This projects implements a peak power charger for lead-acid batteries. It is inspired by a very similar project for the Arduino platform by Tim Nolan who has extensive documentation on his website www.timnolan.com
In addition to Tim Nolans project, my design makes the current measurements (battery voltage, solar voltage, solar current and solar watts) available via coap resources.
I'm also making kicad drawings and board layout available, see the kicad directory. Note that the board was never manufactured so far, I've built a breadboard. The breadboard design is in an inkscape drawing with several layers in layout.svg.
Ralf Schlatterbeck