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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.14
mikroSDK Library: 2.0.0.0
Category: Force
Downloaded: 172 times
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License: MIT license
Load Cell 4 Click is a compact add-on board that contains a resistive sensor signal conditioner with a fast power-up data output response. This board features the ZSC31014, a CMOS integrated circuit for highly accurate amplification and analog-to-digital conversion of differential and half-bridge input signals from Renesas.
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Load Cell 4 Click is a compact add-on board that contains a resistive sensor signal conditioner with a fast power-up data output response. This board features the ZSC31014, a CMOS integrated circuit for highly accurate amplification and analog-to-digital conversion of differential and half-bridge input signals from Renesas.
We provide a library for the LoadCell4 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.
This library contains API for LoadCell4 Click driver.
loadcell4_cfg_setup
Config Object Initialization function.
void loadcell4_cfg_setup ( loadcell4_cfg_t *cfg );
loadcell4_init
Initialization function.
err_t loadcell4_init ( loadcell4_t *ctx, loadcell4_cfg_t *cfg );
loadcell4_default_cfg
Click Default Configuration function.
err_t loadcell4_default_cfg ( loadcell4_t *ctx );
loadcell4_power_dev
Enable power function.
void loadcell4_power_dev ( loadcell4_t *ctx, uint8_t power_state );
loadcell4_tare
Tare the scales function.
void loadcell4_tare ( loadcell4_t *ctx, loadcell4_data_t *cell_data );
loadcell4_get_weight
Get weight function.
float loadcell4_get_weight ( loadcell4_t *ctx, loadcell4_data_t *cell_data );
This is an example that demonstrates the use of the Load Cell 4 Click board.
The demo application is composed of two sections :
Initializes I2C driver and performs the power on. Sets tare the scale, calibrate scale and start measurements.
void application_init ( void ) {
log_cfg_t log_cfg; /**< Logger config object. */
loadcell4_cfg_t loadcell4_cfg; /**< Click config object. */
/**
* Logger initialization.
* Default baud rate: 115200
* Default log level: LOG_LEVEL_DEBUG
* @note If USB_UART_RX and USB_UART_TX
* are defined as HAL_PIN_NC, you will
* need to define them manually for log to work.
* See @b LOG_MAP_USB_UART macro definition for detailed explanation.
*/
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
loadcell4_cfg_setup( &loadcell4_cfg );
LOADCELL4_MAP_MIKROBUS( loadcell4_cfg, MIKROBUS_1 );
err_t init_flag = loadcell4_init( &loadcell4, &loadcell4_cfg );
if ( I2C_MASTER_ERROR == init_flag ) {
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
loadcell4_default_cfg ( &loadcell4 );
loadcell4_power_dev( &loadcell4, LOADCELL4_PWR_ON );
Delay_ms ( 500 );
log_printf( &logger, "-------------------------\r\n" );
log_printf( &logger, " ~~~ STEP 1 ~~~ \r\n" );
log_printf( &logger, "-------------------------\r\n" );
log_printf( &logger, " Tare the scale : \r\n" );
log_printf( &logger, "- - - - - - - - - - - - -\r\n" );
log_printf( &logger, " >> Remove all object << \r\n" );
log_printf( &logger, "- - - - - - - - - - - - -\r\n" );
log_printf( &logger, " In the following 10 sec \r\n" );
log_printf( &logger, " please remove all object\r\n" );
log_printf( &logger, " from the scale. \r\n" );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
log_printf( &logger, "-------------------------\r\n" );
log_printf( &logger, " Start tare scales \r\n" );
loadcell4_tare( &loadcell4, &cell_data );
Delay_ms ( 500 );
log_printf( &logger, "-------------------------\r\n" );
log_printf( &logger, " Tarring is complete \r\n" );
log_printf( &logger, "-------------------------\r\n" );
log_printf( &logger, " ~~~ STEP 2 ~~~ \r\n" );
log_printf( &logger, "-------------------------\r\n" );
log_printf( &logger, " Calibrate Scale : \r\n" );
log_printf( &logger, "- - - - - - - - - - - - -\r\n" );
log_printf( &logger, " >>> Load etalon <<< \r\n" );
log_printf( &logger, "- - - - - - - - - - - - -\r\n" );
log_printf( &logger, " In the following 10 sec \r\n" );
log_printf( &logger, "place 100 g weight etalon\r\n" );
log_printf( &logger, " on the scale for \r\n" );
log_printf( &logger, " calibration purpose. \r\n" );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
log_printf( &logger, "-------------------------\r\n" );
log_printf( &logger, " Start calibration \r\n" );
if ( loadcell4_calibration( &loadcell4, LOADCELL4_WEIGHT_100G, &cell_data ) == LOADCELL4_OK ) {
log_printf( &logger, "-------------------------\r\n" );
log_printf( &logger, " Calibration Done \r\n" );
log_printf( &logger, "- - - - - - - - - - - - -\r\n" );
log_printf( &logger, " >>> Remove etalon <<< \r\n" );
log_printf( &logger, "- - - - - - - - - - - - -\r\n" );
log_printf( &logger, " In the following 10 sec \r\n" );
log_printf( &logger, " remove 100 g weight \r\n" );
log_printf( &logger, " etalon on the scale. \r\n" );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
} else {
log_printf( &logger, "-------------------------\r\n" );
log_printf( &logger, " Calibration Error \r\n" );
for ( ; ; );
}
log_printf( &logger, "-------------------------\r\n" );
log_printf( &logger, " Start measurements : \r\n" );
log_printf( &logger, "-------------------------\r\n" );
}
The Load Cell 4 Click board can be used to measure weight, shows 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 4 sec.
void application_task ( void ) {
weight_val = loadcell4_get_weight( &loadcell4, &cell_data );
log_printf( &logger, " Weight : %.2f g \r\n", weight_val );
Delay_ms ( 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:
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.