LED roof

For D-Exto I was asked to build/repair an LED roof. What they had didn’t work because of very long signal wires and because the old builders underestimated the voltage drop caused by the large currents required to drive 8640 individual leds at 5 volts, (about 170 amps, theoretically).

With a team from my school we took the old roofs apart and rebuilt it with heavy copper strips, 25mm² cables, and microcontrollers embedded in the roof itself. I added a wireless receiver in there as well, to be able to have the panels react to music.

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