Part 4 of 4

Tune it

Everything from here happens on your phone.

On your phone, on your home Wi-Fi, open http://skylight.local:3000/control
Add it to your home screen: it's the remote control from now on. Won't open? See Help.
Location: type your address, or tap Current.
Until you do, it shows San Francisco.
Runways: type your nearest airport's code, like JFK or LHR, then tap Enter.
The real runways are drawn, so landings line up with them.
Lights off. Put the projector on the floor, pointing up at the ceiling.
The Yaber, XGIMI and Samsung focus themselves. Lower means bigger.
Calibration → drag Rotation until a real plane overhead and the one on the ceiling move the same way. If it moves the opposite way whatever you do, switch on Mirror horizontally and try again.
Once. It remembers. Lying on your back, north on the ceiling should be real north.

That's it. Unplug the keyboard and mouse. Leave it on all night: the Pi sips power like a phone charger, and the projector uses about as much as a TV.

A projector on the floor pointing up at the ceiling, with the small antenna on a cabinet — Mine: projector on the floor, antenna on the cabinet.

Make it bigger, dimmer, or a different color

On the phone page: Calibration → Radius for how far out to show, View and Palette for brightness, trails and theme, and Sky for stars, constellations, planets and satellites, with a jump to the next Space Station pass when one is coming.

Add the radio later

Plug the radio in, plug the keyboard back in, and press Alt+F4 to close Skylight. Open the Terminal and type the same line as before. It notices the radio and restarts on its own.

curl -fsSL skylightceiling.com/install | bash