pressure2  2.0.0.0
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Pressure 2 Click

Pressure 2 Click carries MS5803, a high resolution MEMS pressure sensor that is both precise and robust.

Click Product page


Click library

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

Software Support

We provide a library for the Pressure2 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 Pressure2 Click driver.

Standard key functions :

Example key functions :

Examples Description

This application measures pressure in range from 0 to 14 bars (with a resolution of up to 0.2 mbars),

but because of the stainless steel cap enclosure, the sensor can withstand up to 30 bars of pressure.

The demo application is composed of two sections :

Application Init

Initializes driver init and chip init.

void application_init ( void )
{
log_cfg_t log_cfg;
pressure2_cfg_t pressure2_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
pressure2_cfg_setup( &pressure2_cfg );
PRESSURE2_MAP_MIKROBUS( pressure2_cfg, MIKROBUS_1 );
if ( SPI_MASTER_ERROR == pressure2_init( &pressure2, &pressure2_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( PRESSURE2_ERROR == pressure2_default_cfg ( &pressure2 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Reads sensor and logs to USB UART pressure and temperature every second.

void application_task ( void )
{
pressure2_read_sensor( &pressure2, &pressure, &temperature );
log_printf( &logger," Pressure: %.2f mBar\r\n", pressure );
log_printf( &logger," Temperature: %.2f degC\r\n\n", temperature );
Delay_ms ( 1000 );
}

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.Pressure2

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.


pressure2_read_coefficient
uint16_t pressure2_read_coefficient(pressure2_t *ctx, uint8_t index)
Read calibration coefficients and return coefficient.
pressure2_cfg_setup
void pressure2_cfg_setup(pressure2_cfg_t *cfg)
Config Object Initialization function.
pressure2_default_cfg
err_t pressure2_default_cfg(pressure2_t *ctx)
Click Default Configuration function.
pressure2_read_sensor
void pressure2_read_sensor(pressure2_t *ctx, float *press, float *temp)
Read sensor.
pressure2_send_cmd_adc
uint32_t pressure2_send_cmd_adc(pressure2_t *ctx, uint8_t cmd)
ADC conversion and return 24bit result.
application_task
void application_task(void)
Definition: main.c:73
pressure2_t
Click ctx object definition.
Definition: pressure2.h:111
PRESSURE2_MAP_MIKROBUS
#define PRESSURE2_MAP_MIKROBUS(cfg, mikrobus)
Definition: pressure2.h:68
application_init
void application_init(void)
Definition: main.c:37
pressure2_cfg_t
Click configuration structure definition.
Definition: pressure2.h:131
pressure2_init
err_t pressure2_init(pressure2_t *ctx, pressure2_cfg_t *cfg)
Initialization function.
PRESSURE2_ERROR
#define PRESSURE2_ERROR
Definition: pressure2.h:80