You are reading a single comment by @allObjects and its replies.
Click here to read the full conversation.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@allObjects
Lexan is stronger - practically unbreakable - and allows you to go lighter.
40A is plenty... full bright - white - pixel takes 0.06A, which means that you could run more than double the planned 300 ones. To simplify your setup, you could have the segments 3 dimensions, like letters that are put up on a storefront.
To go completely contrast safe, think of something like flip-dot - with or without additional LED or split flap design...
...or this I came across a while ago: (electro) mechanical 7 segment display - https://hackaday.io/project/161215-largemechanical-hand-activated-7-segment-display and https://hackaday.com/2019/01/26/7-segment-display-is-3d-printed-and-hand-cranked/ ... commercially available... just not in the size you are looking for... https://www.youtube.com/watch?v=hJ4INheOEjE
- with some modifications... you may already researched this anyway.