ePaperDriver
An easy to use java driver for ePaper / eInk displays with serial interface. Driver can be used within java applications or in stand alone mode.
The driver is known to work with the following devices so far:
- Waveshare 4.3 inch e-Paper display
Prerequisites
Serial communication with the display device is handled by the jssc library. If you use the library as maven artifact, the dependency will be installed automatically.
Usage as library in java application
- Include the jar file to your java application.
- Obtain a
SerialEPaperDisplayinstance - Execute desired commands.
Example:
SerialEPaperDisplay display = new SerialEPaperDisplay("COM5");
display.connect();
display.displayText(300, 260, "Hello World");
display.repaint();
Usage in standalone mode
Most of the commands are also available using a command line interface: Example:
java -jar epaperdriver.jar --device COM5 --fill --drawCircle 200 300 125 --refresh
*To see full list of options use --help
Preview
Code used
SerialEPaperDisplay display = new SerialEPaperDisplay("COM5");
display.connect();
display.drawRectangle(20, 20, 40, 580, true);
display.drawRectangle(20, 560, 780, 580, true);
display.drawRectangle(20, 20, 780, 40, true);
display.drawRectangle(760, 20, 780, 580, true);
display.setEnglishFontSize(DisplayFontSize.DotMatrix_64);
display.displayText(300, 260, "Hello World");
display.setEnglishFontSize(DisplayFontSize.DotMatrix_32);
display.displayText(100, 360, "https://github.com/SchmidChristian/ePaperDriver");
display.drawCircle(410, 160, 50, true);
display.repaint();
Debugging
To get some more debug information you can set log level to trace:
-Dorg.slf4j.simpleLogger.defaultLogLevel=trace
Questions / answers
If have have any further questions / comments you can drop me an email: