hey guys the only reason I am posting here and not on the arduino forums is cos you guys actually respond.
the project is a simple amp and voltmeter setup using arduino to monitor it. I don't want it to shut it down or anything just to tell me the amount of power left in the batteries. the issue is I have NO idea how to do this.
the system will either be 12 or 24volts (still debating) and I need to hook up an arduino to monitor a few things like :
-charge from panels
-charge in batteries
-load on batteries
the issue I am having is I don't understand how to hook a 5v pin to a 12volt system to read these levels without blowing the arduino.
any help is appreciated
the project is a simple amp and voltmeter setup using arduino to monitor it. I don't want it to shut it down or anything just to tell me the amount of power left in the batteries. the issue is I have NO idea how to do this.
the system will either be 12 or 24volts (still debating) and I need to hook up an arduino to monitor a few things like :
-charge from panels
-charge in batteries
-load on batteries
the issue I am having is I don't understand how to hook a 5v pin to a 12volt system to read these levels without blowing the arduino.
any help is appreciated