9fe72 - 2y
Looks like hotel keys are just generic NFC cards with their logo printed on them. You can buy the same ones but unprinted everywhere like Amazon. Interesting, though. https://www.amazon.com/programmable-Compatible-Amiibo-Android-Enabled/dp/B0932T1QGC/ref=mp_s_a_1_1_sspa?keywords=nfc+card&qid=1681049787&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyTlpYWVBKSkhLTDFKJmVuY3J5cHRlZElkPUEwNTAzNDg5MlhER0RLVlpaVFNROSZlbmNyeXB0ZWRBZElkPUEwNzQ0NTcxMUdXM0tJWlEyT09QQSZ3aWRnZXROYW1lPXNwX3Bob25lX3NlYXJjaF9hdGYmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl
ae3a6 - 2y
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The Daniel ⚡️ and 84 sats @daniel - 2y
Yeah, you can make your own with any generic NFC card!
f0ff8 - 2y
It's no surprise you can buy a generic writable NFC card but it's a pretty cool "hack" that you can turn a hotel card into one because they don't lock the permissions down - presumably because it makes it easier to write different rooms to each card.
I am not super knowledgeable about NFC cards but, do you think the cards are somewhat rewritable? Or a hotel clerk needs to register specific nfc cards as keys for a specific room when checking in?
It'll depend on the hotel, but if you can rewrite it from your phone it's definitely rewritable. Hotels don't tend to have top end tech teams.
