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mikroSDK Library

IR reflect Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.16

mikroSDK Library: 2.0.0.0

Category: Optical

Downloaded: 255 times

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License: MIT license  

IR reflect Click carries a GP2S700HCP reflective photointerrupter and an onboard potentiometer. On this type of photointerrupter the infrared emitter and receiver are facing the same direction.

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  • mikroSDK Library 1.0.0.0
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IR reflect Click

IR reflect Click carries a GP2S700HCP reflective photointerrupter and an onboard potentiometer. On this type of photointerrupter the infrared emitter and receiver are facing the same direction.

irreflect_click.png

Click Product page


Click library

  • Author : MikroE Team
  • Date : Dec 2019.
  • Type : GPIO type

Software Support

We provide a library for the IrReflect 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for IrReflect Click driver.

Standard key functions :

  • Config Object Initialization function.

    void irreflect_cfg_setup ( irreflect_cfg_t *cfg );

  • Initialization function.

    IRREFLECT_RETVAL irreflect_init ( irreflect_t ctx, irreflect_cfg_t cfg );

  • Click Default Configuration function.

    void irreflect_default_cfg ( irreflect_t *ctx );

Example key functions :

  • Function detecting interrupt states of IR reflection

    uint8_t irreflect_reflect_status ( irreflect_t *ctx );

  • Function detecting states of analog pin of IR reflection

    uint8_t irreflect_analog_status ( irreflect_t *ctx );

Examples Description

Example demonstrates the use of IR Reflect Click board.

The demo application is composed of two sections :

Application Init

Initialization driver enables - Start write log.


void application_init ( void )
{
    log_cfg_t log_cfg;
    irreflect_cfg_t cfg;

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info(&logger, "---- Application ----\n");

    //  Click initialization.
    irreflect_cfg_setup( &cfg );
    IRREFLECT_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    irreflect_init( &irreflect, &cfg );

    ir_state = 0;
    ir_state_old = 0;
    counter = 1;
}

Application Task

This is a example which demonstrates the use of IR Reflect Click board. On this type of photointerrupter the infrared emitter and receiver are facing the same direction, the infrared beam from the emitter gets bounced back to the receiver when an object is placed within the detecting range of the sensor ( optimal range is 3mm ). These sensors are used to detect an object's presence or motion, such as a piece of paper passing through a printer and counting when sensor is triggered. Results are being sent to the Usart Terminal where you can track their changes. Data logs on usb uart when the sensor is triggered.


void application_task ( void )
{
    //  Task implementation.

    ir_state = irreflect_reflect_status( &irreflect );

    if ( ir_state_old != ir_state )
    {
        if ( ir_state )
        {
            log_printf( &logger, "  Counter = %u\n", counter);
            counter++;
        }
        ir_state_old = ir_state;
    }
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.IrReflect

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. 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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