I used uLisp to program a really small microcomputer for a hobbyist rocket project. Essentially it collected telemetry data, sending it back to my laptop, and a

I used uLisp to program a really small microcomputer for a hobbyist rocket project. Essentially it collected telemetry data, sending it back to my laptop, and activated a locator beacon when it knew it landed. Good fun to learn but it was still slightly too large for the boards I was programming - I assume it'll be a lot better on an Arduino or something with a decent amount of memory.