best soldering iron for your dollar, for 50 CDN on ebay pick on of these up. works great at 230C with the custom firmware hardly any smoke and you dont need acid paste to solder stuff.
connect to usb and copy hex file to drive wait for it to reboot then unplug and plug back in to get access to extra features.
I was able to compile but when flashed it came up blank screen. not sure what the issue was yet but the precompiled releases work fine.
went from 20 to 100 C in seconds its very nice. would be really nice to get a battery pack attached to it somehow maybe 3d print something.
very professional and comfortable soldering iron with lots of features like motion sensor, auto off and sleep modes.