Library Description

The library initializes and defines the SPI bus driver and drivers that offer a choice for writing data in the registers and reading data from the registers. The library includes functions for drawing a picture, pulls a rectangle and writes text on the screen.
The user can set the desired text font, and adjust the background color.

Key functions:

• void oledc_init( void ) - The functions that initializes the chip.
• void oledc_text( uint8_t *text, uint16_t col_off, uint16_t row_off ) - The function writes text on the screen.
• void oledc_image( const uint8_t *img, uint8_t column_off, uint8_t row_off ) - The function draws the image on the screen.

Examples Description

The application is composed of three sections:

• System Initialization - Initializes SPI module and AN pin, RST pin, CS pin, PWM pin and INT pin as an output.
• Application Initialization - Initializes the driver init and the OLED C init and sets a full screen in white color with writing demo text.
• Application Task - (code snippet) -
  • Display demo rectangle
  • Display demo line
  • Display demo Image

void applicationTask()
{
 oledc_fill_screen( 0xFFFF );
 Delay_100ms();

 /* Rectangle demo*/
 oledc_rectangle( 0, 0, 96, 96, 0xF000 );
 Delay_ms( 500 );
 oledc_rectangle( 5, 5, 91, 91, 0xFF00 );
 Delay_ms( 500 );
 oledc_rectangle( 10, 10, 86, 86, 0x00F0 );
 Delay_ms( 500 );
 oledc_rectangle( 15, 15, 81, 81, 0x0F0F );
 Delay_ms( 500 );
 oledc_rectangle( 20, 20, 76, 76, 0xF000 );
 Delay_ms( 500 );
 oledc_rectangle( 25, 25, 71, 71, 0xFF00 );
 Delay_100ms();

 /* Line demo */
 oledc_rectangle( 25, 25, 71, 27, 0 );
 Delay_100ms();
 oledc_rectangle( 25, 71, 71, 73, 0 );
 Delay_100ms();
 oledc_rectangle( 25, 25, 27, 71, 0 );
 Delay_100ms();
 oledc_rectangle( 68, 25, 71, 71, 0 );
 Delay_ms( 3000 );


 /* Image demo */
 oledc_image( &me_logo_bmp[0], 0, 0 );
 Delay_ms( 2000 );
}

Other mikroE Libraries used in the example:

• Conversions
• SPI

Additional notes and information

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.