This webpage describes a highly efficient LED dimmer, or a dimmable LED flashlight, or a switching current source, or whatever you want to call it.

Crazy detail on this.

LED PWM via the 555 IC.

Small wooden clock with exposed circuitry and veneered PCB boards.

RESTduino is a simple sketch that lets you talk to the Arduino using easy REST-like HTTP requests.

bildr is a community driven site for Artists, Designers, Makers, Builders, or anyone interested in the world between electronics and code.

Video courtesy YouTuber BozkurtTekinTahsin.

In case you didn't believe Louie the Lightening Bug when he said "ya gotta stay away from power lines," consider the fate of this gentle tree branch, who apparently never got to watch Saturday morning PSAs, or at least wasn't paying attention if it did. It screams, literally, for about 14 seconds before bursting into flames like a vampire in a tanning booth.

[via Neatorama]


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If you've ever wondered why there are so many types of capacitors, and how to choose the right one for your project, you should definitely catch the latest installment of David L. Jones' EEVblog. He's got a whole bunch of practical knowledge to share in his wonderful style. I sure learned a lot, even after working with these things for years!

Just looking for a introduction on how to use a capacitor? Check out MAKE presents: The Capacitor.


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: Arduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to softwar

Probably the most popular project this summer was the MIT Disco Dance Floor. The build team eventually released the controller schematics and software. Several other projects spun off as a result of this.

Here is a schematic for a 12 volt power supply.

PyCar, an micro Linux car audio distribution

Create a USB IR Receiver