Off grid AC circuit control dependent on DC voltage

Products
#1

Off-grid Electric System

I want to be able to open/close AC circuits based on the voltage of my DC storage system.

My current system is 12V DC and 120V AC. My future plans will be to have a 48V DC and 120V/240V AC.

Ideas? I am new to off-grid applications but realize that control systems are absolutely necessary to design an optimal system.

My fist application is for a charging station for my cordless tool batteries. I only want them to charge when the voltage is 12.5V or higher…refrigeration is the priority, tool batteries are a lower priority.

#2

to monitor the DC voltage you can use this board


to monitor the AC voltage you can use this

to open/close ac circuits you can use a relay board.

Thanks

#3

I am very new to this. What hardware/software do I need to program the voltages at which the relay will close and open?

#4

You can use the above mentioned hardware with an arduino


You can find all the code sample over here

Thanks

#5

What would I need to program via Bluetooth on my iPhone?

#6

You can use a bluz module and build an app using blynk.