eink-waveshare-rs

This library contains a driver for the 4.2 Inch E-Paper Moduel from Waveshare.

Support for more (especially the smaller and faster ones) should follow after the library around the 4.2" EInk is stable and tested enough.

4.2 Inch E-Ink

Out of the Box the original driver from Waveshare supported only full updates.

Currently only support for the 4.2 Black/White one

Be careful with the partial updates! It was only tested in a mBED implementation, the rust one wasn't tested enough yet!!!

Interface

Interface	Description
VCC	3.3V
GND	GND
DIN	SPI MOSI
CLK	SPI SCK
CS	SPI chip select (Low active)
DC	Data/Command control pin (High for data, and low for command)
RST	External reset pin (Low for reset)
BUSY	Busy state output pin (Low for busy)

TODO's

• add more examples (e.g. for f3)
• improve the partial drawing/check the timings/timing improvements/....
• for later: add support for the smaller waveshare epds
• License: Stay with ISC (=MIT) or go to the Apache+MIT Dual License as used in many other projects?

Graphics/Drawing

Supports:

• Lines
• Squares
• Circles
• Pixels
• Chars
• Strings

Chars and Strings work with a 8x8-Font.

Support for bigger sized/independent Fonts is in work.

Examples

There is an example for Raspberry Pi in the example folder.