Example of wake up detection for LSM6DSO in X-NUCLEO-IKS01A3
Dependencies: X_NUCLEO_IKS01A3
Wake up Demo Application with LSM6DSO based on sensor expansion board X-NUCLEO-IKS01A3
Main function is to show how to detect the wake up event 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 and then view the notification using an hyper terminal. When the wake up event is detected, the LED is switched on for a while.
- the user button can be used to enable/disable the wake up detection feature.
main.cpp@2:917662c6fc72, 2019-04-12 (annotated)
- Committer:
- cparata
- Date:
- Fri Apr 12 13:47:43 2019 +0000
- Revision:
- 2:917662c6fc72
- Parent:
- 0:4afec65463dd
- Child:
- 4:387ef72462e0
Update X-NUCLEO-IKS01A3 library
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
cparata | 0:4afec65463dd | 1 | /** |
cparata | 0:4afec65463dd | 2 | ****************************************************************************** |
cparata | 0:4afec65463dd | 3 | * @file main.cpp |
cparata | 0:4afec65463dd | 4 | * @author SRA |
cparata | 0:4afec65463dd | 5 | * @version V1.0.0 |
cparata | 0:4afec65463dd | 6 | * @date 5-March-2019 |
cparata | 0:4afec65463dd | 7 | * @brief Simple Example application for using the X_NUCLEO_IKS01A3 |
cparata | 0:4afec65463dd | 8 | * MEMS Inertial & Environmental Sensor Nucleo expansion board. |
cparata | 0:4afec65463dd | 9 | ****************************************************************************** |
cparata | 0:4afec65463dd | 10 | * @attention |
cparata | 0:4afec65463dd | 11 | * |
cparata | 0:4afec65463dd | 12 | * <h2><center>© COPYRIGHT(c) 2019 STMicroelectronics</center></h2> |
cparata | 0:4afec65463dd | 13 | * |
cparata | 0:4afec65463dd | 14 | * Redistribution and use in source and binary forms, with or without modification, |
cparata | 0:4afec65463dd | 15 | * are permitted provided that the following conditions are met: |
cparata | 0:4afec65463dd | 16 | * 1. Redistributions of source code must retain the above copyright notice, |
cparata | 0:4afec65463dd | 17 | * this list of conditions and the following disclaimer. |
cparata | 0:4afec65463dd | 18 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
cparata | 0:4afec65463dd | 19 | * this list of conditions and the following disclaimer in the documentation |
cparata | 0:4afec65463dd | 20 | * and/or other materials provided with the distribution. |
cparata | 0:4afec65463dd | 21 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
cparata | 0:4afec65463dd | 22 | * may be used to endorse or promote products derived from this software |
cparata | 0:4afec65463dd | 23 | * without specific prior written permission. |
cparata | 0:4afec65463dd | 24 | * |
cparata | 0:4afec65463dd | 25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
cparata | 0:4afec65463dd | 26 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
cparata | 0:4afec65463dd | 27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
cparata | 0:4afec65463dd | 28 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
cparata | 0:4afec65463dd | 29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
cparata | 0:4afec65463dd | 30 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
cparata | 0:4afec65463dd | 31 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
cparata | 0:4afec65463dd | 32 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
cparata | 0:4afec65463dd | 33 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
cparata | 0:4afec65463dd | 34 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
cparata | 0:4afec65463dd | 35 | * |
cparata | 0:4afec65463dd | 36 | ****************************************************************************** |
cparata | 0:4afec65463dd | 37 | */ |
cparata | 0:4afec65463dd | 38 | |
cparata | 0:4afec65463dd | 39 | /* Includes */ |
cparata | 0:4afec65463dd | 40 | #include "mbed.h" |
cparata | 0:4afec65463dd | 41 | #include "XNucleoIKS01A3.h" |
cparata | 0:4afec65463dd | 42 | |
cparata | 0:4afec65463dd | 43 | /* Instantiate the expansion board */ |
cparata | 0:4afec65463dd | 44 | static XNucleoIKS01A3 *mems_expansion_board = XNucleoIKS01A3::instance(D14, D15, D4, D5, A3, D6, A4); |
cparata | 0:4afec65463dd | 45 | |
cparata | 0:4afec65463dd | 46 | /* Retrieve the composing elements of the expansion board */ |
cparata | 0:4afec65463dd | 47 | static LSM6DSOSensor *acc_gyro = mems_expansion_board->acc_gyro; |
cparata | 0:4afec65463dd | 48 | |
cparata | 0:4afec65463dd | 49 | InterruptIn mybutton(USER_BUTTON); |
cparata | 0:4afec65463dd | 50 | DigitalOut myled(LED1); |
cparata | 0:4afec65463dd | 51 | |
cparata | 0:4afec65463dd | 52 | volatile int mems_event = 0; |
cparata | 0:4afec65463dd | 53 | volatile int toggle_wake_up_enable = 0; |
cparata | 0:4afec65463dd | 54 | static int wake_up_is_enabled = 1; |
cparata | 0:4afec65463dd | 55 | |
cparata | 0:4afec65463dd | 56 | void pressed_cb(); |
cparata | 0:4afec65463dd | 57 | void INT1_cb(); |
cparata | 0:4afec65463dd | 58 | |
cparata | 0:4afec65463dd | 59 | /* Simple main function */ |
cparata | 0:4afec65463dd | 60 | int main() { |
cparata | 0:4afec65463dd | 61 | /* Attach callback to User button press */ |
cparata | 0:4afec65463dd | 62 | mybutton.fall(&pressed_cb); |
cparata | 0:4afec65463dd | 63 | /* Attach callback to LSM6DSO INT1 */ |
cparata | 0:4afec65463dd | 64 | acc_gyro->attach_int1_irq(&INT1_cb); |
cparata | 0:4afec65463dd | 65 | |
cparata | 0:4afec65463dd | 66 | /* Enable LSM6DSO accelerometer */ |
cparata | 0:4afec65463dd | 67 | acc_gyro->enable_x(); |
cparata | 0:4afec65463dd | 68 | /* Enable Wake-Up Detection. */ |
cparata | 0:4afec65463dd | 69 | acc_gyro->enable_wake_up_detection(); |
cparata | 0:4afec65463dd | 70 | |
cparata | 0:4afec65463dd | 71 | printf("\r\n--- Starting new run ---\r\n"); |
cparata | 0:4afec65463dd | 72 | |
cparata | 0:4afec65463dd | 73 | while(1) { |
cparata | 0:4afec65463dd | 74 | if(toggle_wake_up_enable) { |
cparata | 0:4afec65463dd | 75 | toggle_wake_up_enable = 0; |
cparata | 0:4afec65463dd | 76 | if(wake_up_is_enabled == 0) { |
cparata | 0:4afec65463dd | 77 | acc_gyro->enable_wake_up_detection(); |
cparata | 0:4afec65463dd | 78 | wake_up_is_enabled = 1; |
cparata | 0:4afec65463dd | 79 | } else { |
cparata | 0:4afec65463dd | 80 | acc_gyro->disable_wake_up_detection(); |
cparata | 0:4afec65463dd | 81 | wake_up_is_enabled = 0; |
cparata | 0:4afec65463dd | 82 | } |
cparata | 0:4afec65463dd | 83 | } |
cparata | 0:4afec65463dd | 84 | |
cparata | 0:4afec65463dd | 85 | if (mems_event) { |
cparata | 0:4afec65463dd | 86 | mems_event = 0; |
cparata | 0:4afec65463dd | 87 | LSM6DSO_Event_Status_t status; |
cparata | 0:4afec65463dd | 88 | acc_gyro->get_event_status(&status); |
cparata | 0:4afec65463dd | 89 | if (status.WakeUpStatus) { |
cparata | 0:4afec65463dd | 90 | /* Led blinking. */ |
cparata | 0:4afec65463dd | 91 | myled = 1; |
cparata | 0:4afec65463dd | 92 | wait(0.2); |
cparata | 0:4afec65463dd | 93 | myled = 0; |
cparata | 0:4afec65463dd | 94 | |
cparata | 0:4afec65463dd | 95 | /* Output data. */ |
cparata | 0:4afec65463dd | 96 | printf("Wake Up Detected!\r\n"); |
cparata | 0:4afec65463dd | 97 | } |
cparata | 0:4afec65463dd | 98 | } |
cparata | 0:4afec65463dd | 99 | } |
cparata | 0:4afec65463dd | 100 | } |
cparata | 0:4afec65463dd | 101 | |
cparata | 0:4afec65463dd | 102 | void pressed_cb() { |
cparata | 0:4afec65463dd | 103 | toggle_wake_up_enable = 1; |
cparata | 0:4afec65463dd | 104 | } |
cparata | 0:4afec65463dd | 105 | |
cparata | 0:4afec65463dd | 106 | void INT1_cb() { |
cparata | 0:4afec65463dd | 107 | mems_event = 1; |
cparata | 0:4afec65463dd | 108 | } |