Solar panel controler (with buckboost charger) by Tim Nolan

A very nice fellow - Tim Nolan has put a lot of effort in this project and I really like the documentation.

+ Its pretty cheap ~ 50 eur (thats 1/2 price of most 100watt solar-panel controlers with very limited functionality).
+ I control the charging of lead-acid batteries with solar-panels.
+ It have serial output (usb-serial) for data-logging
+ I have a buck-boost functionality (thats nice, read more on Tims homepage)
+ No micro-components.


- Pretty hardcore code (Its advanced code for an advanced controller).
- I have not been able to find some of the core components in EU, so either someone can "translate" components to EU or I would have to order components  from the US.
- No desciption on how to scale project to bigger solar-panels (eg. 250 watt).