that will be incredibly easy i think.
2250 mah. relaxed cpu around 350ma. heavy cpu goes up to 800. grid adds about 150 (reasonable number of LEDs lit). wifi nub 80-120ma. most midi things i tried were negligible current, less than 100ma. so you could be maxing it out and get under 2 hours, or using it as a stompbox only and get up to 5 probably?
i’m hoping to have some tutorials out around ship time. lua is really straightforward. many of the tutorials dive pretty quickly into more difficult territory that isn’t completely required. so i’d try not to get discouraged when you see a bunch of things that seem utterly unnecessary in existing tutorials. my goal will be (like teletype) to show what you need to know in order to do musically interesting things with minimal code.