I wired my tree with 500 LED lights and calculated their 3D coordinates.

From the creator

If you support me on Patreon at any point in December 2020 I will film your name on my xmas tree while I give you a thumbs-up of appreciation. https://www.patreon.com/standupmaths Huge thanks to Eugénie von Tunzelmann for helping me out with this video. You can see more of Eugénie in my "General Relativity: Top 05 Mishaps [inc INTERSTELLAR]" video. https://www.youtube.com/watch?v=Z4oy6mnkyW4 Thanks to Ben Sparks for helping out with the GeoGebra file. You can try an online version here: https://www.geogebra.org/m/p2pdz6v2 And of course thanks to Howard Carter for yet one more remix of the Stand-up Maths theme song. The main theme is on bandcamp: https://standupmaths.bandcamp.com/ If there is enough demand we'll make a Christmas album. Here is my code on github (along with the 3D coordinates of all 500 LEDs on my tree). If you have a program you would like to see run on my tree, email me [email protected] https://github.com/standupmaths/xmastree2020 My prototype LEDs were type WS2801 and wired to as Raspberry Pi Zero. The WS2801 LEDs I used on Amazon. Other retailers are available. https://www.amazon.co.uk/dp/B01MDJ3VBC/ref=sr_1_1?_encoding=UTF8&tag=stanupmath-21 I set-up the Pi to run 'headless' (no monitor or keyboard) largely using this guide: https://www.tomshardware.com/uk/reviews/raspberry-pi-headless-setup-how-to,6028.html I followed this guide to wire and program the WS2801 LEDs. If you use an off-the-shelf power supply you do not need to worry about the ma

Published 2020-12-24 · Watch on YouTube ↗
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