Remember the article about the Eye-Fi card i wrote in November ? It should be pretty interesting to see how the card look inside, because since i first saw its picture i wondered how does it look inside. You can see the Eye-Fi card dissecated over at IkonTools.
Inside the Eye-Fi Card: [Link]
These days RF capabilities are present in almost all embeded applications and by RF i mean wireless transmission of data. The receiver and transmitter boards (RLP & TLP 315) for this project are cheap RF modules manufactured by Laipac Technologies. The frequency on which the receiver and transmitter pair works is 315 MHz, UHF (Ultra High Frequency) frequency range. The transmitter works from 2 V to 12 V and the receiver from 3.3 V to 6 V, the author supplied it with 5v in his circuit.
DIY Wireless receiver and transmitter: [Link]
This is my first movie on diy stuff. Movies are a much better way to teach people on doing stuff because they can see the details and watch the steps in the movie much easier than reading some boring text. In this first movie i am teaching you how to increase your wireless signal strength using just a soda can. Here is how it works: the shape of the can and the materials that is made from concentrate the signal and this is how you get an increased signal. Good luck building it.