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How to Build The Ultimate Smartphone Projector

Smartphones are fantastic tools for showing off our work, watching movies, or even playing games. Their “big” problem, though, is that their screens are rather small. This means if you want it bigger, you must connect it up to a TV or use a projector. Projectors for phones have been on the market now for a couple of years, but most of the decent ones are quite expensive. So, why not make your own?

This video from Matthew at DIY Perks shows us how to build our own “Ultimate Smartphone Projector” from scratch. Matthew first shows us a more traditional DIY smartphone projector. But that type of projector has some issues, which Matthew highlights. Those problems are solved with his rather ingenious periscope-style design.

In this video we will be making a really well designed smartphone projector that stands head and shoulders above most others out there! It really is quite splendid.The more familiar DIY smartphone projector that many of us may be familiar with is simply a shoebox with a magnifying glass. Inside there’s some support to hold your phone, that you might be able to adjust to be able to focus.


With everything assembled, the lens in place, and your phone on top, it’s simply a case of positioning it and focusing it on your wall. Thanks to the mirror, everything flips the way it should be. You’ll want to ensure your phone’s screen is at maximum brightness to make the projection as bright as possible.