fixes

This release fixes some drawing boundary checking and memory allocation of large buffers into PSRAM.

Fixes and e-paper panel tester

With the help of my e-paper panel tester example, I was able to correct a bunch of issues with the code. This release includes the panel tester as an example sketch too.

Added support for a few Pimoroni products

This release adds support for the Pimoroni Inky phat 2.13 B/W and B/W/R 122x250, along with the Inky what 4.2" 400x300 B/W/R

Fixes for buffered graphics

This release fixes working with a back buffer and 3-color panels. It also adds a new example for 3-color panels.

Initial Release

This is the first release of my bb_epaper library. I'm trying a different licensing model which will hopefully generate some revenue in the long time. The Business Source License converts to an Apache license after 4 years. In the initial period, it does not allow for redistribution or use in any commercial products without an explicit license. This doesn't prevent free use for hobby projects, so please do use it.