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CriticalLux : The Bike Lamp Project

Being a die-hard bike commuter and aficionados, I decided it was time to equip my bike with proper lighting. I had tried a similar but simpler solution before, but it wasn't enough. The commercially available high end solutions were not only very expensive, but also unsatisfactory. Amongst other things, none provided a rear blinker. In light of this I decided to build my own bike lighting system. CriticalLux as born! This was obviously another excuse to play with the very cool high power LED's. Using three white Cree XR-E Q5 emitters for the front and one red Luxeon III in the back, this bike lamp has a total combined ouput of around 700 lumens. I have also used this opportunity to learn many things about switching regulators, power management, discreet digital I/O communication (HDQ) and much more.

Documentation

1. Controller
   1. Electronics Hardware
   2. Embedded Software
   3. Battery Gas Gauge
2. LED's & Driver
   1. LED drivers
   2. LED's and Optics
3. Battery Pack & Charger
4. Enclosure

Links to Other LEDs Bike Lights

• Ultimate Night Vision Headlamp @ Instructables
  Very nice lamp, simple design, was the base of my first attemp at the DIY LED light
• The "Do It Yourself" LED Bike Light
  As mentioned above, all the credits for the enclosure's design go to him
• http://buttersideup.com/DIYcycleLEDs
• http://www.mouldy.org/projects/High-Power-LED-MTB-Light
• http://www.racedaynutrition.com/Features/bikelight.aspx
• http://www.hyperactive.oz.nf/Lights3/Luxeon3.htm
• http://www.instructables.com/id/Homemade-Halogen-Bike-Light/
• http://www.instructables.com/id/High-Power-LED-Head-or-Bar-Mount-Light/
• http://www.instructables.com/id/Ultimate-18v-Bike-Light!/
• http://www.instructables.com/id/LED-Bike-Light-System/

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