MemberApril 27, 2020 at 9:35 am
every CONTROLLINO has usually different COM port.
Because typically each new device is assigned with a new COM port number. To be precise – this may be configured in the operating system settings – if a new device with the same PID/VID gets the same or a new COM port number.
Please also try to manually change the COM port in the computer manager, COM3 can have collision.