Parts List - Tablet- $200: Nexus 7 Tablets (as they support Qi Wireless Charging)
-
ElementalX Kernel. You need to root the Nexus 7 and install this Kernal to get "Tap to Wake / Tap to Sleep" (eg you don't need to grope for the power button).
- Gismo, Kindle, LastFM etc for the apps you want
Parts List - Wall Mount- $50: Qi Wireless Charging Pad (I purchased
these but any 2a version should do)
- $50: I had a local Picture Frame shop make up the Frames. The base board in the frame should be thin but strong (prototype used Laminex, last version used perspex)
- $2: Magnets behind the frame are
20mm/2mm- $1: Magnets siliconed to the back of the Nexus 7 are
20mm/1mmThe power source needed for the Qi Charger is a std 5V/2A Micro USB. My exisitng wiring was 12 Volt, so instead of changing my exisitng 12volt DC transformer, I also placed a 12 Volt --> 5Volt car adapter behind each frame. If you have access to Mains you would just use the Mains --> USB charger that comes with the Qi Charger.
Assembly TipsTake you tablet to the framer to get the frame made to the size you want (unless you are handy enough to make them yourself). They recommended a Matt Finish due to gloss finishes attracting all the finger prints. They did not have a suitable backboard (theirs was all cardboard) so I had to get some from a plastics mfr near by. It was a bit thick so I had to dremel a "pocket" out the back to seat the Qi charger coil into it. If the back board is too think the Qi charger will have problems charging the unit.
You have to dissemble the Qi charger to get the coil out. This was not difficult and mine had some glow in the dark "feature LED" that I just snipped off. I just duck taped this Qi Charger and the magnets on the back. I'd suggest you silicon the magnets to the back of the Nexus first (make sure you measure them exactly so they are in the same place on each unit). Then place it on the frame with the magnets on the back (but not yet fixed) so you can adjust the Nexus so it sits nicely and evenly in the frame, then tape down the magnets behind the frame, then position the Qi Charger coil, make sure it is also charging then tape it down (I used double sided tape for this bit).
You also need good WiFi coverage esp if it is to be used for Video.
ResultYou now have wall mounted but removable tablets that can be swapped between the frames (eg you can have more frames than tablets).