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mikroSDK Library

Diff Press click

Rating:

5

Author: MikroElektronika Team

Last Updated: 2018-11-23

Category: Measurement

Downloaded: 180 times

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Diff Press Click is an accurate pressure sensor Click board capable of measuring differential pressure. This Click board utilizes a very precise differential pressure sensor from NXP, labeled as MPXV7007DP.

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mikroSDK Library Blog

Diff Press Click

Diff Press Click

Native view of the Diff Press Click board.

View full image
Diff Press Click

Diff Press Click

Front and back view of the Diff Press Click board.

View full image

Library Description

The library contains a function for setting a reference output voltage which can be 1030mV, 2046mv, 3070mV or 4096mV.

Key functions:

  • uint16_t diffpress_getAdcData( void ) - reads raw ADC data from device
  • float diffpress_getPressureDifference( void ) - calculates pressure difference from raw ADC data

Examples description

The application is composed of the three sections :

  • System Initialization - Initializes LOG and I2C
  • Application Initialization - Initializes I2C driver
  • Application Task - Logs pressure difference
void applicationTask( )
{
    pressureDifference = diffpress_getPressureDifference( );

    FloatToStr( pressureDifference, text );
    
    mikrobus_logWrite( "pressure difference : ", _LOG_TEXT );
    mikrobus_logWrite( text, _LOG_TEXT );
    mikrobus_logWrite( " kPa", _LOG_LINE );

    Delay_ms(100);
}

Other mikroE Libraries used in the example:

  • I2C
  • UART
  • Conversions

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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