Search found 4 matches

by weckso
Fri Aug 21, 2020 4:30 am
Forum: Geeetech A20M
Topic: Upgrade A20M/ A10M to 32 bit MAin Board.... ANY one?
Replies: 21
Views: 45614

Re: Upgrade A20M/ A10M to 32 bit MAin Board.... ANY one?

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 ...
by weckso
Sun Aug 16, 2020 8:37 am
Forum: Geeetech A20M
Topic: Klipper Firmware LCD config
Replies: 3
Views: 5241

Re: Klipper Firmware LCD config

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 ...
by weckso
Tue Jul 28, 2020 10:52 pm
Forum: Geeetech A20M
Topic: Klipper Firmware LCD config
Replies: 3
Views: 5241

Re: Klipper Firmware LCD config

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 ...
by weckso
Tue Jul 28, 2020 12:35 pm
Forum: Geeetech A20M
Topic: Klipper Firmware LCD config
Replies: 3
Views: 5241

Klipper Firmware LCD config

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