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mikroSDK Library

Barometer 2 click

Rating:

5

Author: MIKROE

Last Updated: 2019-06-11

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: Pressure

Downloaded: 4215 times

Not followed.

License: MIT license  

Barometer 2 Click is a digital barometer on a Click board. Barometer 2 is equipped with the LPS35HW, an absolute piezoresistive pressure sensor with ceramic, water resistant package, manufactured using a proprietary technology.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

Barometer 2 click

Barometer 2 click

Native view of the Barometer 2 click board.

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Barometer 2 click

Barometer 2 click

Front and back view of the Barometer 2 click board.

View full image

Library Description

The library initializes and defines the I2C bus driver and drivers that offer a choice for writing data in register and reads data form register. The library includes function for read Pressure data in Bar/mBar/hPa/kPa/Torr or mmHg and Temperature data in Celsius/Kelvin or Farenhajt. The user also has the function for reset device and function for read interrupt state.

Key functions:

  • float barometer2_getPressure(uint8_t pressureIn) - Pressure data in ... (Bar, mBar, hPa, kPa, mmHg and Torr).
  • float barometer2_getTemperature(uint8_t tempIn) - Temperature data in ... (Celsius, Kelvin and Farenhajt).

Examples description

The application is composed of three sections :

  • System Initialization - Initilization I2C module and sets INT pin as INPUT
  • Application Initialization - Initializes driver init, test communication, software reset and configuration module for measurement
  • Application Task - Reads Pressure data in mBar and Temperature data in C. This data logs to USBUART every 1 sec.
  • note - Pressure data is available in the following units: mBar, Bar, kPa, Torr and mmHg - Temperature data is available in the following units: Celsius, Kelvin and Farenhajt
void applicationTask()
{
    float Temperature;
    float Pressure;
    char demoText[ 50 ];
     
    Temperature = barometer2_getTemperature(_BAROMETER2_TEMPERATURE_IN_CELSIUS);
    FloatToStr(Temperature, demoText);
    mikrobus_logWrite(" Temperature : ", _LOG_TEXT);
    mikrobus_logWrite(demoText, _LOG_LINE);

    Pressure = barometer2_getPressure(_BAROMETER2_PRESSURE_DATA_IN_mBar);
    FloatToStr(Pressure, demoText);
    mikrobus_logWrite(" Pressure : ", _LOG_TEXT);
    mikrobus_logWrite(demoText, _LOG_LINE);

    mikrobus_logWrite("--------------------------", _LOG_LINE);
    Delay_ms( 1000 );
}		

Other mikroE Libraries used in the example:

  • alarmOn - Generates an alarm sound for charger power ON.
  • alarmOff - Generates an alarm sound for charger power OFF.
  • alarmFault - Generates an alarm sound for fault condition.
  • writeLegend - Writes possible valid commands to the uart terminal.

Other mikroE Libraries used in the example:

  • I2C library
  • UART Library
  • Conversions 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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