ST / Mbed 2 deprecated Pedometer_IKS01A2

Example of pedometer for LSM6DSL in X-NUCLEO-IKS01A2

Dependencies:   X_NUCLEO_IKS01A2 mbed

Fork of Pedometer_IKS01A2 by ST Expansion SW Team

Pedometer Demo Application based on sensor expansion board X-NUCLEO-IKS01A2

Main function is to show how to count steps 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 shake the board to simulate the steps and then view the notification using an hyper terminal. When a new step is detected, the LED is switched on for a while.
- the user button can be used to reset the step counter.

main.cpp@0:b189540a70e2, 2016-08-12 (annotated)

Committer:
cparata
Date:
Fri Aug 12 13:41:14 2016 +0000
Revision:
0:b189540a70e2
Child:
4:b9467a8f2bcc
First release of Pedometer for LSM6DSL in IKS01A2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cparata 0:b189540a70e2 1 /**
cparata 0:b189540a70e2 2 ******************************************************************************
cparata 0:b189540a70e2 3 * @file main.cpp
cparata 0:b189540a70e2 4 * @author AST / EST
cparata 0:b189540a70e2 5 * @version V0.0.1
cparata 0:b189540a70e2 6 * @date 9-August-2016
cparata 0:b189540a70e2 7 * @brief Simple Example application for using the X_NUCLEO_IKS01A2
cparata 0:b189540a70e2 8 * MEMS Inertial & Environmental Sensor Nucleo expansion board.
cparata 0:b189540a70e2 9 ******************************************************************************
cparata 0:b189540a70e2 10 * @attention
cparata 0:b189540a70e2 11 *
cparata 0:b189540a70e2 12 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
cparata 0:b189540a70e2 13 *
cparata 0:b189540a70e2 14 * Redistribution and use in source and binary forms, with or without modification,
cparata 0:b189540a70e2 15 * are permitted provided that the following conditions are met:
cparata 0:b189540a70e2 16 * 1. Redistributions of source code must retain the above copyright notice,
cparata 0:b189540a70e2 17 * this list of conditions and the following disclaimer.
cparata 0:b189540a70e2 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
cparata 0:b189540a70e2 19 * this list of conditions and the following disclaimer in the documentation
cparata 0:b189540a70e2 20 * and/or other materials provided with the distribution.
cparata 0:b189540a70e2 21 * 3. Neither the name of STMicroelectronics nor the names of its contributors
cparata 0:b189540a70e2 22 * may be used to endorse or promote products derived from this software
cparata 0:b189540a70e2 23 * without specific prior written permission.
cparata 0:b189540a70e2 24 *
cparata 0:b189540a70e2 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
cparata 0:b189540a70e2 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
cparata 0:b189540a70e2 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
cparata 0:b189540a70e2 28 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
cparata 0:b189540a70e2 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
cparata 0:b189540a70e2 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
cparata 0:b189540a70e2 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
cparata 0:b189540a70e2 32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
cparata 0:b189540a70e2 33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
cparata 0:b189540a70e2 34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
cparata 0:b189540a70e2 35 *
cparata 0:b189540a70e2 36 ******************************************************************************
cparata 0:b189540a70e2 37 */
cparata 0:b189540a70e2 38
cparata 0:b189540a70e2 39 /* Includes */
cparata 0:b189540a70e2 40 #include "mbed.h"
cparata 0:b189540a70e2 41 #include "x_nucleo_iks01a2.h"
cparata 0:b189540a70e2 42
cparata 0:b189540a70e2 43 /* Instantiate the expansion board */
cparata 0:b189540a70e2 44 static X_NUCLEO_IKS01A2 *mems_expansion_board = X_NUCLEO_IKS01A2::Instance(D14, D15);
cparata 0:b189540a70e2 45
cparata 0:b189540a70e2 46 /* Retrieve the composing elements of the expansion board */
cparata 0:b189540a70e2 47 static LSM6DSLSensor *acc_gyro = mems_expansion_board->acc_gyro;
cparata 0:b189540a70e2 48
cparata 0:b189540a70e2 49 InterruptIn lsm6dsl_int1(IKS01A2_PIN_LSM6DSL_INT1);
cparata 0:b189540a70e2 50 InterruptIn mybutton(USER_BUTTON);
cparata 0:b189540a70e2 51 DigitalOut myled(LED1);
cparata 0:b189540a70e2 52
cparata 0:b189540a70e2 53 volatile int step = 0;
cparata 0:b189540a70e2 54 volatile int step_count_reset_request = 0;
cparata 0:b189540a70e2 55 uint32_t previous_tick = 0;
cparata 0:b189540a70e2 56 uint32_t current_tick = 0;
cparata 0:b189540a70e2 57 uint16_t step_count = 0;
cparata 0:b189540a70e2 58
cparata 0:b189540a70e2 59 void pressed();
cparata 0:b189540a70e2 60 void step_cb();
cparata 0:b189540a70e2 61
cparata 0:b189540a70e2 62 /* Simple main function */
cparata 0:b189540a70e2 63 int main() {
cparata 0:b189540a70e2 64 /* Attach callback to User button press */
cparata 0:b189540a70e2 65 mybutton.fall(&pressed);
cparata 0:b189540a70e2 66 /* Attach callback to LSM6DSL INT1 */
cparata 0:b189540a70e2 67 lsm6dsl_int1.rise(&step_cb);
cparata 0:b189540a70e2 68
cparata 0:b189540a70e2 69 /* Enable LSM6DSL accelerometer */
cparata 0:b189540a70e2 70 acc_gyro->Enable_X();
cparata 0:b189540a70e2 71 /* Enable Pedometer. */
cparata 0:b189540a70e2 72 acc_gyro->Enable_Pedometer();
cparata 0:b189540a70e2 73
cparata 0:b189540a70e2 74 previous_tick = clock();
cparata 0:b189540a70e2 75
cparata 0:b189540a70e2 76 printf("\r\n--- Starting new run ---\r\n");
cparata 0:b189540a70e2 77
cparata 0:b189540a70e2 78 while(1) {
cparata 0:b189540a70e2 79 if (step) {
cparata 0:b189540a70e2 80 step = 0;
cparata 0:b189540a70e2 81 uint8_t status = 0;
cparata 0:b189540a70e2 82 acc_gyro->Get_Status_Pedometer(&status);
cparata 0:b189540a70e2 83 if (status) {
cparata 0:b189540a70e2 84 /* New step detected, so print the step counter */
cparata 0:b189540a70e2 85 acc_gyro->Get_Step_Counter(&step_count);
cparata 0:b189540a70e2 86 printf("Step counter: %d\r\n", step_count);
cparata 0:b189540a70e2 87
cparata 0:b189540a70e2 88 /* Led blinking. */
cparata 0:b189540a70e2 89 myled = 1;
cparata 0:b189540a70e2 90 wait(0.1);
cparata 0:b189540a70e2 91 myled = 0;
cparata 0:b189540a70e2 92 }
cparata 0:b189540a70e2 93 }
cparata 0:b189540a70e2 94
cparata 0:b189540a70e2 95 if(step_count_reset_request) {
cparata 0:b189540a70e2 96 step_count_reset_request = 0;
cparata 0:b189540a70e2 97 acc_gyro->Reset_Step_Counter();
cparata 0:b189540a70e2 98 }
cparata 0:b189540a70e2 99
cparata 0:b189540a70e2 100 /* Print the step counter in any case every 3s */
cparata 0:b189540a70e2 101 current_tick = clock();
cparata 0:b189540a70e2 102 if(((current_tick - previous_tick)/CLOCKS_PER_SEC) >= 3) {
cparata 0:b189540a70e2 103 acc_gyro->Get_Step_Counter(&step_count);
cparata 0:b189540a70e2 104 printf("Step counter: %d\r\n", step_count);
cparata 0:b189540a70e2 105 previous_tick = clock();
cparata 0:b189540a70e2 106 }
cparata 0:b189540a70e2 107 }
cparata 0:b189540a70e2 108 }
cparata 0:b189540a70e2 109
cparata 0:b189540a70e2 110 void pressed() {
cparata 0:b189540a70e2 111 step_count_reset_request = 1;
cparata 0:b189540a70e2 112 }
cparata 0:b189540a70e2 113
cparata 0:b189540a70e2 114 void step_cb() {
cparata 0:b189540a70e2 115 step = 1;
cparata 0:b189540a70e2 116 }