e-paper GDE021A1 display

I'm not really sure what the plan is with cmd: new Uint8Array?

to change from

this.scd(this.C.CMD_SOMETHING, 0x00);

to

this.scd(this.C.cmd[5], 0x00);

thanks for the hints, i will implement them

Graphics Instance
The (hardware) display buffer needs 3096 bytes, where each byte represents 4 pixels, first pixel to the left. I already refactored the old code to use bitoperations (with bitmasks) instead of working with Strings.(obviously you did not see the old code) It is faster and right now the most time is used for the (hardware) display refresh itself.

Is that possible with the arraybuffer Graphics instance? I will try it at home, last time it did not work for me.

ps: afaik the Graphics instance would work with an Array with size 12384 (172*72) which is 4 times larger than my version with size 3096 and i guess it would send 12384 bytes instead of 3096?