Just an update. Yesterday I got the little projector I ordered:
"270° Adjustable Stand & Electric Focus]Mini Projector with WiFi and Bluetooth, 2025 Native 1080P TOPTRO Portable Outdoor Movie Projector, Auto Vertical Keystone, Home Projector for Phone/TV Stick."
Amazon had an $80 off coupon, so the grand total, shipped to Thailand, including import and duty fees, was about $164.
I'm getting ready to move, so I just played around with it a little, casting it to my white ceiling at an angle.
Set up was fairly easy, so long as you have your wi-fi password. But then it took me a while to figure out how it all worked. And it was finicky, at least in terms of how I wanted the setup to work. Theoretically, so long as all of your devices are on the same network, they can all work together. Apple TV for the picture, which is then sent to the projector via screen mirroring, while the sound plays through the sound system of the Apple TV. But that was on again and off again. Maybe the signal wasn't strong enough, or maybe I had something set wrong. I'll have to try again later. I finally tried Airplay from my iPad, but that was also finicky. One minute it was connected, and then it would disappear.. When it worked, it worked, butt not for long. And the sound was coming from the small speakers on the projector.
I finally settled on trying the wired approach. from my iPad to the projector via the supplied HDMI cable.
That worked the best, after I fooled around and looked for the proper adapter. USB. to Lightning.
The picture quality wasn't bad. Not the best available, obviously, but decent, and it would probably be much better with one of the special screens made fr that purpose, which can range up to 150 inches.