Picture of Go Green Sign for bikers backpack

I have been cycling to work for almost a year now. Reason for doing this was to get some exercise and do my bit for the environment.

Everyday on my bike I used to think of ways of making myself visible [especially during the night]. Normally, bike riders [including me] use one of the readily available options, which is buying a pair of bike lights. But I wanted to do something different.

So, I came up with this idea of creating a sign that can be stuck on my backpack, making me visible and also help me in advertising/reminding people one of the better ways to commute - cycling.

This is a very simple yet effective project which can be done without the need of any complex electronics.
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Step 1: Things Needed

Picture of Things Needed

- White translucent plastic CD case for holding single CD with top plastic film
- Green flexible LED strip with sticky tape on the back side [approx. 2 feet]]
- 9 V battery
- Battery Snapper
- Switch
- Insulated wire
- Solder gun
- Solder wire
- Picture on black sticker/vinyl paper
- A4 OHP [overhead projector] sheet
- Nylon String
- 4 Badge clips
- Scissors/Blade

Why I picked up CD case for this project?
I wanted something which can diffuse light evenly and I found that white translucent plastic CD case is very good for this. More over the sleekness of the CD case makes it right candidate for this project. Also, diffusion of light is better in case of single CD case verses double, since the latter has got additional circular mount to prevent this diffusion
agis683 years ago
liked the design....your little sister gonna spend some hours before discover her favorite DVD cover on your bike...where you get the led strip and what size?
ramhardikar (author)  agis683 years ago
LED strip is about 2 feet long. These are easily available in local electronic stores here in India. They sell by meter .
lemonie4 years ago
How long does this run on a 9V battery?

ramhardikar (author)  lemonie4 years ago
I am in the process of testing this out. I have been running this everyday for about 30mins since 20-Feb
That sounds good. L