Mikroelektronika d.o.o.
SKU: MIKROE-5286Proximity 16 Click Board
Proximity 16 Click Board
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Key Features
- Fast and accurate multizone distance ranging sensor, fully integrated module, wide field of view, ranging output with either 4x4 or 8x8 separate zones, low-power mode with programmable interrupt, up to 400cm ranging, and more
- Based on the VL53L5CX - multi-zone Time-of-Flight sensor from STMicroelectronics
- Can be used for multizone and multi-object distance detection, content management, gesture recognition, and various consumer and industrial applications
- mikroBUS: I2C Interface
The Proximity 16 Click Board™ is a compact add-on board that contains a close-range proximity sensing solution. This board features the VL53L5CX, a Time-of-Flight (ToF) multizone ranging sensor from STMicroelectronics. The VL53L5CX integrates a SPAD array, physical infrared filters, and diffractive optical elements (DOE) to achieve the best-ranging performance in various ambient lighting conditions with different cover glass materials. It allows absolute distance measurement, whatever the target colour and reflectance, provides accurate ranging up to 400cm, and can work at fast speeds (60Hz). Also, multizone distance measurements are possible with either 4x4 or 8x8 separate zones with broad 63° diagonal software-configurable Field-of-View (FoV). This Click board™ is suitable for multizone and multi-object distance detection, content management, gesture recognition, and various consumer and industrial applications.
The Proximity 16 Click Board™ is supported by a mikroSDK compliant library, which includes functions that simplify software development. This Click board™ comes as a thoroughly tested product, ready to be used on a system equipped with the mikroBUS™ socket.
How Does The Proximity 16 Click Board™ Work?
The Proximity 16 Click Board™ as its foundation uses the VL53L5CX, an 8x8 multi-zone Time-of-Flight sensor with wide FoV for each zone from STMicroelectronics. The VL53L5CX offers multi-target detection and distance measurement in each zone up to 4 meters. It integrates a SPAD array, physical infrared filters, and diffractive optical elements to achieve the best-ranging performance in various ambient lighting conditions. Also, with ST's patented histogram algorithms, the VL53L5CX detects multiple objects within the FoV and ensures immunity to cover glass crosstalk beyond 60cm.
Using diffractive optical elements above the vertical cavity surface emitting laser (VCSEL) allows a square field-of-view of 45°x45° (63° diagonal) to be projected onto the scene, where the receiver lens focuses the light reflection onto a SPAD array. The VL53L5CX can range up to 8x8 zones at 15Hz for higher resolution or 4x4 zones at 60Hz for faster-ranging measurements.
The Proximity 16 Click Board™ communicates with MCU using the standard I2C 2-Wire interface to read data and configure settings, supporting Fast Mode Plus Mode up to 1MHz. Also, this Click board™ provides the ability to use I2C communication in Low-Power mode, which activates via the setting of the LP pin routed to the PWM pin on the mikroBUS™ socket. Besides, it provides an intelligent interrupt function that generates every time a ranging measurement is available, alongside an I2C Reset feature routed to the RST pin on the mikroBUS™ socket, which resets the sensor I2C communication only. Once the host reads the result, the interrupt is cleared, and the ranging sequence can repeat.
The Proximity 16 Click Board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used, as a reference, for further development.
SPECIFICATIONS
| Type | Proximity |
| Applications | Can be used for multizone and multi-object distance detection, content management, gesture recognition, and various consumer and industrial applications |
| On-board modules | VL53L5CX - multi-zone Time-of-Flight sensor from STMicroelectronics |
| Key Features | Fast and accurate multizone distance ranging sensor, fully integrated module, wide field of view, ranging output with either 4x4 or 8x8 separate zones, low-power mode with programmable interrupt, up to 400cm ranging, and more |
| Interface | I2C |
| Compatibility | mikroBUS |
| Click board size | S (28.6 x 25.4 mm) |
| Input Voltage | 3.3V |
PINOUT DIAGRAM
This table shows how the pinout of the Proximity 16 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
| Notes | Pin |  |
Pin | Notes | |||
|---|---|---|---|---|---|---|---|
| NC | 1 | AN | PWM | 16 | LP | Low Power I2C Enable | |
| I2C Interface Reset | RST | 2 | RST | INT | 15 | INT | Interrupt |
| NC | 3 | CS | RX | 14 | NC | ||
| NC | 4 | SCK | TX | 13 | NC | ||
| NC | 5 | MISO | SCL | 12 | SCL | I2C Clock | |
| NC | 6 | MOSI | SDA | 11 | SDA | I2C Data | |
| Power Supply | 3.3V | 7 | 3.3V | 5V | 10 | NC | |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
ONBOARD SETTINGS AND INDICATORS
| Label | Name | Default | Description |
|---|---|---|---|
| LD1 | PWR | - | Power LED Indicator |
PROXIMITY 16 CLICK ELECTRICAL SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | - | 3.3 | - | V |
| Operating Range | - | - | 4 | m |
| Ranging Frequency | - | - | 60 | Hz |
| Operating Temperature Range | -30 | +25 | +85 | °C |
Software Support
We provide a library for the Proximity 16 Click Board™ as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
The package can be downloaded/installed directly from NECTO Studio The package Manager (recommended), downloaded from our LibStock™ or found on MikroE Github account.
Library Description
This library contains API for the Proximity 16 Click Board™ driver.
Key functions
-
proximity16_get_int_pinThis function returns the INT pin logic state. -
proximity16_get_resolutionThis function gets the current resolution (4x4 or 8x8). -
proximity16_get_ranging_dataThis function gets the ranging data, using the selected output and the resolution.
Example Description
This example demonstrates the use of the Proximity 16 Click Board™ by reading and displaying 8x8 zone measurements on the USB UART.
void application_task ( void )
{
if ( !proximity16_get_int_pin ( &proximity16 ) )
{
proximity16_results_data_t results;
uint8_t resolution, map_side;
err_t error_flag = proximity16_get_resolution ( &proximity16, &resolution );
error_flag |= proximity16_get_ranging_data ( &proximity16, &results );
if ( PROXIMITY16_OK == error_flag )
{
map_side = ( PROXIMITY16_RESOLUTION_4X4 == resolution ) ? 4 : 8;
log_printf ( &logger, "rn %ux%u MAP (mm):rn", ( uint16_t ) map_side, ( uint16_t ) map_side );
for ( uint16_t cnt = 1; cnt <= resolution; cnt++ )
{
log_printf ( &logger, " %ut", results.distance_mm[ cnt - 1 ] );
if ( 0 == ( cnt % map_side ) )
{
log_printf ( &logger, "rn" );
}
}
log_printf ( &logger, " Silicon temperature : %d degCrn", ( int16_t ) results.silicon_temp_degc );
}
}
}
The complete application code and ready to use projects can be installed directly from NECTO Studio, The package Manager (recommended), downloaded from our LibStock™ or found on the MikroE GitHub account.
Other MikroE Libraries used in the example:
- MikroSDK.Board
- MikroSDK.Log
- Click.Proximity16
Additional Notes and Information
Depending on the development board you are using, you may need USB UART Click Board™, 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.
MIKROSDK
The Proximity 16 Click Board™ is supported with mikroSDK - MikroElektronika Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.
Proximity 16 Click Board
Frequently Asked Questions
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