Ooooh, I hadn't even thought of digging through old electronics for those batteries. Great idea! That might end up being my weekend project! 😁

I have a couple other projects in various stages, though the next one is likely going to be raspberry pi based instead so it can perform some more functions, like a camera.

No, nothing with the 3d printer yet. I'm still in the embryonic stages of learning how to best use it, and my 3d modelling skills are still in the 2d stage. 😂. But I do definitely want to do something. I've had in my mind for some time building a candy dispensing machine, and I think an arduino and a 3d printed contraption would be a neat fit. I just need to learn Blender.