eink

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eINK Click

eINK Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.

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Click Library

• Author : MikroE Team
• Date : Feb 2020.
• Type : SPI type

Software Support

Example Description

This application demonstrates the use of eINK Click board.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Eink

Example Key Functions

• eink_cfg_setup Config Object Initialization function.

void eink_cfg_setup ( eink_cfg_t *cfg ); 

• eink_init Initialization function.

err_t eink_init ( eink_t *ctx, eink_cfg_t *cfg );

• eink_set_lut Set LUT table

void eink_set_lut ( eink_t *ctx, const uint8_t *lut, uint8_t n_bytes );

• eink_display_image Displays image

void eink_display_image ( eink_t *ctx, const uint8_t* image_buffer );

• eink_set_font Set text font

void eink_set_font ( eink_t *ctx, eink200inch_font_t *cfg_font );

Application Init

Initializes the driver and configures the Click board for 2.00 inch eINK display. After that, if the TEXT mode is supported, shows a desired text messages on the display.

void application_init ( void )
{
    eink_cfg_t cfg;   
    eink200inch_font_t cfg_font;
    eink_text_set_t text_set;

    //  Click initialization.
    eink_cfg_setup( &cfg );
    EINK_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    eink_init( &eink, &cfg );

    eink_start_config( &eink );
    eink_set_lut( &eink, eink_lut_table, 90 );
    Delay_ms ( 1000 );

#ifndef IMAGE_MODE_ONLY
    cfg_font.p_font = &guiFont_Tahoma_10_Regular[ 0 ];
    cfg_font.color = EINK_SCREEN_COLOR_WHITE;
    cfg_font.orientation = EINK_FO_HORIZONTAL;  
    eink_set_font( &eink, &cfg_font );
    
    text_set.n_char = 4;
    text_set.text_x = 10;
    text_set.text_y = 50;
    eink_text( &eink, &demo_text[ 0 ], &text_set );
    text_set.n_char = 7;
    text_set.text_x = 10;
    text_set.text_y = 90;
    eink_text( &eink, &demo_text1[ 0 ], &text_set );
    text_set.n_char = 8;
    text_set.text_x = 10;
    text_set.text_y = 130;
    eink_text( &eink, &demo_text2[ 0 ], &text_set ); 
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
#endif
}

Application Task

Draws two demo images to the display with a one-second delay between each drawing.

void application_task ( void )
{
    eink_display_image ( &eink, demo_image_black );
    Delay_1sec( );
    eink_display_image ( &eink, demo_image_white );
    Delay_1sec( );
}

Note

Due to insuficient RAM memory, only the IMAGE mode is supported with 8-bit PIC microcontrollers.

Application Output

This Click board can be interfaced and monitored in two ways:

• Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.
• UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Additional Notes and Information

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

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