Library Description

Library provides full control of the LED's illumination. User can change the LED's brightness and apply "One Time Programming" with write function, or check the wiper and OTB bits with read function.

Key functions:

• void leddriver7_write ( uint8_t cmd_byte, uint8_t pos ); - Function sets command byte and potentiometer position.
• uint8_t leddriver7_read ( ); - Function reads single byte of data from output register.

Examples description

The application is composed of three sections :

• System Initialization - Initializes I2Ca nd LOG modules.
• Application Initialization - Initalizes I2C driver and writes an initial log.
• Application Task - This example demonstrates the use of LED Driver 7 Click board, by cycling wiper positions of AD5171 Digital Potentiometer.

void application_task ( )
{
    for ( n_pos = 12; n_pos < pos_num; n_pos++ )
    {
        leddriver7_write ( LEDDRIVER7_NORM_OP_MODE, n_pos );
        ByteToStr( n_pos, test_log );
        mikrobus_logWrite( "Position :", _LOG_TEXT );
        mikrobus_logWrite( test_log, _LOG_LINE );
        Delay_ms( 500 );
    }
}

Other mikroE Libraries used in the example:

• I2C
• UART
• Conversions

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.