A mechanical pointer that tracks the International Space Station in real time
This desktop device uses an embedded controller to track the International Space Station as it orbits Earth. By physically pointing toward the station, it serves as a tangible reminder of human achievements in space exploration that are often overlooked.
The prototype utilizes an ST Microelectronics Nucleo F401 development board to calculate orbital mechanics. It runs a ported version of the SGP4 model to determine coordinates, driving a stepper motor for azimuth and a servo for elevation. Because the station completes an orbit every 90 minutes, the device moves at a pace similar to a clock's minute hand.
Beyond its current function, the design offers potential for broader applications. Proposed extensions include tracking cubesats for educational settings, mounting amateur radio antennas, or creating large-scale outdoor art installations. The project highlights how engineering can bridge the gap between abstract orbital data and our physical environment.
