Connecting the EXT3 to the Adafruit Feather M0

Scope

This configuration has been tested successfully against
  • Feather M0 for the screens up to 3.7" included thanks to the 32KB RAM

Software

On the main sketch, set the board to boardFeatherM0, corresponding to the pins defined in the hV_Configuration.h file of the ePaper_EXT3_Basic_Library (link 1, link 2).

Notes

This configuration is valid for other Feather variants, although some pins numbers may change.
Sketch.ino

    










	

    

        
hV_Configuration.h

    

    

        

    









					
									

		
	





Hardware





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Large screens 9.7" and 12.2" require panelCSS to be defined and connected.

If the second memory is populated on the EXT3 board, flashCSS needs to be defined and connected. The library will keep flashCSS HIGH to avoid any interferences with the other devices connected to the SPI bus.



					
										
							

		
	






Posted: 28 Feb 2021
Updated: 24 May 2021, 24 Aug 2021