Test an Adafruit single VL53L0X breakout board using the mbed LPC1768 and print distance measurement to PC
Dependencies: X_NUCLEO_53L0A1 mbed
Fork of HelloWorld_53L0A1 by
https://os.mbed.com/users/kbeck8/notebook/alternative-control-for-remote-control-vehicle/ has a more complex example using three LIDAR breakouts for gesture detection on the same I2C bus using the shutdown pin (solves the issue of them having the same I2C address). The driver has support for three, but an AND gate is required unless the driver is changed. DigitalOut pins turn shutdown on/off on each LIDAR.
Revision 11:5186cc367be0, committed 2017-09-07
- Comitter:
- 4180_1
- Date:
- Thu Sep 07 00:01:45 2017 +0000
- Parent:
- 10:891e10d3b4a6
- Commit message:
- ver 1.0
Changed in this revision
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
diff -r 891e10d3b4a6 -r 5186cc367be0 main.cpp --- a/main.cpp Tue Aug 22 14:42:10 2017 +0000 +++ b/main.cpp Thu Sep 07 00:01:45 2017 +0000 @@ -1,39 +1,39 @@ #include "mbed.h" #include "XNucleo53L0A1.h" #include <stdio.h> +Serial pc(USBTX,USBRX); +DigitalOut shdn(p26); +// This VL53L0X board test application performs a range measurement in polling mode +// Use 3.3(Vout) for Vin, p28 for SDA, p27 for SCL, P26 for shdn on mbed LPC1768 -/* This VL53L0X Expansion board test application performs a range measurement in polling mode - on the onboard embedded top sensor. */ - -#define VL53L0_I2C_SDA D14 -#define VL53L0_I2C_SCL D15 +//I2C sensor pins +#define VL53L0_I2C_SDA p28 +#define VL53L0_I2C_SCL p27 static XNucleo53L0A1 *board=NULL; - -/*=================================== Main ================================== -=============================================================================*/ int main() -{ - int status; - uint32_t distance; - +{ + int status; + uint32_t distance; DevI2C *device_i2c = new DevI2C(VL53L0_I2C_SDA, VL53L0_I2C_SCL); - /* creates the 53L0A1 expansion board singleton obj */ board = XNucleo53L0A1::instance(device_i2c, A2, D8, D2); - - /* init the 53L0A1 expansion board with default values */ + shdn = 0; //must reset sensor for an mbed reset to work + wait(0.1); + shdn = 1; + wait(0.1); + /* init the 53L0A1 board with default values */ status = board->init_board(); - if (status) { - printf("Failed to init board!\r\n"); - return 0; + while (status) { + pc.printf("Failed to init board! \r\n"); + status = board->init_board(); } - - while (1) { + //loop taking and printing distance + while (1) { status = board->sensor_centre->get_distance(&distance); if (status == VL53L0X_ERROR_NONE) { - printf("Distance : %ld\r\n", distance); + pc.printf("D=%ld mm\r\n", distance); } - } + } }