On 9/12/2014 2:03 AM, Ruben J=F6nsson wrote: >>> http://web.stanford.edu/~arbabian/Home/IoT_Radio.html >> People seem to be stretching the definition of "Internet of Things" pret= ty far >> these days. "Anything that provides data that could in some way be put = onto >> the internet in real time"? >> >> (nevertheless: an interesting device.) >> >> BillW >> >> > Many IoT sensors/devices requires a gateway where the gateway is the one = that > is connected to the internet. The sensor itself could be a low power batt= ery > opperated SRD using 6LowPan, Zigbee or really any radio protocol. > > /Ruben I have only recently taken the time to look at the links to Arbabian's=20 radio chip, and it appears that the pdf paper itself requires purchase=20 and / or ieee login. I'm particularly interested in the energy=20 harvesting aspect. The chip is supposed to use 1.5 uWatts, but I've=20 seen no info on how that gets harvested from a 2.4 GHz antenna that is=20 1/10 the size of a normal antenna. I can only imagine that the 2.4 GHz=20 transmitter talking to it must be a high power unit, and would require a=20 minimum proximity to the chip. Did I miss this part of the discussion? Are there any links to this info? --=20 Joe Wronski jwronski@stillwatereng.net www.stillwatereng.net --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .