Electronics Projects for Students and Hobbyists
by Lewis Loflin
Introduction - The purpose of these pages is to introduce the student and hobbyist to electronics projects. My hope is generate interest for those thinking about entering a high tech field, or simply to have fun. I've done this since the 1960s and having to overcome a low income household means we have to work smart and use what is available.
This is not about buying some kit that's either expensive or limited in function. I'm talking about being creative and learning to use salvaged parts and assemblies (a great idea in the age of recycling) and for those of limited means as a way to learn self reliance.
First and foremost read this safety warning. Unless one wants to use batteries, the only practical solution is a plug in the wall power supply.
Added May 4, 2012:
Added February 13, 2012
Added April 4, 2012:
Added January 2012: PICAXE Microcontroller Projects!
The PICAXE series of micro-controllers rank as the easiest and most cost effective way to use Microchip processors. I wanted an easier and less expensive way to introduce my students to the "PIC" micro-controller. Here I hope to get those starting out past poorly written literature and lack of simple working code examples.
Added October 22, 2011
Added July 31, 2011
Listed below are pages on power supplies one can build and test. At minimum go buy a digital volt-ohm meter. They are cheap and can be found everywhere from Radio Shack to Lowes. In the You tube video I show how to use what I call a load lamp. This is simply a light bulb wired in series with the project. If one connects something wrong or shorts anything out, the lamp will light instead of blowing fuses or burning things out. It will also give one a quick visual indication something is wrong in order to disconnect the power.
Understand some terms right now: a short is an unwanted connection, while an open is a broken connection. For example a blown fuse is called an open because the electrical path is broken; a short is an unwanted connection such as connecting the positive post to the negative post on a car battery and watching it explode. Yes even low voltage circuits can explode.
You Tube Videos
The next groups of links below go to specific electronic/electrical devices on how to use and test them.
Finally at the bottom are projects using the ATMEGA168/Arduino series micro-controller with many of the other solid state parts we learned earlier. For example we can interface the thermocouple amplifier and an LCD display to the micro-controller to display the temperature in say the flue of a wood stove. Again the idea is modular, small projects that can be built into bigger projects. For more technical details on the Arduino see ATMEGA168 Arduino Micro Controller Projects.
My E-Mail email@example.com Phone: 276-669-0565 if anyone has any questions.
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