature
*/
/**************************************************************************/
void loop(void)
{
  sensors_event_t accel_event;
  sensors_event_t mag_event;
  sensors_event_t bmp_event;
  sensors_vec_t   orientation;

  /* Calculate pitch and roll from the raw accelerometer data */
  accel.getEvent(&accel_event);
  if (dof.accelGetOrientation(&accel_event, &orientation))
  {
    /* 'orientation' should have valid .roll and .pitch fields */
    Serial.println("Data dump from raw sensors");
    Serial.print(F("Roll: "));
    Serial.print(orientation.roll);
    Serial.print(F("; "));
    Serial.print(F("Pitch: "));
    Serial.print(orientation.pitch);
    Serial.println(F("; "));
    Serial.print("GravX:");
    Serial.println(accel_event.acceleration.x);
    Serial.print("Gravy:");
    Serial.println(accel_event.acceleration.y);
    Serial.print("Gravz:");
    Serial.println(accel_event.acceleration.z);
    
  }
  
  /* Calculate the heading using the magnetometer */
  mag.getEvent(&mag_event);
  if (dof.magGetOrientation(SENSOR_AXIS_Z, &mag_event, &orientation))
  {
    /* 'orientation' should have valid .heading data now */
    Serial.print(F("Heading: "));
    Serial.print(orientation.heading);
    Serial.println(F("; "));
    Serial.print("Magx:");
    Serial.println(mag_event.magnetic.x);
    Serial.print("Magy:");
    Serial.println(mag_event.magnetic.y);
    Serial.print("Magz:");
    Serial.println(mag_event.magnetic.z);
  }

  /* Calculate the altitude using the barometric pressure sensor */
  bmp.getEvent(&bmp_event);
  if (bmp_event.pressure)
  {
    /* Get ambient temperature in C */
    float temperature;
    bmp.getTemperature(&temperature);
    /* Convert atmospheric pressure, SLP and temp to altitude    */
    Serial.print(F("Alt: "));
    Serial.print(bmp.pressureToAltitude(seaLevelPressure,
                                        bmp_event.pressure,
                                        temperature)); 
    Serial.println(F(" m; "));
    /* Display the temperature */
    Serial.print(F("Temp1: "));
    Serial.print(temperature);
    Serial.println(F(" C"));

    Serial.print("Temp2: "); Serial.println(htu.readTemperature());
    Serial.print("Hum: "); Serial.println(htu.readHumidity());
  }
  
  Serial.println(F(""));
  delay(1000);
}