Library Description

Library provides functions for basic reading and writing to device. There are some specific functions for enabling sesnors and reading data from previous enabled sensor.

Key functions:

• void ambient9_enable_data ( uint8_t als_ps ) - Enable one of sensors
• uint32_t ambient9_als_data ( void ) - Read ALS data
• uint16_t ambient9_proxy_data ( void ) - Read proximity data

Examples description

The application is composed of three sections :

• System Initialization - Initialization of I2C communication module, log and interrupt pin
• Application Initialization - Reads device status if it's power on and part ID, then enables one of two sensor reading values.
• Application Task - Read one of two sleceted sensor values every 100ms.

void application_task ( )
{
    uint16_t proxy_data;
    uint32_t als_data;

    if ( AMBIENT9_ALS == dev_mode )
    {
        als_data = ambient9_als_data(  );
        LongWordToStr( als_data, demo_txt );
        mikrobus_logWrite( " - ALS data: ", _LOG_TEXT );
        mikrobus_logWrite( demo_txt, _LOG_LINE );
    }
    else if ( AMBIENT9_PROXY == dev_mode )
    {
        proxy_data = ambient9_proxy_data(  );
        WordToStr( proxy_data, demo_txt );
        mikrobus_logWrite( " - Proximity data: ", _LOG_TEXT );
        mikrobus_logWrite( demo_txt, _LOG_LINE );
    }
    Delay_ms( 100 );
}

Other mikroE Libraries used in the example:

• I2C
• Conversions
• UART

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.