So lets price it out:
Solar panel + charge controller $93
https://www.amazon.com/Traver-Monocrystalline-Renogy-Charge-Controller/dp/B0D59F4MJY
Battery $123
https://www.autozone.com/p/totalpro-battery-24ms-t/1006724
Buck converters $23
https://www.amazon.com/DROK-Converter-Waterproof-8-35V-Adjustable/dp/B0DMP1KCWP?xpid=rdhR9EO5I3SuP
Plus some wires and mounting gear which I'll boldly assume you have lying around the house. About $250. Plus I think the miners go for about $100.
All in all, $350 total but with no solar tracking and no graceful miner shutdown/resume.
You could probably rig up a relay between the battery and the miner that would be held shut by the battery, then when the battery voltage drops too low, it'd open the circuit.
Oh snaps. I just realized the solarbit €600 solar bit doesn't include the solar panels, battery, metal frame or miner! Now I understand why you called it expensive!
Well shit man, want to go into business making kits that are less exppensive and include all the parts except batteries (b/c it simply doesn't make sense to ship big heavy batteries)? We could open source the design and let people choose to DIY or buy something from is that is ready to rock.
