PowerBroker2/ELMduino problem with Serial.println

[mattoide]

Hi, thank you for this work.

When i connect https://github.com/PowerBroker2/ELMduino to this emulator through serial port usb, unwanted commands from emulator are written on serial port, and viceversa, if i use Serial.print in arduino code, it sended to emulator and it want to execute as command..