Example of single tap and double tap detection for LSM6DSL in X-NUCLEO-IKS01A2

Dependencies:   X_NUCLEO_IKS01A2 mbed

Fork of SingleDoubleTap_IKS01A2 by ST Expansion SW Team

Single and Double Tap Demo Application based on sensor expansion board X-NUCLEO-IKS01A2

Main function is to show how to detect the single and double tap events using the sensor expansion board and send a notification using UART to a connected PC or Desktop and display it on terminal applications like TeraTerm.
After connection has been established:
- the user can try to tap the board and then view the notification using an hyper terminal. When the single tap is detected, the LED is switched on for a while.
- the user can press the user button to pass from the single tap detection to the double tap detection feature. The user can try to double tap the board and then view the notification using an hyper terminal. When the double tap is detected, the LED is switched on twice for a while.
- the user can press again the user button to disable the single and double tap detection feature.
- the user can press the user button to enable again the single tap detection feature and so on.

X_NUCLEO_IKS01A2/x_nucleo_iks01a2.cpp

Committer:
cparata
Date:
2016-11-23
Revision:
6:2380444e4c75
Parent:
2:21a191bd1998

File content as of revision 6:2380444e4c75:

/**
 ******************************************************************************
 * @file    x_nucleo_iks01a2.cpp
 * @author  AST / EST
 * @version V0.0.1
 * @date    9-August-2016
 * @brief   Implementation file for the X_NUCLEO_IKS01A2 singleton class
 ******************************************************************************
 * @attention
 *
 * <h2><center>&copy; COPYRIGHT(c) 2016 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 "x_nucleo_iks01a2.h"

/* Static variables ----------------------------------------------------------*/
X_NUCLEO_IKS01A2* X_NUCLEO_IKS01A2::_instance = NULL;


/* Methods -------------------------------------------------------------------*/
/**
 * @brief  Constructor
 */
X_NUCLEO_IKS01A2::X_NUCLEO_IKS01A2(DevI2C *ext_i2c) : dev_i2c(ext_i2c),
    ht_sensor(new HTS221Sensor(*dev_i2c)),
    magnetometer(new LSM303AGR_MAG_Sensor(*dev_i2c)),
    accelerometer(new LSM303AGR_ACC_Sensor(*dev_i2c)),
    pt_sensor(new LPS22HBSensor(*dev_i2c)),
    acc_gyro(new LSM6DSLSensor(*dev_i2c, IKS01A2_PIN_LSM6DSL_INT1, IKS01A2_PIN_LSM6DSL_INT2))
{ 
  ht_sensor->Init(NULL);
  magnetometer->Init(NULL);
  accelerometer->Init(NULL);
  pt_sensor->Init(NULL);
  acc_gyro->Init(NULL);
}

/**
 * @brief     Get singleton instance
 * @return    a pointer to the initialized singleton instance of class X_NUCLEO_IKS01A2.
 *            A return value of NULL indicates an out of memory situation.
 * @param[in] ext_i2c (optional) pointer to an instance of DevI2C to be used
 *            for communication on the expansion board. 
 *            Defaults to NULL.
 *            Taken into account only on the very first call of one of the 'Instance' functions.
 *            If not provided a new DevI2C will be created with standard
 *            configuration parameters.
 *            The used DevI2C object gets saved in instance variable dev_i2c.
 */
X_NUCLEO_IKS01A2* X_NUCLEO_IKS01A2::Instance(DevI2C *ext_i2c) {
    if(_instance == NULL) {
        if(ext_i2c == NULL)
            ext_i2c = new DevI2C(IKS01A2_PIN_I2C_SDA, IKS01A2_PIN_I2C_SCL);

        if(ext_i2c != NULL)
            _instance = new X_NUCLEO_IKS01A2(ext_i2c);
    }

    return _instance;
}

/**
 * @brief     Get singleton instance
 * @return    a pointer to the initialized singleton instance of class X_NUCLEO_IKS01A1.
 *            A return value of NULL indicates an out of memory situation.
 * @param[in] sda I2C data line pin.
 *            Taken into account only on the very first call of one of the 'Instance' functions.
 *            A new DevI2C will be created based on parameters 'sda' and 'scl'.
 *            The used DevI2C object gets saved in instance variable dev_i2c.
 * @param[in] scl I2C clock line pin.
 *            Taken into account only on the very first call of one of the 'Instance' functions.
 *            A new DevI2C will be created based on parameters 'sda' and 'scl'.
 *            The used DevI2C object gets saved in instance variable dev_i2c.
 */
X_NUCLEO_IKS01A2* X_NUCLEO_IKS01A2::Instance(PinName sda, PinName scl) {
    if(_instance == NULL) {
        DevI2C *ext_i2c = new DevI2C(sda, scl);

        if(ext_i2c != NULL)
            _instance = new X_NUCLEO_IKS01A2(ext_i2c);
    }

    return _instance;
}