For those interested in attempting the slide show option on an iPad as I did, here's all you'll need to do:
- Create images at either 1024 x 768 px for the iPad/iPad 2/iPad mini, or at 2048 x 1536 px for the iPad 3rd or 4th Generation. Make sure they're all the same orientation as you'll not want to be rotating the tablet during the show. For mine I chose tall to better fit the subject.
- Transfer the images into Albums on the iPad. This can be done in a variety of ways, most commonly using iTunes. For mine I used DropBox as it made the process pretty simple and didn't require syncing (which in this case the iPad wasn't syncing to my account). For that I simply copied the images to the Camera Roll, then added them to a new Album on the iPad.
- Configure "Picture Frame" as a way to limit user interference. Go to the "Settings" app and select "Picture Frame" from the top level menus on the left. Select the "Dissolve" transition for digital signage ("Origami" might look cool if you're showing just photos). Set the "Show Each Photo For" to at least 5 seconds if you'll have text on the slides, but you might need longer delays between image changes. Turn off "Zoom in on Faces" as this might interfere with the images you create as signs. "Shuffle" can be nice but means the order of the slides will change. Finally select which ablums will be included in the "Picture Frame" show.
- Go to the lock screen and tap the slide show icon. This locks out the slide show options and doesn't exit with a tap of the home button. I'd also suggest setting a passcode as that will prevent guests from exiting the and playing with the iPad.
How have you repurposed old or existing electronics for Geocaching Events?