2.4GHz Wi-Fi Detector Ring Project

mohrt writes "The Wi-Fi detection ring was developed to give mobile computer users the ability to detect 802.11b/g signals, while providing a unique, fashionable and ultra-portable product package. The prototype circuit collects and rectifies an RF signal in the 2.4GHz range, whereafter an Atmel Tiny microprocessor, detecting the presence of a DC voltage, thusly engages a flashing LED. For those of you who have no excuse to wear a ring, well here it is."

Comments

Lack of range

[fembots]

The maximum detection range appeared to be roughly 40 feet (line of sight), which is not exactly great, but this can likely be blamed on the antenna...

He doesn't mind

However, who would want to detect a Wi-Fi if he's not going to use it? If you're already a mobile user, it might be easier to just use your device's auto-detection software.

I agree that there are times when I wish I could have detected the signal before I take out my laptop, but I usually solve that problem by starting up my PDA first.

should make a watch instead

[Anonymous Coward]

The designers should consider making this a watch instead of a ring. That way they can also design a UI for the watch's display, and you would have more room for bulk on your wrist than on your finger.

Re:The One Ring!

[proverbialcow]

Why don't they invent one even more useful to: ... Detect when a woman has had enough to drink and will sleep with almost anyone

Liability, probably. Sex with someone who is not able to give consent is rape. Legally (though IANAL), a woman who's had enough to drink so she'll sleep with anyone is not sober enough to give consent.