Hi at all,
first of all i'd like to say sorry for my bad english; is difficult to explain what I want to say so i apologize before starting!
I hope that this is the right forum section;
I am a computer enthusiast and i already have my weather station online (with wview@raspberry, including in home temperature & humidity).
Now i'd like to control domestic consumption and the production of photovoltaic panels.
so i need your help!
short introduction: i hate wireless connection so i want to use only wired connections!
Let's start with photovoltaic panels:
i have 3 inverter (three-phase); for monitoring the production i need only 1 "100A max clip-on current sensor CT" or is better to use 3 of them (1 for each inverter)?
Now my question: is possibile to use the EmonTx V3 with raspberry via wired removig RF module?
Meanwhile, thank you!
Soon i'll explain my other ideas :)
Re: help buy the material to start my project
About i found this thread:
http://openenergymonitor.org/emon/node/3797
so i suppose it is possibile...it is right?
Is difficultj edit the emonTx firmware to output serial instead RFM?
Re: help buy the material to start my project
If the three inverters always give the same current, then you only need to measure one. If they each give a different current, then you must measure all three. But remember the three voltages must all be identical too, otherwise the power you calculate will be wrong even if you do measure the three currents, unless you measure all three voltages - and that means 3 x emonTx or an Arduino and this: http://openenergymonitor.org/emon/node/2674
I think you will find how to connect an emonTx to RPi here: http://openenergymonitor.org/emon/node/3872
Re: help buy the material to start my project
Hi,
the inverters have same voltages (+/- 2%) but different current.
3 of this: "100A max clip-on current sensor CT"
1 raspberry pi
1 emonTx V3 - Assembled PCB
1 RFµ328 noRF - Arduino Compatible MCU - RFM12B ready
should be enough?
Thanks in advance