Library Description

The library covers all the necessary functions to control Load Cell 2 click board. Library performs a standard I2C interface communication.

Key functions:

• float loadcell2_get_weight ( loadcell2_data_t *cell_data ) - Get weight function.
• uint32_t loadcell2_get_result ( void ) - Get results function.
• void loadcell2_set_default_config ( void ) - Set default sensor configuration function.

Examples description

The application is composed of three sections :

• System Initialization - Initializes I2C, set INT pin as input and stert to write log.
• Application Initialization - Initializes I2C driver and performs the device reset, set power on and default configuration. Sets tare the scale, calibrate scale and start measurements.
• Application Task - (code snippet) - This is an example which demonstrates the use of Load Cell 2 Click board. Display the measurement of scales in grams [g]. Results are being sent to the Usart Terminal where you can track their changes. All data logs write on USB uart changes for every 1 sec.

void application_task ( )
{
    weight_val = loadcell2_get_weight( &cell_data );

    log_display( weight_val );

    Delay_ms( 1000 );
}

Additional Functions :

• void log_display ( float display_val ) - Function displays readings as floating point value with two decimal places.

Other mikroE Libraries used in the example:

• I2C
• UART
• Conversions

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.