Today another big milestone of the project has been reached: I received the final PCB layout and routing for my solar UPS controller! Below is a 3D rendering of the front side of the PCB which shows most of the digital components and the cable terminals. The backside holds all the bulky parts like transformers and heat sinks.
I was outsourcing this part of the process to an expert which I found on the freelancer portal oDesk. Next step in the process will be ordering a small batch of 6 assembled boards which will go out to the beta testers which already signed up with me.
Extend One-fridge-off-the-grid and hook it up to the internet
If you are a hacker or like to build your own devices you can go beyond the intended use of pulling your fridge off the grid and extend the board with your own ideas!
Using the free Arduino IDE
In the upper right corner there are connectors of the Arduino Proto Shield which enables usage of this board with to dozens of other boards. A few examples of these plug-in boards: Wifi, Ethernet, Bluetooth and lots of other technologies. About the proto shield:
The Arduino Prototyping Shield makes it easy for you to design custom circuits. You can solder parts to the prototyping area to create your project, or use it with a small solder less breadboard to quickly test circuit ideas without having to solder. It’s got extra connections for all of the Arduino I/O pins, and it’s got space to mount through-hole and surface mount integrated circuits. It’s a convenient way to make your custom circuit and Arduino into a single module.
The board will be supplied with an ATmega 2560 processor which can be programmed with the free Arduino IDE.