Some time ago with help from the community i was able to finish a project for my friend who wanted to monitor a solar water heating system. At the beginning I wanted to make some analogue circuits to be able to read the temp sensors in parallel with the system but ended up with sniffing the data exchanged between the system and it’s main display. It was all described here: http://www.tinyclr.com/forum/1/3035
Right now the same friend want’s to add online monitoring of his solar PV panels. From what i know he has 24 PV panels connected in 2 series of 12 panels. I have attatched the voltage and current table.
My question is what are your suggestions of monitoring the current and volatage of this system?