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++.
- the EPD Extension Kit Gen 3 (EXT3 or EXT3-1) and Touch Expansion Board for EXT3 (EXT3-Touch) boards;
- the iTC monochrome , monochrome with touch and colour (black-white-red) screens; and
- the EPD Pico Kit (EPDK) , which includes a Raspberry Pi Pico RP2040, an EXT3-1 extension board and a 2.66" monochrome panel.
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 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.