Digital photo frames are great, but when you're using one to display a slideshow, it tends to look terrible when it displays photos in the opposite orientation of how you have it set up. Over on Hackaday, Tim made a frame that automatically rotates to show the best picture.
This project is overkill in a lot of ways, but that doesn't mean it's not pretty cool. It uses a Raspberry Pi to run the slideshow, a discarded old LCD TV for the display and an Arduino to handle the movement. Once it's all together, the frame automatically rotates to match the photo's orientation. Sure, you could just load up your digital frame with landscape oriented photos, but this is a pretty neat little solution that lets you display photos of all types.
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