Library Description

The library contains ADC functions to completely setting and reading the value from the ADC channel that sends Ambient click. The ambient light measurement resolution depends on the ADC resolution you use.

Key functions:

• void ambient7_adcInit() - ADC init.
• void ambient7_adcSetInputChannel() - ADC set input channel.
• uint32_t ambient7_adcRead() - ADC read data.

Examples description

The application is composed of three sections :

• System Initialization - Initializes UART for logging data.
• Application Initialization - Initialization driver init and ADC init.
• Application Task - Reads ADC value and this data logs to USBUART every 1 sec..
• note - Illuminance range [EV] - from 0.01[lx] to 10k[lx] depending on the ADC you are using.

void applicationTask()
{
    uint16_t ADC_value;
    char demoText[ 50 ];
        
    ADC_value = ambient7_adcRead();
    
    WordToStr(ADC_value, demoText);
    mikrobus_logWrite(" ADC value: ", _LOG_TEXT);
    mikrobus_logWrite(demoText, _LOG_LINE);
    Delay_ms( 500 );
}

Other mikroE Libraries used in the example:

• ADC Library.
• Conversions Library.

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.