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mikroSDK Library

LightRanger 2 click

Rating:

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Author: MIKROE

Last Updated: 2019-07-31

Package Version: 1.0.0.1

mikroSDK Library: 1.0.0.0

Category: Optical

Downloaded: 4751 times

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License: MIT license  

LightRanger 2 click carries VL53L0X IC from STMicroelectronics, the word’s smallest Time-of-Flight ranging and gesture detector sensor. The click is designed to run on either 3.3V or 5V power supply. LightRanger 2 click communicates with the target microcontroller over I2C interface and the following pins on the mikroBUS line: RST, INT.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

LightRanger 2 click

LightRanger 2 click

Front and back view of the LightRanger 2 click board

View full image

Library Description

The library covers all the necessary functions to control LightRanger 2 Click board. A library performs the communication with the device via I2C driver.

Key functions:

  • void lightranger2_writeByte( uint8_t regAddress, uint8_t writeData ) - Generic write 8-bit data function.
  • LIGHTRANGER2_STATUS_T lightranger2_defaultConfig() - Set default configuration function.
  • uint16_t lightranger2_getRangeContinuous() - Get a range measurement ( continuous mode ) function.

The application is composed of the three sections :

  • System Initialization - Initializes I2C, GPIO and LOG structures, set INT pin as input and CS pin as output and start to write log.
  • Application Initialization - Initialization driver enable's - I2C, enable Vl6180X sensor, hardware reset and sets default configuration of Vl6180X, also write log.
  • Application Task - This is an example which demonstrates the use of LightRanger 2 Click board. Measures the distance of the object from the sensor. Results are being sent to the Usart Terminal where you can track their changes. All data logs on usb uart for approximately every 1 sec when the data value changes.
void applicationTask()
{
    lightranger2_startContinuous( 0 );
    Delay_10ms();

    distance = lightranger2_getRangeContinuous();
    Delay_10ms();

    if ( distance )
    {
        mikrobus_logWrite( " Distance: ", _LOG_TEXT );
        WordToStr( distance, logText );
        ltrim( logText );
        mikrobus_logWrite( logText, _LOG_TEXT );
        mikrobus_logWrite( " mm", _LOG_LINE );
        mikrobus_logWrite( "---------------------", _LOG_LINE );
        Delay_1sec();
    }
}

Other mikroE Libraries used in the example:

  • I2C
  • UART
  • Conversion

Additional notes and informations

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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