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The Solar Power Expert Blog

Introducing the v4 Charge Controller

Wednesday, March 21st, 2012

This article covers my latest efforts in the Free Charge Controller project. I’ve been working with Jameco to create a development kit for a new version (v4.01). The development kit that Jameco will soon have available for order is a huge step up from my original efforts to build a kit. The design is built on top of an Arduino and is based on Tim Nolan’s design. A charge controller schematic of the design is available.

Manufacturability of the New Free Charge Controller Design

Sunday, September 11th, 2011

My proposal for the DIY Dual Voltage Converter design for the Free Charge Controller project generated some good feedback. This post is a copy of the one of the replies and focuses on the manufacturability of the two designs and some of the different aspects of the two designs.

04/21/2011 Update on Free Charge Controller

Thursday, April 21st, 2011

A hacker of the free charge controller asked me about the difference between version 2 and 3. I answer her question in this post.

Update on v3 Free Charge Controller Board 3/24/2011

Thursday, March 24th, 2011

Now that the sun is starting to poke its head out more often, I’m feeling more inclined to jump back into the Free Charge Controller project. I managed to populate and test the two v3 prototypes I had made up. I can’t remember if I sent an email to the mailing list or not about that or not.