TechNoviceTools — Processing & Simulation
LightWrite
Communications from the Upside Down.
One bulb. One letter. One message at a time.
p5.js • S.P.A.R.K. • TNT 2026 • Original concept: David M. (2022)
What is LightWrite?
In Netflix’s Stranger Things, a boy trapped in a terrifying parallel dimension communicates with his mother through a string of Christmas tree lights — one letter at a time. His mom paints the alphabet on the wall, and a bulb next to each letter flickers on when he wants to spell something out.
LightWrite recreates that idea as a two-way p5.js simulation. In Human mode, you type on your keyboard and watch the corresponding bulbs glow. In Claude mode, the AI — stranded in its own Upside Down — autonomously spells out TNT coding wisdom, one illuminated bulb at a time.
Under the hood, this project documents two important fixes over the 2022 original: a push/pop bug that caused glow effects to stack in the wrong positions, and a canvas aspect-ratio error that compressed the background image. Both are covered in the S.P.A.R.K. chat log.