Quick guide and notes to myself on how to configure Klipper Mainsail for Ender 3 Pro.
You can get klipper here – https://github.com/th33xitus/kiauh
After Klipper is installed, the next step is to configure it for the 3D printer.
Download a printer.cfg template for your printer at –
For a 4.2.2 board, use the settings below (this is at the top of printer.cfg)
# This file contains pin mappings for the stock 2020 Creality Ender 3
# Pro with the 32-bit Creality 4.2.2 board. To use this config, during
# "make menuconfig" select the STM32F103 with a "28KiB bootloader" and
# serial (on USART1 PA10/PA9) communication.
Run the kiauh script to configure the firmware for the correct MCU board that controls the printer
cd ~ && ./kiahu/kiahu.sh
Choose number 4 for advanced
Then 4 again for [Build + Flash]
MCU architecture = STMicroelectronics STM32
Processor Model = (STM32F103)
Bootloader offset = 28KiB bootloader
Then press escape and Y to quit and save
Transfer the bin file using WinSCP
Find the klipper.bin file in ~/klipper/out/klipper.bin
Then flash the firmware to the 3D printer. Shut off the 3D printer. Copy the bin file to the SD card and insert the SD card into the MCU. Then boot up the printer.
Then plug in the printer to klipper and run the command below to find the serial ID
Copy and paste the output to printer.cfg in the [mcu] section, then save and restart