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The normal way people get help is through these forums. If you're prepared to persevere, we can probably get you going.

Your emonTx V3, current transformers and temperature sensor should work straight away. If you do not have the ac adapter or batteries, you need a separate 5 V USB adapter to power the emonTx, otherwise it will only work while it is connected to the programmer and your computer.

So your first step is to install the Arduino IDE on your computer. If you've got emonCMS installed, you clearly know what you are doing there so just follow the instructions here: http://openenergymonitor.org/emon/buildingblocks/setting-up-the-arduino-... When you have done that, you should be able to connect to your emonTx and see some output from it. It should have a default sketch ready loaded that will work as soon as you connect it. That will assure you that at least the measurement part of it is working. We'll test the radio part with the NanodeRF.

Next you need to program the NanodeRF. First, try the test sketch attached. It makes no attempt to send data via the Ethernet, but it will prove that it can receive transmissions from the emonTx. You'll need to look at the sketch and set the radio frequency in software to match that of the emonTx (and the NanodeRF will be the same - it must be) in the line like this:

#define freq RF12_868MHZ

Then load it into the NanodeRF. If you get a green flash in time with the flashes on the emonTx, then the radio is working and you will see the numbers in the serial window.

Try this so far and let me know how you get on.

Hi Robert,

thanks for the answer.
 

as i mention, i have been able to setup emonCMS server on the local LAN. 

when i try to load the attached ino file i get an error message:

Ethernet has not been declared.

it is the same error if i load the recommended file from here:

http://openenergymonitor.org/emon/emonBase/NanodeRF

the first one, multinode.

do you know what could be the problem?

thank you.

Rather than waiting for Robert,

 Have you opened the sketch in a text editor ?

As there are some settings you will need to add to get it working

Step 1, Can you confirm that you have downloaded the following libraries and that they are in your arduino library folder, and that you have restarted the Arduino IDE?

  Libraries in the standard arduino libraries folder:

- JeeLib  https://github.com/jcw/jeelib
- EtherCard  https://github.com/jcw/ethercard/

Step 2

Can you confirm that you have added the IP address of your server and that you have changed the line:

boolean use_hisip = false;  to boolean use_hisip = true;

Step 3 

That you have added your Emoncms API key.

Steps 2 & 3 don't apply to my Basic RX Only sketch, because it has no active Ethernet communications. It will not even attempt to communicate with emonCMS. The purpose of that sketch was to prove the RF was working without the confusion of simultaneously trying to get the Ethernet side working as well.

Hi Robert,

i don't understand: if we don't setup the IP address, how can we verify that there is communications between TX and RF?

Hi ukmoose,

I have not opened the sketch files in notepad, i open them in Arduino

i also found that Ethernet libraries are inside Arduino folder.

i'm a little lost here.

could someone compile me a Sketch, that i can load into the board?

i'll provide all settings.

as i mentioned - i'm happy to pay for it (within reason)

please send me an email if interested: eshilov@gmail.com

"i don't understand: if we don't setup the IP address, how can we verify that there is communications between TX and RF?"

As I wrote "If you get a green flash in time with the flashes on the emonTx, then the radio is working and you will see the numbers in the serial window."  The Radio does not depend on the Internet connection, but the Internet connection not working will reset the NanodeRF continually and confuse you.

I want you to run that test sketch so that you can see if the NanodeRF is receiving the data. If that is OK, you edit the multinode sketch and put the same settings that worked for the radio into that, then you can be reasonably sure the radio will work. Then you can change the setting for the Internet to get that to work.

The Arduino IDE does include a text editor, so it is OK to use that to change the settings in the sketch.

Hi Robert,

apologies for the delay in responses, i'm travelling for work and it makes it difficult for me to work on this project as well.

i have just tried to upload your sketch, and it comes up with "Ethernet" has not been defined

i think it's something to do with the ethernet library that i have installed on my PC.

i have downloaded Arduino 1.0.5-r2 and have not changed any of the default settings

Please let me know what i can do next.

thank you