• April
  • 1st
  • 2008

26 Channels, 26 Years

One of my lab-colleague friends Ryan created 15 images for our Ember Zigbee devices to run on all the channels up to 26. We jokingly attributed it to my 26th birthday today, as well as an April 1st joke. Anyways, I prefer to regard it as my birthday cake and its candles :-)

Here is a screenshot of the Wi-Spy readings inside our Faraday cage.

15 Zigbee devices running on separate channels in Faraday Cage

  • January
  • 6th
  • 2008

Google Maps Mobile “My Location” feature, how does it work

Google Maps mobile has been one of my favorite applications from Google. Recently they added one beta feature to it which is a milestone for the Google Maps Mobile (GMM). They have added the ability to find your approximate geographical location solely based on the data that your cell phone receives from base stations. This is really nice since once you know the approximate location, you can guess the details yourself. Also, each time you don’t need to enter your own address before searching for the destination address.

Google Maps Mobile with My Location

It has been an interesting case to find out how they do it, and by how I mean the general implementation idea and not the theoretical foundations. I post here my current understanding of the implementation, which may be lacking some parts. I hope I can update this as I gather more information. Read the rest of this entry »