We know what you’re thinking. There’s no way an 8 watt USB-powered soldering iron could be worth the $5 it commands on eBay. That’s what [BigClive] thought too, so he bought one ...
A soldering iron by Pine64 ... or just used a regular 20 V USB-C brick, and the FUSB302 would die. Sometimes it would die quietly and make the iron only work through barrel jack or QC; sometimes ...