Have you ever wondered about all of the different batteries on the market these days? Urban legends about batteries?? Are you suppose to drain them completely before you charge them or charge them after every use? Would you like to build a smart battery charger to charge the your batteries just enough so you will not fry them? When would you use nickel-cadmium over nickel-metal-hydride? Why would you want to
I am a huge Tesla fan. Anytime I read anything about wireless power applications I get very excited. Coils and resonance frequency drives me nuts. Check out bea.st’s web site: On the main page is one such project that deals with Magnetic Levitation using Hall effect Sensor Feedback, and Matched resonant wireless power transfer Check out the video links right under the first image. Detailed information and schematics are listed
Here is a cool project that you can build from a few parts that will allow you to power fluorescent lights with a 12 volt battery. This low cost project even teaches you how to wind your own transformer from salvaged parts. This link is from a interactive electronics e-magazine stocked full of electronics projects and tutorials. There is also a basic electronics course and micro-computer programming course that can
Teamcynergy has come up with a Laser Beam activated Paintball Gun. It is constructed using a Parallax Basic Stamp kit purchased at Radio Shack. This project truly demonstrates that you don’t need tons of equipment to build something that is very interesting. “Watch as this machine gun senses someone in its path using laser and fires relentlessly when an object crosses its path. Watch the making of on www.teamcynergy.com
By adding a microcontroller and some white LEDs this normal everyday clock is transformed into a very interesting and unique clock. “KapteinKUK have modified his wall clock by adding 12 LEDs controlled by ATtiny2313 microcontroller. LEDs are flashing randomly driven patterns with some variable intensity driven by PWM channel.”
Babblin5 created a simple way to save some of your heating costs this winter. For the effort needed this project sounds like it would pay for itself in a about a week of operation! “Create a cheap and green solar heater for less than $10. All you need is foam board, lots of pennies, black spray paint, and plexiglass. The assembled product should be placed next to a window
Funny to see something old made to work with something new. This LEGO NTX Gramophone plays records! “On January 2007, I purchased my LEGO Mindstorms NTX, so I started to create some proyects with it. I found NTX makes easier to create projects using fewer parts.The Gramophone is ready. I have some old vinyl disk that I enjoy to listen with it. I even have a recording when the man
