Living in a city, I use my bike as means of transit, riding from home to work, work to studio, errands, etc. When I ride at night, I am often concerned if other vehicles/people on the road can see my hand signals when I am about to turn. To make my night rides safer, I decided to build a turn signal system for my bike!
The following instructable will go over how to use a 555 timer to flash an array of LEDs, and how to mount LEDs in an acrylic panel, and cast it in resin.
Step 1: Materials
Turn signal and circuit housing
bike handlebar wrap
angle grinder/palm sander
Step 2: Assembling your flash timing circuit.
Please reference the attached fritzing file for the construction of your circuit.
You want to mount the 555 Timer IC so it straddles the center of your proto board. Solder into place.