I have a 17" ELO Touchscreen and was wondering if there was any benefit to either the serial or usb connection.
The only issue I can think of is when I've used a serial connection in the past (for instance a GPS) it would sometimes cause issues especially during bootup if it was sending information.
Thanks.
I've always used serial and it's been fine. I think the USB just sets up a virtual com port and works like a serial one anyway.
Im using Serial as well and I don't have any issues.
Serial works fine, I have had several machines running serial, keep in mind however if you add a LED screen it will most likely be serial as well and most machines nowadays have only 1 serial port on board which would mean if you do you would have to purchase a USB to Serial adapter.
Also for the record the couple of USB touchscreens I have used come with their own drivers and the computer does not see them as a serial device (com port)