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: XNucleo53L0A1.cpp

Revision:: 18:2413acea538f
Parent:: 16:27d3d95c8593
Child:: 19:1727c86ac63b

--- a/XNucleo53L0A1.cpp	Tue Oct 10 08:48:41 2017 +0000
+++ b/XNucleo53L0A1.cpp	Fri Oct 13 15:32:03 2017 +0000
@@ -53,8 +53,8 @@
 }
 
 XNucleo53L0A1 *XNucleo53L0A1::instance(DevI2C *ext_i2c,
-        PinName gpio1_centre,
-        PinName gpio1_left, PinName gpio1_right)
+                                       PinName gpio1_centre,
+                                       PinName gpio1_left, PinName gpio1_right)
 {
     if (_instance == NULL)
         _instance = new XNucleo53L0A1(ext_i2c, gpio1_centre, gpio1_left, gpio1_right);
@@ -68,53 +68,53 @@
 {
     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++;
     }