Load Cell 8 click
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Click library
- Author : Stefan Ilic
- Date : Dec 2023.
- Type : I2C type
Software Support
We provide a library for the Load Cell 8 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 Load Cell 8 Click driver.
Standard key functions :
loadcell8_cfg_setup
Config Object Initialization function.
void loadcell8_cfg_setup(loadcell8_cfg_t *cfg)
Load Cell 8 configuration object setup function.
Load Cell 8 Click configuration object.
Definition: loadcell8.h:142
loadcell8_init
Initialization function.
err_t loadcell8_init(loadcell8_t *ctx, loadcell8_cfg_t *cfg)
Load Cell 8 initialization function.
Load Cell 8 Click context object.
Definition: loadcell8.h:122
loadcell8_default_cfg
Click Default Configuration function.
err_t loadcell8_default_cfg(loadcell8_t *ctx)
Load Cell 8 default configuration function.
Example key functions :
loadcell8_read_raw_adc
This function reads raw ADC value by using I2C serial interface.
err_t loadcell8_read_raw_adc(loadcell8_t *ctx, uint32_t *raw_adc)
Load Cell 8 read raw ADC value function.
loadcell8_tare_scale
This function calculates the cell_data which is the raw ADC readings of the empty container by using I2C serial interface.
err_t loadcell8_tare_scale(loadcell8_t *ctx, loadcell8_data_t *cell_data)
Load Cell 8 read raw ADC value function.
Load Cell 8 Click data object.
Definition: loadcell8.h:159
loadcell8_calibration_weight
This function calibrates the weight by calculating the cell_data for the input calibration weight by using I2C serial interface.
err_t loadcell8_calibration_weight(loadcell8_t *ctx, uint16_t cal_val, loadcell8_data_t *cell_data)
Load Cell 8 calibrate weight function.
Example Description
This example demonstrates the use of Load Cell 8 click by measuring the weight
in grams of the goods from the load cell sensor connected to the click board.
The demo application is composed of two sections :
Application Init
Initializes the driver and reads the tare scale of the empty container, and after
that, it calibrates the weight scale with a known calibration weight.
{
log_cfg_t log_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
if ( I2C_MASTER_ERROR ==
loadcell8_init( &loadcell8, &loadcell8_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_printf( &logger, " Remove all goods from the scale in the following 5 sec.\r\n" );
Delay_ms( 5000 );
log_printf( &logger, " Calculating tare scale...\r\n" );
{
log_printf( &logger, " Tarring complete!\r\n\n" );
}
else
{
log_error( &logger, " Calculating tare scale." );
for ( ; ; );
}
log_printf( &logger, " Place a %ug calibration weight on the scale in the following 5 sec.\r\n",
Delay_ms( 5000 );
log_printf( &logger, " Calibrating weight...\r\n" );
{
log_printf( &logger, " Calibration complete!\r\n\n" );
}
else
{
log_error( &logger, " Calibrating weight." );
for ( ; ; );
}
log_printf( &logger, " ___________________\r\n" );
log_printf( &logger, " Start measurements:\r\n" );
log_printf( &logger, " ___________________\r\n" );
Delay_ms( 500 );
}
#define LOADCELL8_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: loadcell8.h:108
#define LOADCELL8_WEIGHT_100G
Definition: loadcell8.h:76
@ LOADCELL8_ERROR
Definition: loadcell8.h:182
@ LOADCELL8_OK
Definition: loadcell8.h:181
void application_init(void)
Definition: main.c:32
Application Task
The demo application measures weight and shows the measurement of scales in grams [ g ].
Results are being sent to the Usart Terminal where you can track their changes.
{
float weight_g = 0;
{
log_printf( &logger, " Weight : %.2f g \r\n", weight_g );
}
Delay_ms( 100 );
}
err_t loadcell8_get_weight(loadcell8_t *ctx, loadcell8_data_t *cell_data, float *weight_g)
Load Cell 8 get weight function.
void application_task(void)
Definition: main.c:100
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.LoadCell8
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.