Wednesday, 29 August 2012

Maker Faire (DIY)

Maker Faire is an event created by Make magazine (USA) to "celebrate arts, crafts, engineering, science projects and the Do-It-Yourself (DIY) mindset" I wanted to have a backup power source for my iPhone and iPad that was independent of other power sources and sustainable and renewable. The reason being that when I'm in a remote area I have an unlimited and renewable power from something that packs away small and is easily transportable.

So off to the local Jaycar I went with my design and collected the parts I would need.
1 x 5 Watt solar panel is about 10 inches or about 25 centimetres square.
1 x solar power regulator
1 x 12v rechargeable sealed battery (as small as capacity required will allow)
1 x 12 v power socket

So with soldering iron, wire and a hot glue gun I set about this little DIY project. I lay out the parts inside the back cavity of the solar panel, hot glue them in, wire it together. The battery forms a great stand and balances the panel nicely. The guy in the store, more familiar with Ohm's Law and voltage calculations than me did the maths for me and I believe:
The solar panel will charge the battery from flat in about 8 hours (if sunny).
The battery must put out at least 10 Watts to charge the iPad (iPhone needs 5 Watts)
The battery is more than sufficient to charge a flat iPad x 3 times.
Topping up the battery each day with the solar panel will keep the battery at full capacity and keep me with ample power.
Test one insert a volt meter to see if there is power? yes.
Test two connect the iPad with 12 v car connection plug and USB cable? yes
All works fine and for less than a $100 and fits in a laptop bag or similar. Hmmm maybe I could use a fuse in there somewhere???
iPhone 4
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 iPhone 4
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iPhone 4
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 iPhone 4
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 iPhone 4
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 iPhone 4
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1 comment:

  1. Really good post! Hope there will be more good post here!Thanks for sharing valuable information.solar power

    ReplyDelete