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mikroSDK Library

Motion 2 click

Rating:

5

Author: MIKROE

Last Updated: 2020-04-03

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: Motion

Downloaded: 3136 times

Not followed.

License: MIT license  

Motion 2 Click is a based on EKMC1607112, PIR motion sensor from Panasonic Corporation that's used as human motion detector. Also it is featured with TLP241A photorelay from Toshiba that is used to provide a reinforced galvanic isolation for the external signals used to drive some external high power electronic equipment when motion is detected.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

Motion 2 Click

Motion 2 Click

Native view of the Motion 2 Click board.

View full image
Motion 2 Click

Motion 2 Click

Front and back view of the Motion 2 Click board.

View full image

Library Description

The library has a function to activate the motion sensor and functions to check Movement detection in the vicinity of the sensor.

Key functions:

  • void motion2_active ( uint8_t status ) - Functions for active motion sensors
  • uint8_t motion2_detect_state ( void ) - Gets detection state

Examples description

The application is composed of three sections :

  • System Initialization - Initializes all necessary GPIO pins
  • Application Initialization - Initializes the GPIO driver and activates the motion sensor
  • Application Task - Checks if an object is detected. Prints a message about the object detection and whether the sensor has stabilized after object detection.
  • Note: The sensor needs a maximum of 30s to stabilize. See the sensor technical documentation for more information.
void application_task ( )
{
    uint8_t motion_state;
    
    motion_state = motion2_detect_state( );
    
    if ( ( motion_detect_flag == 0 ) &&
         ( motion_state == MOTION2_DETECT_OBJECT ) )
    {
        mikrobus_logWrite( ">>> Object is detected...", _LOG_LINE );
        motion_detect_flag = 1;
        Delay_ms( 500 );
    }
    
    if ( ( motion_detect_flag == 1 ) && 
         ( motion_state != MOTION2_DETECT_OBJECT ) )
    {
        mikrobus_logWrite( ">>> Sensor has stabilized..", _LOG_LINE );
        mikrobus_logWrite( ">>> Ready for new detection...", _LOG_LINE );
        mikrobus_logWrite( ">>> --------------------------", _LOG_LINE );
        motion_detect_flag = 0;
    }
}

Other mikroE Libraries used in the example:

  • UART Library

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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