LiFePO4 ESS Update - No more computer needed

After several weeks of testing, I finally unplugged the computer from the Arduino board and my LiFePO4 ESS is now running in standalone



The laptop computer is gone ...

Arduino board and Relay activated outlets

Grid Tie Inverters stack and Generated Power (in Watts)

Karotz is watching Wattson :-)
I can see our home Net consumption it anytime through its webcam when I am not home or upstairs 

LiFePO4 Battery pack voltage and Wattson Energy Monitor showing Net consumption  

Cell level voltage watching & Arduino board unplugged (except for power from the micro USB connector)

And the Wattson Professional graph shows that it is working well, following the usage and trying to minimize it using battery stored energy whenever necessary (last long test was from 19:00 to 22:00)

LiFePO4 ESS update - 24V relay & Arduino board

My 12V automotive relay for the charger line is not really the right component to carry 24V @ 10A and is heating up a lot, got stuck few times, so I decided to buy a 24V one, and it arrived 

More important, following my work on getting color codes from Wattson, I ordered an received an Arduino Leonardo card and 3 high voltage relays

This board will read the voltages from green, blue, red Wattson LEDs as inputs, and using a program, trigger signals on the outputs to activate relays, switching ON & OFF my Grid Tie Inveters

Nice packaging

It is smaller than I tought