Air Flow click
Air Flow Click is a compact add-on board that contains a flow-based 2-in-1 differential pressure sensor. This board features the LHDULTRAM012UB3, LHD ULTRA series micro-flow differential pressure sensor from TE Connectivity Measurement Specialties.
click Product page
Click library
- Author : Luka Filipovic
- Date : May 2021.
- Type : I2C/SPI type
Software Support
We provide a library for the AirFlow 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 from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
Library Description
This library contains API for AirFlow Click driver.
Standard key functions :
airflow_cfg_setup
Config Object Initialization function.
airflow_init
Initialization function.
airflow_default_cfg
Click Default Configuration function.
Example key functions :
airflow_reset_device
Reset device.
airflow_get_differential_pressure
Reads differential pressure.
airflow_get_atmospheric_pressure
Reads atmospheric pressure and temperature.
Example Description
This example showcases ability for device to read differential
pressure, atmospheric pressure and ambient temperature.
The demo application is composed of two sections :
Application Init
Initialize host communication modules (UART, I2C/SPI). Read
electric signature data from device and logs it to terminal.
{
log_cfg_t log_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
Delay_ms( 100 );
log_info( &logger, " Application Init " );
if ( ( init_flag == I2C_MASTER_ERROR ) || ( init_flag == SPI_MASTER_ERROR ) )
{
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
{
log_error( &logger, " Read" );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
else
{
log_printf( &logger, "Firmware version: %d.%d\r\n", ( int16_t )airflow.major_fw_ver, ( int16_t )airflow.minor_fw_ver );
log_printf( &logger, "Part number: " );
for ( uint8_t pn = 0; pn < 11; pn++ )
log_printf( &logger, "%c", airflow.part_number[ pn ] );
log_printf( &logger, "\r\n" );
log_printf( &logger, "Lot number: " );
for ( uint8_t pn = 0; pn < 7; pn++ )
log_printf( &logger, "%c", airflow.lot_number[ pn ] );
log_printf( &logger, "\r\n" );
log_printf( &logger, "Pressure range: %d\r\n", airflow.pressure_range );
log_printf( &logger, "Output type: %c\r\n", airflow.output_type );
log_printf( &logger, "Scale factor: %d\r\n", airflow.scale_factor );
log_printf( &logger, "Calibration ID: %s\r\n", airflow.calibration_id );
log_printf( &logger, "Week: %d\r\n", ( int16_t )airflow.week );
log_printf( &logger, "Year: %d\r\n", ( int16_t )airflow.year );
log_printf( &logger, "Sequence number: %d\r\n", airflow.sequence_number );
}
Delay_ms( 2000 );
log_info( &logger, " Application Task " );
}
Application Task
Reads differential pressure in Pa, atmospheric pressure in mBar
and ambient temperature in C every 500ms and logs read data.
{
float pressure_data, temperature_data;
log_printf( &logger, "Differential pressure[Pa]: %.2f\r\n", pressure_data );
log_printf( &logger, "Atmospheric pressure[mBar]: %.2f\r\nTemperature[degC]: %.2f\r\n", pressure_data, temperature_data );
log_printf( &logger, "***********************************************************\r\n" );
Delay_ms( 500 );
}
The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
Other Mikroe Libraries used in the example:
- MikroSDK.Board
- MikroSDK.Log
- Click.AirFlow
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. UART terminal is available in all MikroElektronika compilers.