A crash course in changing the world.
Bike-powered MP3-Player
2 years back, a friend of mine helped me power my sansa mp3 player as i ride my bike.
i realize this is not going to get me runners up for most beautiful invention ever, but it worked (at least till someone ripped it off and stole it).
we tried to make it waterproof by using the casing of a spare usb charger cable, split open the plug, removed the usb part, reconnected the wires and put the metal tubing back into the plug and connected it to the dynamo powered lighting system. (still doubt it ever was waterproof)
obviously, the power generated by me cycling was a lot less than that made by a power outlet, so it charged a lot slower - i dont think i ever fully charged it during the weeks i had it.
but this way, i could ride with my mp3 player charging in my pocket. However, when i turned on the lights (by connecting another cable at the base of the dynamo) neither of the systems got enough electricity to work, so i couldnt drive at night.
this is the only pic i have of it, but the system worked well, at least for something you did with your friend on a boring afternoon using only a spare cable, duct tape and a screwdriver/pliers.
Views: 81
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Comment by RD on March 21, 2010 at 4:58pm -
Excellent:) Definitely worth +1 for resourcefulness. I'm so thoroughly impressed and excited that this could be done. There are tremendous possibilities for developing this prototype into full scale applications especially now that cycling has re-emerged as the thing to do in most places in Europe while it is still seen as a necessity in places like India and China. So I see this more like a mass market application which can be developed.
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Comment by Mita Williams on March 23, 2010 at 5:21pm -
Great work - so sad it was stolen. +10 for resourcefulness!
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Comment by Jan Lampe on March 23, 2010 at 10:44pm -
unfortunately i have two left hands and could not have built it without my friend... but i am glad you like it.
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Comment by Benedikt Foit on March 25, 2010 at 11:15am -
great idea!
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Comment by Hayden Darrell Linder on March 26, 2010 at 5:14pm -
That is pretty original. Good one.
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