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README.md

E-Paper Display - eINK Click (Mikroe)

Summary

This project aims to show the hardware driver that is used to interface with eINK Click and E-Paper display using the Silicon Labs platform.

E-Paper display is based on Active Matrix Electrophoretic Display (AMEPD) technology and has an integrated pixel driver, which uses the SPI interface to communicate with the host MCU. The screen displays a clear and crisp graphics, and has an ultra-wide viewing range. Another key feature of the E-Ink technology is the extremely low power consumption, even when the display actively refresh its content.

Required Hardware

Hardware Connection

  • If the EFR32xG24 Explorer Kit is used:

    eINK display needs an external adapter to interface with the EFR32xG24 Explorer Kit. The hardware connection is shown in the image below:

    board

  • If the SiWx917 Wi-Fi 6 and Bluetooth LE 8 MB Flash SoC Pro Kit is used:

    Description BRD4338A GPIO BRD4002 Breakout Pad EINK CLICK - WITHOUT DISPLAY Board
    Reset GPIO_46 P24 RTS
    Busy indicator GPIO_47 P26 BSY
    Data/Config GPIO_48 P28 D/C
    RTE_GSPI_MASTER_CLK_PIN GPIO_25 P25 SCK
    RTE_GSPI_MASTER_MOSI_PIN GPIO_27 P29 SDI
    RTE_GSPI_MASTER_CS0_PIN GPIO_28 P31 CS

Setup

You can either create a project based on an example project or start with an empty example project.

Create a project based on an example project

  1. From the Launcher Home, add your device to My Products, click on it, and click on the EXAMPLE PROJECTS & DEMOS tab. Find the example project filtering by eink.

  2. Click Create button on the Third Party Hardware Drivers - E-Paper Display - eINK Click (Mikroe) example. Example project creation dialog pops up -> click Create and Finish and Project should be generated.

    create_project

  3. Build and flash this example to the board.

Start with an empty example project

  1. Create an "Empty C Project" for the your board using Simplicity Studio v5. Use the default project settings.

  2. Copy the file app/example/mikroe_eink_display/app.c into the project root folder (overwriting the existing file).

  3. Install the software components:

    • Open the .slcp file in the project.

    • Select the SOFTWARE COMPONENTS tab.

    • Install the following components:

    If the EFR32xG24 Explorer Kit is used:

    • [Third Party Hardware Drivers] → [Display & LED] → [E-Paper display 1.54" 200x200 dots (Mikroe)]
    • [Third Party Hardware Drivers] → [Services] → [GLIB - OLED Graphics Library]

    If the SiWx917 Wi-Fi 6 and Bluetooth LE 8 MB Flash SoC Pro Kit is used:

    • [Third Party Hardware Drivers] → [Display & LED] → [E-Paper display 1.54" 200x200 dots (Mikroe)]
    • [Third Party Hardware Drivers] → [Services] → [GLIB - OLED Graphics Library]

  4. Build and flash this example to the board.

Note:

  • Make sure that the Third Party Hardware Drivers extension is installed. If not, follow this documentation.

  • Third-party Drivers Extension must be enabled for the project to install "E-Paper Display (Mikroe)" component.

How It Works

Testing

After setting up all the required components, flash the code to the Explorer Kit and you will see the result looks like below.

result

Report Bugs & Get Support

To report bugs in the Application Examples projects, please create a new "Issue" in the "Issues" section of third_party_hw_drivers_extension repo. Please reference the board, project, and source files associated with the bug, and reference line numbers. If you are proposing a fix, also include information on the proposed fix. Since these examples are provided as-is, there is no guarantee that these examples will be updated to fix these issues.

Questions and comments related to these examples should be made by creating a new "Issue" in the "Issues" section of third_party_hw_drivers_extension repo.