To get the tag value, scan your new 125kHz (EM4001 card format), non-valid tag (you don't need to open the door, it will scan from the back) and visit http://frontdoor.local:8080 on any linux or mac computer (Windows machines at the time of writing: http://10.100.0.50:8080). Your code will be displayed there, copy from that page into the box on the members site and hit submit. It's important to load the page on the beaglebone before another member scans their tag.
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To get the tag value, scan your new 125kHz (EM4001 card format), non-valid tag (you don't need to open the door, it will scan from the back) and visit http://frontdoor.pumpingstationone.org (You must be connected to the PS1 network). Your code will be displayed there, copy from that page into the box on the members site and hit submit. It's important to load the page on the beaglebone before another member scans their tag.