LED
Get flash to fully experience Pearltrees
Now place the edge-lit assembly inside the card-- in front of the window-- with the smooth side of the plastic (not the side that you cut) facing down. Tape it in place, including the battery. Note 1: In the lower picture, there is some green light spilling out onto the card. You may wish to first put down a layer of black electrical tape at that location to prevent light leakage, since it will probably be visible from the front of the card. (Example here .)
Evil Mad Scientist Laboratories - Edge-Lit Holiday Cards
Framed Color Changing LED Art
The screen: I used 4 x 3 piece of scrap translucent white plastic. Velum from the paper department of your local art store works perfectly as well. 5 x 4 matboard frame with a 2" x 3" window: You can get a piece of black mat board cut to these dimensions in any framing store for a few bucks, or cut one yourself from suitable material, such as stiff black cardstock. Battery case for 2 AA batteries w/ wire leads and power switch: These can be purchased online from Jameco, part #216120 , and can likely be found at Digikey.com or Mouser.com as well.
Controllable RGB LED system for your home or office
All good RGB LED systems start with a bit of planning and forethought. This step is crucial in determining your engineering requirements for the system, such as power supply size and number of control channels, as well as how much the system will cost. And don't forget the artistic intent - planning will help you visualize the look of the system and how it will interact with your space. 1. First thing to figure out is the area where you want to add the LED lighting.For this project you will need very few tools and parts, as you will see in the picture below. But for those of you who like it in text, here it is:
Make a Joule Thief - Instructables - DIY, How To, science, offbe
In the examples above, you can see our Evil Mad Scientist "Resist" logo, along with our electronic and sarcastic valentine's day card. There are also closeups on 10 mm pink, green, and blue diffused LEDs, as well as 5 mm white clear LEDs installed in the panels. How do you make it? This project is fully documented, wide open, open source, and you can approach it from any direction you want. Start with the schematics and firmware, or start with a circuit board and a soldering iron. It's all yours:
Evil Mad Scientist Laboratories - "Peggy," A Light Emi