Hi guys! All worked well before now. But when I upload "arduino-source" code to my UNO, controller can't work with it. Then I choose serial port controller writes "Polargraph is not connected" status and not sends queye to machine. Then I uploading precompiled version via Hexloader all is ok. But I can't use this version because motor setop need to be changed for my machine.
I already used my edited arduino source and it worked good. Then I used my UNO for another sketch and uploaded polargraph source back and it just not connects to controller.
On screenshot shown processing console there I connect UNO to controller.
How can I resolve this problem?
Thanks forvard for help.

Wha?! I scratched my head at this a bit and couldn't figure it out! As long as it's fixed, who cares how it got there 🙂 merry Christmas!