ST
Example of pedometer for LSM6DSO in X-NUCLEO-IKS01A3
Dependencies: X_NUCLEO_IKS01A3
Pedometer Demo Application with LSM6DSO based on sensor expansion board X-NUCLEO-IKS01A3
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.
Diff: main.cpp
- Revision:
- 5:6f7bb1c63cac
- Parent:
- 0:b7de156e1e7f
- Child:
- 6:6ea84663ee99
--- a/main.cpp Mon Jun 03 09:55:20 2019 +0000
+++ b/main.cpp Wed Jul 24 14:45:22 2019 +0000
@@ -4,7 +4,7 @@
* @author SRA
* @version V1.0.0
* @date 5-March-2019
- * @brief Simple Example application for using the X_NUCLEO_IKS01A3
+ * @brief Simple Example application for using the X_NUCLEO_IKS01A3
* MEMS Inertial & Environmental Sensor Nucleo expansion board.
******************************************************************************
* @attention
@@ -34,81 +34,84 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
-*/
-
+*/
+
/* Includes */
#include "mbed.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 LSM6DSOSensor *acc_gyro = mems_expansion_board->acc_gyro;
-
+
InterruptIn mybutton(USER_BUTTON);
DigitalOut myled(LED1);
-
+
volatile int mems_event = 0;
volatile int step_count_reset_request = 0;
uint32_t previous_tick = 0;
uint32_t current_tick = 0;
uint16_t step_count = 0;
-
+
/* User button callback. */
-void pressed_cb() {
- step_count_reset_request = 1;
+void pressed_cb()
+{
+ step_count_reset_request = 1;
}
-
+
/* Interrupt 1 callback. */
-void int1_cb() {
- mems_event = 1;
+void int1_cb()
+{
+ mems_event = 1;
}
-
+
/* Simple main function */
-int main() {
- /* Attach callback to User button press */
- mybutton.fall(&pressed_cb);
- /* Attach callback to LSM6DSO INT1 */
- acc_gyro->attach_int1_irq(&int1_cb);
-
- /* Enable LSM6DSO accelerometer */
- acc_gyro->enable_x();
- /* Enable Pedometer. */
- acc_gyro->enable_pedometer();
-
- previous_tick = clock();
-
- printf("\r\n--- Starting new run ---\r\n");
-
- while(1) {
- if (mems_event) {
- mems_event = 0;
- LSM6DSO_Event_Status_t status;
- acc_gyro->get_event_status(&status);
- if (status.StepStatus) {
- /* New step detected, so print the step counter */
- acc_gyro->get_step_counter(&step_count);
- printf("Step counter: %d\r\n", step_count);
-
- /* Led blinking. */
- myled = 1;
- wait(0.1);
- myled = 0;
- }
+int main()
+{
+ /* Attach callback to User button press */
+ mybutton.fall(&pressed_cb);
+ /* Attach callback to LSM6DSO INT1 */
+ acc_gyro->attach_int1_irq(&int1_cb);
+
+ /* Enable LSM6DSO accelerometer */
+ acc_gyro->enable_x();
+ /* Enable Pedometer. */
+ acc_gyro->enable_pedometer();
+
+ previous_tick = clock();
+
+ printf("\r\n--- Starting new run ---\r\n");
+
+ while (1) {
+ if (mems_event) {
+ mems_event = 0;
+ LSM6DSO_Event_Status_t status;
+ acc_gyro->get_event_status(&status);
+ if (status.StepStatus) {
+ /* New step detected, so print the step counter */
+ acc_gyro->get_step_counter(&step_count);
+ printf("Step counter: %d\r\n", step_count);
+
+ /* Led blinking. */
+ myled = 1;
+ wait(0.1);
+ myled = 0;
+ }
+ }
+
+ if (step_count_reset_request) {
+ step_count_reset_request = 0;
+ acc_gyro->reset_step_counter();
+ }
+
+ /* Print the step counter in any case every 3s */
+ current_tick = clock();
+ if (((current_tick - previous_tick) / CLOCKS_PER_SEC) >= 3) {
+ acc_gyro->get_step_counter(&step_count);
+ printf("Step counter: %d\r\n", step_count);
+ previous_tick = clock();
+ }
}
-
- if(step_count_reset_request) {
- step_count_reset_request = 0;
- acc_gyro->reset_step_counter();
- }
-
- /* Print the step counter in any case every 3s */
- current_tick = clock();
- if(((current_tick - previous_tick)/CLOCKS_PER_SEC) >= 3) {
- acc_gyro->get_step_counter(&step_count);
- printf("Step counter: %d\r\n", step_count);
- previous_tick = clock();
- }
- }
}