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Make: Easy 1+2+3 Projects by The Editors of Make:

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$5 Smartphone Projector

By Photojojo/Danny Osterweil Illustrations by Julie West

You will need

Shoebox

Paper clip

Smartphone

Magnifying glass with low magnifying power

Pencil

X-Acto knife

Electrical or black duct tape

Matte black spray paint or black paper optional

Slide projectors are great, but outdated, and digital projectors cost a bundle. Fortunately, you can show off your mobile photos and your phone hack savvy by turning your smartphone into an inexpensive projector.

1. Prepare the projector box.

If the inside of your shoe box is a bright color, paint it black or tape up some black paper for best image quality. » On a short side ...

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