Inductor-Free Driving of Single/Two Cell White LED

The project allows a white LED or UV LED to be driven from one-cell or two-cell batteries without the use of inductors.

Laser Pointer Using Blu-Ray Technology

The project utilizes a Sony Blu-Ray replacement drive assembly for the PS3 to build a Blu-Ray laser pointer device.

Dynamic Tiled Display Known as Puzzlemation

An 8x8 array of color LED pixels is contained in the project’s display that is made up of 2” square tiles wherein each tile is animated and powered for freely picking and rearranging them.

LED Flashlight with Long Power/Life

The project uses a slightly more complicated circuit to produce a flashlight made from PVC while employing ultra bright LEDs with ballast resistors and extending the battery life by over ten times.

LED Flashlight with Rechargeable Capability

A high intensity red jumbo LED is being used on this project as the rechargeable flashlight provides a moderate source of light that will always be available without the need to replace batteries of change light bulbs.

LED Light Chaser Circuit

For advertising and promotion, light chaser circuits are used to produce lighting animation sequences to attract attention like the movie theater marquee.