This is a project that I have been working on for a few days. Made completely out of scratch. It is powered by a 9 volt battery, and can charge USB devices (including the iPhone) and also has two blue 5mm LED's for a flashlight. Uses the 7805 voltage converter to bring down the 9 volts to 5 volts. The converter can get hot, so I added a mini heat sink I made out of copper enameled wire (not in photo). Two switches, one for converter, one for the LED's. The whole project fits nicely in an Altoids tin.
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| Drilled away hole for female USB port then cut it away with tin snips. Soldered onto the can. |
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| Two switches, one for converter and one for LED. |
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| Messy wiring. |
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| Charging an iPhone 4 |
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| Can light up a small white room easily. |
If you want my specific schematic and more details, just email me.
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