airvelocity  2.1.0.0
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Air Velocity Click

Air Velocity Click is a compact add-on board that measures direct airspeed. This board features the FS3000-1005, a surface-mount type air velocity module utilizing a MEMS thermopile-based sensor from Renesas. This I2C-configurable air velocity module features a digital output with a 12-bit resolution with a wide operational range of 0-7.2meter/second (0-16.2mph). The sensor comprises a “solid” thermal isolation technology and silicon-carbide coating to protect it from abrasive wear and water condensation.

Click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Oct 2022.
  • Type : I2C type

Software Support

We provide a library for the Air Velocity 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 Air Velocity Click driver.

Standard key functions :

Example key functions :

  • airvelocity_read_output This function reads the raw output counts by using I2C serial interface.
    err_t airvelocity_read_output ( airvelocity_t *ctx, uint16_t *out_counts );
  • airvelocity_convert_counts_to_mps This function converts raw output counts to velocity in m/sec (0-7.23).
    float airvelocity_convert_counts_to_mps ( uint16_t out_counts );

Example Description

This example demonstrates the use of Air Velocity Click board by reading and displaying the output counts and air velocity in m/sec.

The demo application is composed of two sections :

Application Init

Initializes the driver and logger.

void application_init ( void )
{
log_cfg_t log_cfg;
airvelocity_cfg_t airvelocity_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
airvelocity_cfg_setup( &airvelocity_cfg );
AIRVELOCITY_MAP_MIKROBUS( airvelocity_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == airvelocity_init( &airvelocity, &airvelocity_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Reads the output counts and converts it to air velocity in m/sec. Both values will be displayed on the USB UART approximately every 250ms.

void application_task ( void )
{
uint16_t out_counts;
if ( AIRVELOCITY_OK == airvelocity_read_output ( &airvelocity, &out_counts ) )
{
log_printf ( &logger, " Out counts: %u\r\n", out_counts );
log_printf ( &logger, " Air velocity: %.2f m/s\r\n\n", airvelocity_convert_counts_to_mps ( out_counts ) );
Delay_ms ( 250 );
}
}

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.AirVelocity

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.


AIRVELOCITY_MAP_MIKROBUS
#define AIRVELOCITY_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: airvelocity.h:99
airvelocity_cfg_t
Air Velocity Click configuration object.
Definition: airvelocity.h:125
airvelocity_t
Air Velocity Click context object.
Definition: airvelocity.h:111
airvelocity_init
err_t airvelocity_init(airvelocity_t *ctx, airvelocity_cfg_t *cfg)
Air Velocity initialization function.
application_task
void application_task(void)
Definition: main.c:59
airvelocity_convert_counts_to_mps
float airvelocity_convert_counts_to_mps(uint16_t out_counts)
Air Velocity convert counts to mps function.
AIRVELOCITY_OK
@ AIRVELOCITY_OK
Definition: airvelocity.h:140
airvelocity_cfg_setup
void airvelocity_cfg_setup(airvelocity_cfg_t *cfg)
Air Velocity configuration object setup function.
application_init
void application_init(void)
Definition: main.c:29
airvelocity_read_output
err_t airvelocity_read_output(airvelocity_t *ctx, uint16_t *out_counts)
Air Velocity read output function.