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RIOT/tests/driver_bmp180/main.c 2.72 KB
a752c7ab   elopes   add first test an...
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  /*
   * Copyright (C) 2016 Inria
   *
   * This file is subject to the terms and conditions of the GNU Lesser
   * General Public License v2.1. See the file LICENSE in the top level
   * directory for more details.
   */
  
  /**
   * @ingroup tests
   * @{
   *
   * @file
   * @brief       Test application for the BMP180 pressure and temperature sensor
   *
   * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
   *
   * @}
   */
  
  #include <stdio.h>
  #include <inttypes.h>
  
  #include "bmp180.h"
  #include "bmp180_params.h"
  #include "xtimer.h"
  #include "board.h"
  
  int main(void)
  {
      bmp180_t dev;
      int result;
  
      puts("BMP180 test application\n");
  
      printf("+------------Initializing------------+\n");
      result = bmp180_init(&dev, &bmp180_params[0]);
      if (result == -BMP180_ERR_NOI2C) {
          puts("[Error] The given i2c is not enabled");
          return 1;
      }
      else if (result == -BMP180_ERR_NODEV) {
          puts("[Error] The sensor did not answer correctly on the given address");
          return 1;
      }
      else if (result == -BMP180_ERR_NOCAL) {
          puts("[Error] Cannot read the sensor calibration values");
          return 1;
      }
      else {
          puts("Initialization successful\n");
      }
  
      printf("+------------Calibration------------+\n");
      printf("AC1: %i\n", dev.calibration.ac1);
      printf("AC2: %i\n", dev.calibration.ac2);
      printf("AC3: %i\n", dev.calibration.ac3);
      printf("AC4: %i\n", dev.calibration.ac4);
      printf("AC5: %i\n", dev.calibration.ac5);
      printf("AC6: %i\n", dev.calibration.ac6);
      printf("B1: %i\n", dev.calibration.b1);
      printf("B2: %i\n", dev.calibration.b2);
      printf("MB: %i\n", dev.calibration.mb);
      printf("MC: %i\n", dev.calibration.mc);
      printf("MD: %i\n", dev.calibration.md);
      printf("\n+--------Starting Measurements--------+\n");
      while (1) {
          /* Get temperature in deci degrees celsius */
          int16_t temperature = bmp180_read_temperature(&dev);
  
          /* Get pressure in Pa */
          uint32_t pressure = bmp180_read_pressure(&dev);
  
          /* Get pressure at sealevel in Pa */
          uint32_t pressure_0 = bmp180_sealevel_pressure(&dev, (int16_t)TEST_ALTITUDE);
  
          /* Get altitude in meters */
          int16_t altitude = bmp180_altitude(&dev, pressure_0);
  
          printf("Temperature [°C]: %d.%d\n"
                 "Pressure [hPa]: %lu.%d\n"
                 "Pressure at see level [hPa]: %lu.%d\n"
                "Altitude [m]: %i\n"
                 "\n+-------------------------------------+\n",
                 (int)(temperature / 10), (int)(temperature % 10),
                 (unsigned long)pressure / 100, (int)(pressure % 100),
                 (unsigned long)pressure_0 / 100, (int)(pressure_0 % 100),
                 (int)altitude);
  
          xtimer_sleep(2);
      }
  
      return 0;
  }