What is this thing? @lemmy.world Smatt @lemmy.world 1y ago

[SOLVED] These two identical things I found on a dusty ol' shelf in a classroom

Pencil for scale. Circuit board, 1 USB plug that lights up an LED when you plug it in. Windows doesn't recognize it as a device. Two little metal leg things with "feet".

16 comments

Looks like one of these
- I agree, and replacement parts for a smart board make sense in a classroom.
- Solved! Thank you. You've saved me from my curiousity.
  
  Hi OP, could you edit the title of your post to add [SOLVED] as we don’t have flairs here? If your computer hasn’t crashed of course :-)
FYI. Do not plug random hardware you don’t know the source of into your computer.
- Unless you work at an Iranian uranium enrichment facility, then it's fine.
  
  Haha oopsy, my centrifuges are all wonky.
  
  Have you heard about USB HID devices that have keystroke sequences?
- Good advice, thank you.
dood. don't plug an unknown foreign device in your PC. especially not a Windows PC. It's a common attack vector to leave devices with malware at a site (usually USB dongles, smart watches, chargers or even cables*) you want to hack, so people plug them in where you can't.

*) https://shop.hak5.org/products/omg-cable
- Good advice, thank you.
That's weird. the barcode doesn't cross to any part numbers, but they almost look like wifi adapters. the shape and the weird plastic on it is throwing me off though.
- u/AFKBRBChocolate figured it out. Smartboard replacement parts.

16 comments