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:: 14:8320b5ff96fa
Parent:: 11:ceaa5a026412

--- a/x_nucleo_53l0a1.cpp	Thu Jun 15 13:33:35 2017 +0000
+++ b/x_nucleo_53l0a1.cpp	Mon Aug 07 14:30:21 2017 +0000
@@ -38,84 +38,89 @@
 
 /* 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 = NULL;
 
-X_NUCLEO_53L0A1* X_NUCLEO_53L0A1::Instance(DevI2C *ext_i2c)
+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;
+    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)
+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;
+    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::InitBoard()
-{	
-   int status, n_dev=0;
+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) {
 	
-   sensor_centre->VL53L0X_Off();
-   sensor_left->VL53L0X_Off();
-   sensor_right->VL53L0X_Off();
-   status=sensor_centre->InitSensor(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->InitSensor(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++;
-   }
+        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->InitSensor(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++;
-   }
+    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;
+    if (n_dev == 0)
+        return 1;
+    else
+        return 0;
 }