Attendance Tags

I would love a barcode tag (similar to gyms) for the student to scan when they arrived in the building to help with a more consistent attendance record. Parents would have a tag that associates with the student (similar to a library card system) that they could scan that would pull up their account info on our end as well. It would be helpful if you could choose different things to pop up if their account is past due when they scan in or have any important messages regarding upcoming events for their specific classes.