Hi, I think you want to build a custom PLC with WiFi capabilities and HMI Support.
I Have experience in Atmega2560 , written program in C,C++ and ASM
I can write event based, non blocking code with future extension capabilities
I'll develop the code with Modbus interface, HMI Interface, WiFi Interface and GPIO Interface
for 150 Euros +50 Euros (for GUI application for windows)
if you need only Servo and stepper interface then its only 70 Euros
I dont understand this command
Stepper MOTOR 1: <BUTTON "Left Turn"> <"BUTTON "Right Turn"> <Button "ON"> <Button "OFF">
everything has same
contact me if you want