‪@ModernUkrainianHomestead‬
I am amazed. No issues, it just works as the book states it should work.

blue controller - https://s.click.aliexpress.com/e/_DCh...
green small controller - https://s.click.aliexpress.com/e/_Dmg...
DC-current measurer on-line - https://s.click.aliexpress.com/e/_DEA...