> I'm assuming the RFID reader is just showing up as a virtual keyboard in this kind of setup. I'm not affiliated with this project but built a few variations

> I'm assuming the RFID reader is just showing up as a virtual keyboard in this kind of setup. I'm not affiliated with this project but built a few variations of the same thing several years ago. Essentially, yes, you can configure these scanners in a keyboard mode such that they type the student id with a return. Just set up a simple form with focus on a text field, and reset after each submission. One iteration I worked on used some other groups web form that wasn't design with this case. I just set up my Pis to automatically launch Firefox on boot, and wrote user script to browse the site and launch the form. This was all built into the image so if anything ever went wrong, just write the image to a new SD card and reboot. You can set up the scanners as to scan cards passively as well, but (the way I did it anyways) they won't decode the id when configured this way. Or maybe it was just more fun to reverse engineer it.