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mikroSDK Library

Proximity 10 click

Rating:

5

Author: MIKROE

Last Updated: 2019-08-20

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: Proximity

Downloaded: 2584 times

Not followed.

License: MIT license  

Proximity 10 Click is a versatile proximity detection device on a Click board. It can detect a foreign object distanced up to 200cm.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

Proximity 10 click

Proximity 10 click

Native view of the Proximity 10 click board.

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Proximity 10 click

Proximity 10 click

Front and back view of the Proximity 10 click board.

View full image

Library Description

This library allows user to measure proximity between object and sensor. Also the ALS, temperature and VDD measurement can be performed in the same time and on the same way. The entire control of the Proximity 10 Click board can be perfomed by using this library, by writing to the registers, reading from the registers, writing desired parameters, checking the response, interrupt status checking and sending a commands. For more details check documentation.

Key functions:

  • T_PROXIMITY10_RETVAL proximity10_readBytes( uint8_t regAddr, uint8_t *dataOut, uint8_t nBytes ) - This function reads the desired number od bytes from the registers..
  • T_PROXIMITY10_RETVAL proximity10_writeByte( uint8_t regAddr, uint8_t dataIn ) - This function writes a one byte data to the desired register.
  • T_PROXIMITY10_RETVAL proximity10_send_command( uint8_t _command ) - This function allows user to execute a desired command and checks the response.

Examples description

The application is composed of three sections :

  • System Initialization - Initializes peripherals and pins.
  • Application Initialization - Initializes I2C serial interface and performs a device wake up, reset and all necessary configurations. The device will wake up and performs a measurements every 10 milliseconds.
  • Application Task - (code snippet) - Reads the proximity PS1 data value and sends result to the uart terminal. If measured proximity value is greater than selected proximity threshold value, the interrupt will be generated and the message will be showed on the uart terminal. When interrupt is generated the Sound function will make an alarm sound with determined duration depending on the detected proximity value, how much is object away or close from the sensor.
void applicationTask()
{
    proximity10_readWord( _PROXIMITY10_PS1_DATA_REG, &proximity );
    
    WordToStr( proximity, text );
    mikrobus_logWrite( "** Proximity PS1 : ", _LOG_TEXT );
    mikrobus_logWrite( text, _LOG_LINE );
    
    int_status = proximity10_check_int_status( _PROXIMITY10_PS1_INT_FLAG, _PROXIMITY10_INT_CLEAR_DIS );
    
    if (int_status == _PROXIMITY10_PS1_INT_FLAG)
    {
        mikrobus_logWrite( "** Object is detected **", _LOG_LINE );
        
        alarm_dur = proximity / 100;
        alarm_dur = alarm_dur + 35;
        alarm_dur = (float)(alarm_dur * 0.30928);
        alarm_dur = 180 - alarm_dur;
        
        Sound_Play( 1400, alarm_dur );
        Delay_ms( 100 );
    }
    else
    {
        Delay_ms( 200 );
    }
    mikrobus_logWrite( "**************************************", _LOG_LINE );
}

Additional Functions :

  • checkResponse - Sends an error code message to the uart terminal if error code is detected in the response.

Other mikroE Libraries used in the example:

  • Conversions
  • I2C
  • UART
  • Sound

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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