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Posted January 29, 2016 by Chris
"Capacitors are filtering devices with are used abundantly in electronic circuits and applications. There are many different types of capacitors. We will discuss some of them in this article."

Posted January 15, 2016 by Chris
"High Current PWM Halogen Dimmer controller project is designed around SG3525 IC and High current MOSFET. Project can handle lamp up to 5 Amps (10Amps Possible with big heat sink) and supply 12-24V DC .Ideal for Halogen Dichroic Lamp or Halogen Lamp."

Posted January 9, 2016 by Chris
"These are some notes about building a hardware random bit generator. Johnny von Neumann once said that anybody who contemplates arithmetic methods for the generation of random numbers is in a state of sin. What he meant by that is this: if you try to generate random numbers using only software, the results will necessarily depend on the state of your machine at the outset of the process, and are therefore insecure. That is, somebody could conceivably reconstruct your allegedly random bitstream. "

Posted October 21, 2015 by Chris
"The modular robot or toy platform is essentially built off of a chassis that enables the user to add any number of 3D printed toy housings to it ranging from the aforementioned bulldozer, tank, digger toy or anything else that a user wants to program it as using the code that was generously provided by hobbyman."

Posted September 29, 2015 by Chris
"This article will explain how to teardown a FreshRoast SR500 roaster and probably an SR300 as well. If you are looking to modify an SR500 the following content will be useful as well. It will include technical information about the components that make the SR500 work and suggestions of where modifications will need to take place if you wish to split fan and heater control to external dimmers, VARIAC devices, or otherwise control your SR500 with a Microchip PIC, Arduino, or other microcontroller or PID controller device."

Posted May 22, 2015 by Chris
"…project named ‘DIY Led Mood Lamp’ can become a very interesting add-on for your room that’s absolutely sure it will impress everyone. As you can see in the photos, we talk about a color fading lamp, that looks amazing!"

Posted May 19, 2015 by Chris
"A few months ago I had the idea to build a large hexapod using PVC pipe as the legs, wood for the body, and windshield-wiper motors for the actuators. Unlike my last hexapod robot, PegLeg, the middle legs would use 2 motors for lifting, allowing both to be controlled separately. This left the potential for some interesting locomotion if everything came together correctly."

Posted May 9, 2015 by Chris
"Spin uses Persistence of Vision to create the illusion of a cylindrical digital display (computer screen), 12 feet tall and 12 feet in diameter. Vertical columns of multi-color LED (light emitting diode) clusters spin around a vertical axis at 90 revolutions per minute. At a radius of 6 feet, they move at 41 miles per hour."

Posted April 18, 2015 by Chris
"One thing I noticed right away about my property is that most of the time, the wind is blowing. Almost from the moment I bought it, I had the idea of being energy independent by putting up a wind turbine and making some electricity, and later adding some solar panels and a wood gasifier. This is the story of how I did it. Not with an expensive, store-bought turbine, but with a home-built one that cost hardly anything."

Posted April 17, 2015 by Chris
"A small handheld antenna and a simple radio are all you need to get started….Unfortunately the amateur satellite market is very limited so there is no incentive for anyone to produce a low cost commercial az-el rotor system. The Yaesu G-5500 is currently the only viable option. It is a great piece of gear but is quite expensive and the rotor motors run on AC which makes portable option a bit more difficult."
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