proximity18  2.1.0.0
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Proximity 18 click

Proximity 18 Click is a compact add-on board that contains a close-range proximity sensing solution. This board features the VCNL3036X01, a high-resolution digital proximity sensor from Vishay Semiconductors. Besides the proximity sensor, the VCNL3036X01 also integrates a mux and a driver for three external LEDs, which are located near the chip on the board, photodiodes, amplifiers, and analog to digital converting circuits into a single chip by CMOS process. It allows absolute distance measurement, whatever the target color and reflectance, providing an accurate range of up to 50cm.

click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Oct 2022.
  • Type : I2C type

Software Support

We provide a library for the Proximity 18 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Proximity 18 Click driver.

Standard key functions :

Example key functions :

Example Description

This example demonstrates the use of Proximity 18 click board by reading and displaying the proximity data on the USB UART.

The demo application is composed of two sections :

Application Init

Initializes the driver and logger, and performs the click default configuration.

void application_init ( void )
{
log_cfg_t log_cfg;
proximity18_cfg_t proximity18_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
proximity18_cfg_setup( &proximity18_cfg );
PROXIMITY18_MAP_MIKROBUS( proximity18_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == proximity18_init( &proximity18, &proximity18_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( PROXIMITY18_ERROR == proximity18_default_cfg ( &proximity18 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Reads the proximity data from 3 sensors in a multiplex mode and displays it on the USB UART

approximately once per second. The higher the proximity value, the closer the detected object is.

void application_task ( void )
{
uint16_t ps1_data, ps2_data, ps3_data;
{
log_error ( &logger, " Start measurement." );
Delay_ms ( 5000 );
}
{
log_error ( &logger, " Wait for data ready." );
Delay_ms ( 5000 );
}
if ( PROXIMITY18_ERROR == proximity18_read_proximity ( &proximity18, &ps1_data, &ps2_data, &ps3_data ) )
{
log_error ( &logger, " Read proximity." );
Delay_ms ( 5000 );
}
else
{
log_printf ( &logger, " PS1 data: %u\r\n", ps1_data );
log_printf ( &logger, " PS2 data: %u\r\n", ps2_data );
log_printf ( &logger, " PS3 data: %u\r\n\n", ps3_data );
}
Delay_ms ( 1000 );
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.Proximity18

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.


proximity18_wait_for_data_ready
err_t proximity18_wait_for_data_ready(proximity18_t *ctx)
Proximity 18 wait for data ready function.
application_task
void application_task(void)
Definition: main.c:65
proximity18_cfg_t
Proximity 18 Click configuration object.
Definition: proximity18.h:265
PROXIMITY18_ERROR
@ PROXIMITY18_ERROR
Definition: proximity18.h:283
proximity18_start_measurement
err_t proximity18_start_measurement(proximity18_t *ctx)
Proximity 18 start measurement function.
proximity18_t
Proximity 18 Click context object.
Definition: proximity18.h:248
application_init
void application_init(void)
Definition: main.c:29
proximity18_read_proximity
err_t proximity18_read_proximity(proximity18_t *ctx, uint16_t *ps1_data, uint16_t *ps2_data, uint16_t *ps3_data)
Proximity 18 read proximity function.
proximity18_init
err_t proximity18_init(proximity18_t *ctx, proximity18_cfg_t *cfg)
Proximity 18 initialization function.
proximity18_cfg_setup
void proximity18_cfg_setup(proximity18_cfg_t *cfg)
Proximity 18 configuration object setup function.
proximity18_default_cfg
err_t proximity18_default_cfg(proximity18_t *ctx)
Proximity 18 default configuration function.
PROXIMITY18_MAP_MIKROBUS
#define PROXIMITY18_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: proximity18.h:235