Ameba Arduino: [RTL8722CSM] [RTL8722DM] [RTL8722DM MINI] Display Text on E-Paper

Materials

  • AmebaD [RTL8722DM / RTL8722CSM / RTL8722DM MINI] x 1
  • Waveshare 2.9inch e-Paper HAT (D) x 1

Example

In this example, we use the Ameba RTL8722 module connects to a Waveshare 2.9inch e-Paper module to display a texts in alphanumeric. The display uses the flexible substrate as the base plate, with interface and a reference system design.The 2.9” active area contains 296×128 pixels and has 1-bit white/black full display capabilities. An integrated circuit contains gate buffer, source buffer, interface, timing control logic, oscillator, etc… are supplied with each panel. You may refer to the official 2.9inch e-Paper HAT (D) datasheet to know more about this module.

Front view of the e-Paper Module:

1

RTL8722DM / RTL8722CSM wiring diagram:

1

1

RTL8722DM MINI wiring diagram:

1

1

Firstly, you need to open the “DisplayText” example in “File” -> “Examples” -> “AmebaEink” -> “EinkDisplayText”:

1

Upload the code to the board and press the Reset button after the uploading is done. You will find these texts displayed on the board:

1

Code Reference

[1] We use Good Display GDEH029A1 2.9 Inch / 296×128 Resolution / Partial Refresh Arduino Sample Code to get the e-Paper successfully Display:
http://www.good-display.com/product/201.html
Copyrights ©瑞晟微电子(苏州)有限公司 2021. All rights reserved.
Please confirm that QQ communication software is installed