I've used barcode scanners many times but only in combination with PC as USB keyboard ...
I would like to connect barcode scanner to a robot controller (without a PLC). Has anyone done this?
I see two options: RS-232 and ethernet.
For RS-232 there would have to be karel program that periodically request data from scanner or does scanner send the data all the time?
Ethernet would be linked to DIs but this option is more expencive ...
Am I wronge in any case? Is there an easier way I didn't think of?
Thanks