Connecting the EXT3 to the Teensy 3

Scope

This configuration has been tested successfully against
  • Teensy 3.0 board
  • depending on the available RAM, for all the screens for Teensy 3.5 and 3.6 with 256 kB; up to 5.81" for Teensy 3.1 and 3.2 with 64 kB; up to 2.13" for Teensy 3.0 with 16 kB.

Software

On the main sketch, set the board to boardTeensy3x, corresponding to the pins structure pins_s  defined in the hV_Configuration.h file of the ePaper_EXT3_Basic_Library (link 1, link 2).
Sketch.ino

    










	

    

        
hV_Configuration.h

    

    

        

    









					
									

		
	





Hardware





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Large screens 9.7" and 12.2" require panelCSS to be defined and connected. Please note they require large RAM only provided by the Teensy 3.5 and 3.6 boards.

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: 15 May 2022
Updated: