A transparent OLED over the compass paired with a book or phone is all you’ll need.
Oh, sure, I was commenting in general. Transparent OLED is probably great for a touch device with symbolic display like a compass rose as you specify.
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Now you’ve given me an idea.
Suppose the “compass” where an augmented reality device on your wrist? It could have a tiny camera module on the back of your wrist, a smart watch oled, and voice control.
Perhaps rooting the software stack of a cheap smartwatch is the way to go (though the camera would need to move):
This way you get all you need with just this and a small book. Each page has active AR areas with compass, etc. The maps are active. Point to a room and say, “go here.”
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