Merge STM32 code and arduino motor control, encoder, sensor,display nextion edit , "Printer"

both arduino and stm32 codes are already working, you have to modify them, that is the task
I am looking for a person with extensive knowledge. English or Spanish language
-printers ------disc encoders, sensors, driver stepper motor.
If you are not prepared, please do not award. Free form of work. The works are carried out in remote real time plus web cameras