@DrAzzy have you come across a decent way of getting/making a grid to go behind the diffuser? When we did it for the Word Clock it was a bit of a labour - it feels like there must be an easier way!
For this size, a 3d printer comes in mind. Or use a prismatic acrylic sheet with corresponding spacing (1/n of the led spacing). Should be nice without a grid.
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.
@DrAzzy have you come across a decent way of getting/making a grid to go behind the diffuser? When we did it for the Word Clock it was a bit of a labour - it feels like there must be an easier way!