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Pervasive Displays Library Suite

The Pervasive Displays library suite is specifically designed for the Pervasive Displays screens and boards.

It provides a high-level interface to drive the e-paper screens with global, fast and partial update, supports capacitive touch and haptic feed-back. It is developed in C++.

It supports

General architecture

The suite contains three layers:

  • The application libraries include graphics with clock, gauge and histogram; GUI with label, button, check-box or slider; codes with bar- and QR-codes; file to save and retrieve BMP files; and serial to generate and print header files on serial console;

  • The screen libraries support additional screen-specific features for the Pervasive Displays e-paper screens;

  • The shared libraries provide the common classes of the primitives for text and graphics; the interface for the peripherals GPIO, UART, SPI and I²C; and the fonts libraries.

The appendix contains application notes, reference designs, a glossary, details on the used environment, an index, copyright, licence and disclaimer and other documents.

Documentation

The documentation consists on two documents:

  • This User guide focuses on how to use the different libraries, with commented examples;

  • The Reference manual lists all the objects and functions, with details for their parameters and returned results.

Additionally, the Wiki provides a gradual introduction to the e-paper technology and how to use it.