I'm doing the brainstorming thing, I need to multiplex my PC serial port in several remote serials ports that let me connect several SCADA devices.
The problem is that the SCADA device and the software of this device and the firmware do not support device ID,headers or similar. All designed to connect only one device for each serial port at the computer.
The only idea that I get is add some header to the data and then send it at the common serial and let to the remote Arduino decide if the packet id addressed to him print this data at the serial output, for the opposite way the Arduino picks the data add his local header and then print in the main serial.
Think in several devices connected via RS-485 and and several Arduinos connected to this BUS, We have other way to do this? to multiplex a serial port?
Best Regards Frank