Slashdot Mirror

← Back to Stories (view on slashdot.org)

2.4GHz Wi-Fi Detector Ring Project

Posted by CmdrTaco on from the check-out-my-bling dept.

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."

2 of 248 comments (clear)

  1. Don't forget microwaves... by PMJ2kx · · Score: 4, Informative

    From the article: "Due to the simplicity of the circuit design, the prototype unit does not discriminate between other sources of 2.4GHz RF, eg. "leaky" microwave ovens, cordless phones, etc. Future production units would feature surface-mounted components to decrease the detector profile and microcontrollers that discriminate between other RF sources, as well as indicate whether the Wi-Fi nodes are open/closed/encrypted, etc."

    Yes, but they're going to fix that.

  2. Three rings by rlp · · Score: 3, Informative

    That'll look real nice right next to my Java ring. :-)

    --
    [Insert pithy quote here]