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Jul 09, 2010

How To: USB Bike Generator that Charges Your Gadgets with Infinitely Renewable Energy...The Human Body

Final ResultsModern technology has made cycling a fantastic experience - you can plan and check routes with your smartphone, and bring along tiny digital still and video cameras to catalog your experience. I use the great EveryTrail app on my iPhone to calculate routes and speed, but keeping it connected to GPS is a huge battery drain. Wouldn't it be great if you could not have to worry about killing the batteries of these guys whilst on your ride?

Turns out - you can, and power lies in your own two feet. With a little DIY muscle flexing, you can build a USB generator that's 70% efficient in converting your pedals into the energy needed for powering and charging your devices.Final Results

   "The USB Bike Generator is a small bike mounted electricity producing device optimized to provide power for two USB ports.  There are so many small electronics that can be powered or charged from a USB connection it only makes since that people might want to do this while riding a bike.  The basic idea for the USB Bike Generator is to use a suitable stepper motor as a generator and a voltage regulator circuit to maintain the 5 volts needed for the USB ports. "

Totally awesome.

Instructables: USB Bike Generator

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Carol on Jul 21, 2010:

so cool! i'd like to have one of this. i'm gonna try to see if we have this in our side of the world.


Ryan on Jul 09, 2010:

this is brilliant :)