LilyPad Arduino Blinking Bike Safety Patch

Step 6 Affix with Velcro

I decided to affix the entire circuit patch with velcro instead of sewing it down to my bag, with air travel in mind specifically. It's easy to remove, inspect, and replace. I live in Arizona, so rain isn't too much of a concern, but it should also be removed during rain. You can choose to just remove the battery, as the rest of the circuit won't be damaged by water, so long as you wait for it to be completely dry before plugging the battery back in.

Sticky-back velcro is easier, but any kind will do!