Contrail is a device that applies chalk to the rear tire of your bike, leaving a trail behind you. It leaves trails for motorists and other cyclists to see, enabling bikers to “reclaim this crucial shared space.” I’m not sure where you can get one or if it’s even been physically realized, but I like […]
I caught this photo of a rocking bike, taken by Flickr user PavelM, over on Bike Hacks. It appears to be from last year’s design event in Prague called Designblok. This is so much more relevant than a rocking horse, and I’d be in my garage making one for my kids if I knew how […]
Well Happy Pi Day to you! This little video came to me a few years ago via two alumni of my high school technology and engineering program. Math geekery made fun! The Math Forum at Drexel has some good Pi Day activities. if you are looking for some classroom resources for Pi Day, you might […]
MAKE subscriber Dan Wagoner sent us this digital gear indicator project he spotted on the Arduino forums – I did this as a practice project for building a gear indicator for my motorcycle. The idea is that by monitoring the revolution speed of the rear wheel and of the driving pedal I can calculate which […]
From MAKE subscriber Justin Shaw comes the UberLight – a dual LED matrix bicycle turn signal an brake light. An interesting design using accelerometer to determine braking, plus basic switches for indicating turns. The project uses an Arduino in combination with a couple of serial-controlled red/green matrices. Riding with this setup should get some much-needed […]
New from Sparkfun Electronics is the LilyPad protoboard, a way to easily whip up your own sewable electronics. Available in two sizes. This is a large board for prototyping through hole components with the LilyPad system. There are an array of pins all shorted together with 10mil traces. This allows for quick and easy prototyping […]
YouTube user lovelikerobots added lights to a neck-warmer a friend made for him and used a LilyPad Arduino and light sensor to make the lights blink when it’s dark. He’s got warmth, instant bike safety, not to mention style. Via Fashioning Technology.
