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mikroSDK Library

LightRanger 3 click

Rating:

5

Author: MIKROE

Last Updated: 2018-07-25

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: Optical

Downloaded: 4878 times

Not followed.

License: MIT license  

Light Ranger 3 click is an accurate distance measurement Click board based on a ToF (Time of Flight) measurement principle.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

LightRanger 3 Click

LightRanger 3 Click

Native view of the LightRanger 3 click board.

View full image
LightRanger 3 Click

LightRanger 3 Click

Front and back view of the LightRanger 3 click board.

View full image

Library Description

The library initializes and defines the I2C bus driver and drivers that offer a choice for writing data in registers and reading data from registers.  The library includes functions for full initialization chip with the procedure is written following the instructions from the datasheet. The user has the functions available for softReset, read distance and confidence distance value, Then functions for go to standby mode, go to off mode, go to on mode and measurement mode.

Key functions:

  • uint8_t lightranger3_init() - Functions for initializes chip
  • uint8_t lightranger3_takeSingleMeasurement() - Functions for measurement
  • uint16_t lightranger3_getDistance() - Functions for reads distance

Example description

The application is composed of three sections:

  • System Initialization - Initializes I2C module and sets INT pin as INPUT
  • Application Initialization - Initializes driver init and configuration chip
  • Application Task - (code snippet) - Includes measurements, reads distance, and logs distance to USBUART for every 300 ms. Distance measurement at distances ranging from 100 mm to 2000 mm
void applicationTask()
{
 lightranger3_takeSingleMeasurement();

 Distance = lightranger3_getDistance();
 IntToStr(Distance,DistanceTxt);
 mikrobus_logWrite( "Distance =", _LOG_TEXT );
 mikrobus_logWrite( DistanceTxt, _LOG_TEXT );
 mikrobus_logWrite( " mm", _LOG_LINE );
 Delay_ms( 300 );
}

Other mikroE Libraries used in the example:

  • Configuration
  • I2C
  • UART

Additional notes and information

Depending on the development board you are using, you may need USB UART clickUSB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.

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