This is an ongoing project to put together a simple mining controller for use with the Prospector / Orion, maybe salvage versions too once that gamplay is live. This is Arduino based (Pro Micro) and open source, always looking for feedback/input/collaborators. The wood is temporary, will eventually get swapped out for a dual-color acrylic. I haven't decided yet whether I prefer the slide or rotary for the laser throttle, so it's got both for now. If others are interested, I'll post the BOM/arduino sketch/laser files when it's done. Or possibly put together a small group-buy of the major parts and lasered bits. Some discussion here and on reddit brought up the need for precision. This got me thinking about the coarse/fine knobs on things like power supplies and microscopes, turns out there's a circuit that can do just that with 2 pots (conveniently) the 1st answer here has a good example: https://electronics.stackexchange.com/questions/144530/circuit-for-a-coarse-and-fine-setting-potentiometer As long as the arduino has the analog sensitivity necessary, you could set the coarse power with the knob, then adjust the fine sensitivity with the slider. By changing the resistors associated with each, you can adjust the resolution of the 2 relative to eachother. In the example it's 10:1, so the slider would be ±5% of where the dial is set. https://i.stack.imgur.com/IqdvQ.png