Aviation enthusiast uses Raspberry Pi and ADS-B radio to create viral real-time airport tracker — open-source ‘Skylight’ intercepts aircraft signals and project

Aviation enthusiast uses Raspberry Pi and ADS-B radio to create viral real-time airport tracker — open-source 'Skylight' intercepts aircraft signals and project

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What makes Skylight extraordinary is that it uses its own data collection method rather than simply pulling data from flight-tracking services like Flightradar24. The project leverages an affordable USB radio antenna, in this case the RTL-SDR Blog V4, to capture ADS-B (Automatic Dependent Surveillance–Broadcast) signals emitted by commercial planes, then uses a Raspberry Pi 5 to decode and render them.

The device then sends this information to a 1080p (1920×1080) projector to make the magic happen. Skylight then creates the illusion of the sky on your ceiling, with the airplane in view and various details, such as the model, destination, altitude, and distance to the destination. The project doesn't just track airliners; it can also detect aircraft and helicopters, since Skylight checks flight data to adjust how each plane appears.

Skylight offers a planetarium experience since it doesn't just track the aircraft; it recreates the real sky behind them. The pure black ceiling background not only shows the illuminated aircraft but also displays the sun, moon, stars, and constellations, all rendered at their precise positions for your location and current time, along with live satellite tracking, including the International Space Station (ISS). Paczek lives near San Francisco International Airport (SFO), so the reference build centers on that location, but Skylight adapts to any location worldwide since all you have to do is enter your coordinates.

Skylight is an open-source project; therefore, the instructions and the parts list are available on the project’s official GitHub repository . You’ll need an RTL-SDR Blog V4 with a dipole antenna, a Raspberry Pi 5 (8GB recommended for smooth performance), a native 1080p projector, a micro-HDMI-to-HDMI adapter, and a rotating 1/4-20 stand for the projector.

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