X-NUCLEO-53L0A1 Proximity Sensor Expansion Board Firmware Package

Introduction

This firmware package includes Component Device Drivers and the Board Support Package for STMicroelectronics' X-NUCLEO-53L0A1 Proximity sensor expansion board based on VL53L0X.

Firmware Library

Class X_NUCLEO_53L0A1 is intended to represent the Proximity sensor expansion board with the same name.

The expansion board provides support for the following components:

on-board VL53L0X proximity sensor,
up to two additional VL53L0X Satellites,
on-board 4-digit display

It is intentionally implemented as a singleton because only one X-NUCLEO-VL53L0A1 may be deployed at a time in a HW component stack. In order to get the singleton instance you have to call class method `Instance()`, e.g.:

// Sensors expansion board singleton instance
static X_NUCLEO_53L0A1 *board = X_NUCLEO_53L0A1::Instance(device_i2c, A2, D8, D2);

Example Applications

The library and sample application code were tested against mbed revision 143, dated 26th May 2017.

Diff: x_nucleo_53l0a1.cpp

Revision:: 16:27d3d95c8593
Parent:: 14:8320b5ff96fa
Child:: 17:f8187a3fa36e

--- a/x_nucleo_53l0a1.cpp	Mon Aug 07 14:30:21 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,126 +0,0 @@
-/**
- ******************************************************************************
- * @file    x_nucleo_53L0A1.cpp
- * @author  IMG
- * @version V1.0.0
- * @date    28-November-2016
- * @brief   Implementation file for the X_NUCLEO_VL53L0A1 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 "x_nucleo_53l0a1.h"
-#include "vl53l0x_platform_log.h"
-
-/* Static variables ----------------------------------------------------------*/
-X_NUCLEO_53L0A1 *X_NUCLEO_53L0A1::_instance = NULL;
-
-X_NUCLEO_53L0A1 *X_NUCLEO_53L0A1::instance(DevI2C *ext_i2c)
-{
-    if (_instance == NULL)
-        _instance = new X_NUCLEO_53L0A1(ext_i2c);
-    else
-        VL53L0X_ErrLog("Failed to create X_NUCLEO_53L0A1 instance\n\r");
-    return _instance;
-}
-
-X_NUCLEO_53L0A1 *X_NUCLEO_53L0A1::instance(DevI2C *ext_i2c,
-        PinName gpio1_centre,
-        PinName gpio1_left, PinName gpio1_right)
-{
-    if (_instance == NULL)
-        _instance = new X_NUCLEO_53L0A1(ext_i2c, gpio1_centre, gpio1_left, gpio1_right);
-    else
-        VL53L0X_ErrLog("Failed to create X_NUCLEO_53L0A1 instance\n\r");
-    return _instance;
-}
-
-
-int X_NUCLEO_53L0A1::init_board()
-{
-    int status, n_dev = 0;
-
-								
-  
-					   
- 
-    sensor_centre->vl53l0x_off();
-    sensor_left->vl53l0x_off();
-    sensor_right->vl53l0x_off();
-    status = sensor_centre->init_sensor(NEW_SENSOR_CENTRE_ADDRESS);
-    if (status) {
-	
-        delete sensor_centre;
-        delete xshutdown_centre;
-        sensor_centre = NULL;
-        xshutdown_centre = NULL;
-        printf("Sensor centre not present\n\r");
-	
-    } else {
-	
-        printf("Sensor centre present\n\r");
-        n_dev++;
-    }
-    status = sensor_left->init_sensor(NEW_SENSOR_LEFT_ADDRESS);
-    if (status) {
-	
-        delete sensor_left;
-        delete xshutdown_left;
-        sensor_left = NULL;
-        xshutdown_left = NULL;
-        printf("Sensor left not present\n\r");
-	
-    } else {
-	
-        printf("Sensor left present\n\r");
-        n_dev++;
-    }
-
-    status = sensor_right->init_sensor(NEW_SENSOR_RIGHT_ADDRESS);
-    if (status) {
-	
-        delete sensor_right;
-        delete xshutdown_right;
-        sensor_right = NULL;
-        xshutdown_right = NULL;
-        printf("Sensor right not present\n\r");
-	
-    } else {
-	
-        printf("Sensor right present\n\r");
-        n_dev++;
-    }
-
-    if (n_dev == 0)
-        return 1;
-    else
-        return 0;
-}