Example of hello world for X-NUCLEO-IKS01A3

Dependencies:   X_NUCLEO_IKS01A3

Hello World Demo Application based on sensor expansion board X-NUCLEO-IKS01A3

Main function is to show how to get humidity, temperature, pressure, accelerometer, magnetomer and gyroscope data using the sensor expansion board and send them using UART to a connected PC or Desktop and display it on terminal applications like TeraTerm.

main.cpp

Committer:
cparata
Date:
4 months ago
Revision:
6:94151942f287
Parent:
5:7c883cce2bc4

File content as of revision 6:94151942f287:

/**
 ******************************************************************************
 * @file    main.cpp
 * @author  SRA
 * @version V1.0.0
 * @date    5-March-2019
 * @brief   Simple Example application for using the X_NUCLEO_IKS01A3
 *          MEMS Inertial & Environmental Sensor Nucleo expansion board.
 ******************************************************************************
 * @attention
 *
 * <h2><center>&copy; COPYRIGHT(c) 2019 STMicroelectronics</center></h2>
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *   1. Redistributions of source code must retain the above copyright notice,
 *      this list of conditions and the following disclaimer.
 *   2. Redistributions in binary form must reproduce the above copyright notice,
 *      this list of conditions and the following disclaimer in the documentation
 *      and/or other materials provided with the distribution.
 *   3. Neither the name of STMicroelectronics nor the names of its contributors
 *      may be used to endorse or promote products derived from this software
 *      without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 ******************************************************************************
*/

/* Includes */
#include "mbed.h"
#include "rtos.h"
#include "XNucleoIKS01A3.h"

/* Instantiate the expansion board */
static XNucleoIKS01A3 *mems_expansion_board = XNucleoIKS01A3::instance(D14, D15, D4, D5, A3, D6, A4);

/* Retrieve the composing elements of the expansion board */
static LIS2MDLSensor *magnetometer = mems_expansion_board->magnetometer;
static HTS221Sensor *hum_temp = mems_expansion_board->ht_sensor;
static LPS22HHSensor *press_temp = mems_expansion_board->pt_sensor;
static LSM6DSOSensor *acc_gyro = mems_expansion_board->acc_gyro;
static LIS2DW12Sensor *accelerometer = mems_expansion_board->accelerometer;
static STTS751Sensor *temp = mems_expansion_board->t_sensor;

/* Helper function for printing floats & doubles */
static char *print_double(char *str, double v, int decimalDigits = 2)
{
    int i = 1;
    int intPart, fractPart;
    int len;
    char *ptr;

    /* prepare decimal digits multiplicator */
    for (; decimalDigits != 0; i *= 10, decimalDigits--);

    /* calculate integer & fractinal parts */
    intPart = (int)v;
    fractPart = (int)((v - (double)(int)v) * i);

    /* fill in integer part */
    sprintf(str, "%i.", intPart);

    /* prepare fill in of fractional part */
    len = strlen(str);
    ptr = &str[len];

    /* fill in leading fractional zeros */
    for (i /= 10; i > 1; i /= 10, ptr++) {
        if (fractPart >= i) {
            break;
        }
        *ptr = '0';
    }

    /* fill in (rest of) fractional part */
    sprintf(ptr, "%i", fractPart);

    return str;
}

/* Simple main function */
int main()
{
    uint8_t id;
    float value1, value2;
    char buffer1[32], buffer2[32];
    int32_t axes[3];

    /* Enable all sensors */
    hum_temp->enable();
    press_temp->enable();
    temp->enable();
    magnetometer->enable();
    accelerometer->enable_x();
    acc_gyro->enable_x();
    acc_gyro->enable_g();

    printf("\r\n--- Starting new run ---\r\n");

    hum_temp->read_id(&id);
    printf("HTS221  humidity & temperature    = 0x%X\r\n", id);
    press_temp->read_id(&id);
    printf("LPS22HH  pressure & temperature   = 0x%X\r\n", id);
    temp->read_id(&id);
    printf("STTS751 temperature               = 0x%X\r\n", id);
    magnetometer->read_id(&id);
    printf("LIS2MDL magnetometer              = 0x%X\r\n", id);
    accelerometer->read_id(&id);
    printf("LIS2DW12 accelerometer            = 0x%X\r\n", id);
    acc_gyro->read_id(&id);
    printf("LSM6DSO accelerometer & gyroscope = 0x%X\r\n", id);

    while (1) {
        printf("\r\n");

        hum_temp->get_temperature(&value1);
        hum_temp->get_humidity(&value2);
        printf("HTS221: [temp] %7s C,   [hum] %s%%\r\n", print_double(buffer1, value1), print_double(buffer2, value2));

        press_temp->get_temperature(&value1);
        press_temp->get_pressure(&value2);
        printf("LPS22HH: [temp] %7s C, [press] %s mbar\r\n", print_double(buffer1, value1), print_double(buffer2, value2));

        temp->get_temperature(&value1);
        printf("STTS751: [temp] %7s C\r\n", print_double(buffer1, value1));

        printf("---\r\n");

        magnetometer->get_m_axes(axes);
        printf("LIS2MDL [mag/mgauss]:  %6d, %6d, %6d\r\n", axes[0], axes[1], axes[2]);

        accelerometer->get_x_axes(axes);
        printf("LIS2DW12 [acc/mg]:  %6d, %6d, %6d\r\n", axes[0], axes[1], axes[2]);

        acc_gyro->get_x_axes(axes);
        printf("LSM6DSO [acc/mg]:      %6d, %6d, %6d\r\n", axes[0], axes[1], axes[2]);

        acc_gyro->get_g_axes(axes);
        printf("LSM6DSO [gyro/mdps]:   %6d, %6d, %6d\r\n", axes[0], axes[1], axes[2]);

        ThisThread::sleep_for(1500);
    }
}