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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.14
mikroSDK Library: 2.0.0.0
Category: Optical
Downloaded: 173 times
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License: MIT license
Ambient 12 Click is a compact add-on board used to sense the amount of the present ambient light. This board features the BH1620FVC, an analog current-output type ambient light sensor from Rohm Semiconductor.
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4632_ambient_12_click.zip [400.09KB] | 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 12 Click is a compact add-on board used to sense the amount of the present ambient light. This board features the BH1620FVC, an analog current-output type ambient light sensor from Rohm Semiconductor.
We provide a library for the Ambient12 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 Ambient12 Click driver.
ambient12_cfg_setup
Config Object Initialization function.
void ambient12_cfg_setup ( ambient12_cfg_t *cfg );
ambient12_init
Initialization function.
err_t ambient12_init ( ambient12_t *ctx, ambient12_cfg_t *cfg );
ambient12_read_adc_voltage
This function reads raw 12-bit ADC data and converts it to voltage by using I2C serial interface.
err_t ambient12_read_adc_voltage ( ambient12_t *ctx, float *voltage );
ambient12_voltage_to_lux
This function calculates illuminance (lux) based on the voltage input.
int32_t ambient12_voltage_to_lux ( ambient12_t *ctx, float voltage );
ambient12_set_gain_mode
This function sets the gain mode.
void ambient12_set_gain_mode ( ambient12_t *ctx, uint8_t mode );
This example demonstrates the use of Ambient 12 Click board.
The demo application is composed of two sections :
Initializes the driver and sets the gain mode to M-Gain which can detect the illuminance of up to 10000 lux.
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
ambient12_cfg_t ambient12_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 );
Delay_ms ( 100 );
log_info( &logger, " Application Init " );
// Click initialization.
ambient12_cfg_setup( &ambient12_cfg );
AMBIENT12_MAP_MIKROBUS( ambient12_cfg, MIKROBUS_1 );
if ( ADC_ERROR == ambient12_init( &ambient12, &ambient12_cfg ) )
{
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
ambient12_set_gain_mode ( &ambient12, AMBIENT12_MODE_M_GAIN );
log_printf( &logger, " M-Gain mode selected.\r\n Up to 10000 lux can be measured.\r\n" );
log_info( &logger, " Application Task " );
}
Reads the ADC voltage and then calculates the illuminance from it. The calculated value of illuminance in lux is being displayed on the USB UART approximately once per second.
void application_task ( void )
{
float voltage = 0;
if ( AMBIENT12_OK == ambient12_read_adc_voltage ( &ambient12, &voltage ) )
{
log_printf( &logger, " Illuminance : %ld Lux\r\n\n", ambient12_voltage_to_lux( &ambient12, voltage ) );
}
Delay_ms ( 1000 );
}
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.