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."