For the light source I used an LED puck light connected to a USB cable so that I can have it near my computer. The light cast through the lampshade is not overly bright but it makes for nice mood lighting.
Step 1: Materials and tools
- Old or unwanted keyboard
- Light and power source ( I used an LED puck light connected to a USB cable)
- Metal tin
- Clear packing tape
- Hole punch
Step 2: Measure and cut the sheet
- Dismantle your keyboard and extract your circuit sheets.
- Roll the sheet into a cylindrical shape and fit into your base.
- Mark where the sheet begins to overlap and cut off the excess
Step 3: Tape
Step 4: Prepare light
- If you have never made a USB light before simply strip the end of the USB cable that is not connect to the computer.
- You will have four wires inside, ignore the white and green ones (you can just cut these off), the red is positive and the black is negative.
- Since the voltage from the cable is 5V and my puck light uses 3V a resistor is required. Use http://ledcalc.com/ to assist you in finding the right resistor.
- Connect the positive (red) wire to the resistor and the resistor the the positive part on the light then the negative(black) to the negative. The light should now work.
Glue the light onto the base of the lamp.