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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.17
mikroSDK Library: 2.0.0.0
Category: Optical
Downloaded: 224 times
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License: MIT license
Ambient 8 Click is equipped with the ambient light sensor (ALS) IC, providing measurements of the ambient light intensity in a digital format. It utilizes the LTR-329ALS-01, an ALS with the I2C interface.
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DOWNLOAD LINK | RELATED COMPILER | CONTAINS |
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3367_ambient_8_click.zip [423.66KB] | mikroC AI for ARM GCC for ARM Clang for ARM mikroC AI for PIC mikroC AI for PIC32 XC32 GCC for RISC-V Clang for RISC-V mikroC AI for AVR mikroC AI for dsPIC XC16 |
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Ambient 8 Click is equipped with the ambient light sensor (ALS) IC, providing measurements of the ambient light intensity in a digital format. It utilizes the LTR-329ALS-01, an ALS with the I2C interface.
We provide a library for the Ambient8 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.
This library contains API for Ambient8 Click driver.
Config Object Initialization function.
void ambient8_cfg_setup ( ambient8_cfg_t *cfg );
Initialization function.
AMBIENT8_RETVAL ambient8_init ( ambient8_t ctx, ambient8_cfg_t cfg );
Click Default Configuration function.
void ambient8_default_cfg ( ambient8_t *ctx );
This function sets constants ( gain and integration time ) for lux level calculation.
void ambient8_set_constants ( ambient8_t* ctx );
This function checks for new data by polling ALS status register.
AMBIENT8_RETVAL ambient8_get_als_data ( ambient8_t ctx, uint16_t als_data_ch1,uint16_t* als_data_ch0 );
This function reads and data and performs lux level calculation
AMBIENT8_RETVAL ambient8_get_lux_level ( ambient8_t ctx, float lux_level, float window_factor, float IR_factor );
This example collects data from the sensor, calculates the light intensity and then logs it.
The demo application is composed of two sections :
Initializes device and I2C driver.
void application_init ( void )
{
log_cfg_t log_cfg;
ambient8_cfg_t cfg;
/**
* 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.
ambient8_cfg_setup( &cfg );
AMBIENT8_MAP_MIKROBUS( cfg, MIKROBUS_1 );
ambient8_init( &ambient8, &cfg );
window_factor = 1.0;
IR_factor = 0.0;
}
Performs Lux calculation based on window and IR factor and log results.
void application_task ( void )
{
status_flag = ambient8_get_lux_level( &ambient8, &lux_level, window_factor, IR_factor );
if ( status_flag == 0 )
{
log_printf( &logger, "Lux level : %.2f lx\r\n", lux_level );
}
}
The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.
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. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.