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RIOT/tests/driver_lps331ap/main.c 1.46 KB
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  /*
   * Copyright (C) 2014 Freie Universität Berlin
   *
   * 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 LPS331AP pressure sensor
   *
   * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
   *
   * @}
   */
  
  #ifndef TEST_LPS331AP_I2C
  #error "TEST_LPS331AP_I2C not defined"
  #endif
  #ifndef TEST_LPS331AP_ADDR
  #error "TEST_LPS331AP_ADDR not defined"
  #endif
  
  #include <stdio.h>
  
  #include "xtimer.h"
  #include "lps331ap.h"
  
  #define RATE        LPS331AP_RATE_7HZ
  #define SLEEP       (250 * 1000U)
  
  int main(void)
  {
      lps331ap_t dev;
      int temp, pres;
      int temp_abs, pres_abs;
  
      puts("LPS331AP pressure sensor test application\n");
      printf("Initializing LPS331AP sensor at I2C_%i... ", TEST_LPS331AP_I2C);
      if (lps331ap_init(&dev, TEST_LPS331AP_I2C, TEST_LPS331AP_ADDR, RATE) == 0) {
          puts("[OK]\n");
      }
      else {
          puts("[Failed]");
          return 1;
      }
  
      while (1) {
          pres = lps331ap_read_pres(&dev);
          temp = lps331ap_read_temp(&dev);
  
          pres_abs = pres / 1000;
          pres -= pres_abs * 1000;
          temp_abs = temp / 1000;
          temp -= temp_abs * 1000;
  
          printf("Pressure value: %2i.%03i bar - Temperature: %2i.%03i °C\n",
                 pres_abs, pres, temp_abs, temp);
  
          xtimer_usleep(SLEEP);
      }
  
      return 0;
  }