Speed Vest

Make a lightweight night-cycling vest that displays your current speed in glowing, 7-inch-tall numbers easily visible to cars.

By Mykle Hansen

Photos by Mykle Hansen, Ed Troxell, Noah Webb

Illustrations by Timmy Kucynda

Code, templates and tutorials for the Speed Vest Project

Step 1. Atomic Salad's excellent ProtoShield assembly tutorial

Step 2. Schematics

Step 3c. EL Wire test code: Test_EL_Digits.pde

Step 4b. Digit template stacked_numbers_template.pdf

Step 5a. Finished project code speedo_4.pde

More Resources

Video of the Speed Vest in action

Mikey Sklar's EL wire project article - this is where I learned how to drive EL wire with a microcontroller


Links

Join the conversation -- every MAKE article has an online page that includes a place for discussion. We've made these RSS and Atom feeds to help you watch the discussions: subscribe.

View our sites
Craft Maker Shed Store Maker Faire Make: television


Important please read

Search the pages of MAKE

Raves for MAKE!

“Now we've got geek DIY (do it yourself) porn. Just as would-be Emerils pore over lushly illustrated cookbooks with recipes involving hard-to-find morels and complicated instructions for roux, Tom Swift wanna-bes are devouring MAKE.”
— Steven Levy, Newsweek

“...O'Reilly Media recently launched what has already become the bible of this new movement, a magazine called MAKE.”
— Daniel Roth, FORTUNE

“If you're the type who views the warnings not to pry open your computer as more a challenge than admonition, MAKE is for you.”
— Rolling Stone

“One of the most innovative magazines I've seen in a long time.”
— Steve Riggio, CEO Barnes & Noble

“The kind of magazine that would impress MacGyver”
— Marcus Chan, San Francisco Chronicle


More Raves for MAKE

Subscribe

Subscribe to MAKE Magazine!