Now you're done! When night falls, go outside and ride in awesome red blinkiness! Comment, rate and vote!
Step 5: Frosting the Bottle
To make the LED diffuse properly, we need to do something to the bottle. I used a piece of 180-grit sandpaper to frost the outside of it, then wrapped it around a metal rod to get in the dimples of the bottle.
Bio:I'm a 17 year old young'un from the Bay Area interested in electronics, mechanics, and robotics. Electronics captain of Team 100 in the FIRST Robotics Competition and interested in cool stuff. I'm k...read more »