Joe highlights his design process and the problems he encountered during the creation of his most recent DEFCON badge.
A series resonant circuit built on a Propeller demo board is utilized in this build to detect the proximity of metallic objects.
This time, we look under the hood of last month's design to see how the mistaIXG hardware and software work together.
Use this board as a platform for your switch-mode projects and experiment with winding transformers.
by Jon Williams
Creating Time-Lapse Video
In the video age, time-lapse movies are not easily produced with a video camera, but as my friend (and VFX wizard) John demonstrated, one can easily create a time-lapse movie with a digital still camera and video editing software.
by Vern Graner
Robotics on a Budget
Most towns have a thrift store or other shops that recycle and resell clothes, toys, household wares, and the like. In many cases, you'll find these stores carry lots of useful electronics that can be picked up for a song.
Getting Started With PICS
by Chuck Hellebuyck
In my January column, I described the I2C form of serial communication. This month, I am covering its cousin — the Serial Peripheral Interface or SPI communication.