Airplay For Projectors
I'm researching the use of Airplay to wirelessly mirror my iPad screen to an overhead projector. Some of my research seems to indicate that a variety of projectors offer native support for Airplay. I've also found some wirless HDMI dongles on Amazon that "seemingly" can connect wirelessly to my iPad. (Most of these dongles are also advertized as Miracast compatible.
Here's an example of one projector spec I've copied from Amazon:
Connectivity: HDMI/USB/WIFI/Bluetooth/AV/Ethernet. Compatible with laptop, PC, TV Box, Fire TV Stick, DVD player, camera, BT speaker, Mouse & Keyboard, etc. AirPlay/iMirror/Ushare Wireless Screen Mirroring with Android Phone, iPhone, iPad and Mac.
At the same time, I've been told that Airplay is strictly propietary and that the only option is hook my projector to an apple tv which in turn will be able to receive the Airplay signal from my iOS device.
I'm feeling confused and would like to know some options before randomly purchasing projection hardware and ending up disappointed.
Currently I use a lightning to HDMI corded connection on an older Epson projector. While it works and is reliable the cord is very inconvenient in my classroom setting; and while Epson offers the iProjection app for supposed "wireless connectivity" it is very limited -- it does not support full iOS screen mirroring. So PowerPoint and other screen shots must all by imported into the iProjection app and end up frustratingly handicapped.
iPad Air Wi-Fi