How to build your own soldering iron controller for amazing Hakko T12 tips.

Story
First, there was an idea
When I was surfing the Internet for interesting projects, the handmade soldering station project touched me very much. The project, at the same time, was not really complicated, well-documented and very useful. I used a generic soldering iron without any controller and could not imagine the difference between the generic iron and this one. So it was brilliant idea to create own controller to try it out.”

Link