Geeetech

Rather than replace the mainboard with a 32bit variety, I opted to just use Klipper on my A20, keep the 8 bit board and replace the drivers with TMC2209s. Klipper flashes very basic I/O code to the mainboard and does all the kinematic/planning on a Raspberry PI which makes it extremely fast and ...

This is resolved - for those searching on how to make Klipper work with the A20M LCD :

[display]
lcd_type: st7920
cs_pin: ar5
sclk_pin: ar21
sid_pin: ar36

encoder_pins: ^ar16,^ar17
click_pin: ^ar19

[output_pin beeper]
pin: ar18

The GT2560v3 schematic is useless, had to derive this from digging ...

Someone else on this forum mentions that he got it working, but unfortunately didn't post how.

#[display]
#lcd_type: hd44780
#rs_pin: ar20
#e_pin: ar36
#d4_pin: ar21
#d5_pin: ar21
#d6_pin: ar5
#d7_pin: ar6
#encoder_pins: ^ar16, ^ar17
#click_pin: ^!ar19

Basically I need pin definitions for the ...

Does anyone have the appropriate LCD configuration section for setting up Klipper firmware on the A20M? Maybe an updated schematic for the GT2560v3 and LCD panel would also work.

thanks!
-W