@smokey1300
This is a board that I designed. I didnt think anyone would actually stumble on it.
I'm not sure about any mean penguins, but here is some extra documentation.
https://docs.google.com/document/d/1WtImjSbQPctq8rUAT6k1CyUgJHuo2WDs6bO2HfEr8NI/edit?usp=sharing

Let me know if you want more info. I have built 3 sensors with these boards with no issues.

I did the design in Eagle after watching some youtube videos. OSHPark has a design rules file and can accept the eagle file type without exporting.

This board was my very first (second rev to fix some issues). Here is a link to the files if you want to modify it.
https://drive.google.com/file/d/0B1btbQ_slGM4YzZQTGZHZ19NWEk/view?usp=sharing
Personally I think it would be better to start from scratch in order to get the learning.

My goal was to get the board as small as possible (to reduce cost). I have a smaller one with the radio inside the arduino footprint, but I haven't tested it or shared it yet.

@smokey1300
This is a board that I designed. I didnt think anyone would actually stumble on it.
I'm not sure about any mean penguins, but here is some extra documentation.
https://docs.google.com/document/d/1WtImjSbQPctq8rUAT6k1CyUgJHuo2WDs6bO2HfEr8NI/edit?usp=sharing

Let me know if you want more info. I have built 3 sensors with these boards with no issues.

Here is a quick example of the setup.
The Switch is connected to GND and a digital input on Arduino. Activate the internal pull-up on the digital input and sample the pin in order to detect the position of the switch. The Arduino sketch can then treat the switch as a 3-way switch and toggle the light (relay) when switch state changes.

It sounds like maybe you are trying to create a sensor but you currently dont have a gateway setup. Your sensor is asking the gateway for a node id, but the request fails. If you want to get around this you can specify a node id in your sketch.

gw.begin(NULL, 1, FALSE);

This will initialize your sensor with node id 1. ID 0 is reserved for the gateway.

I usually search for "ac usb" on ebay and get good results.

So far i have been happy to find chargers like these. They support up to 240V and are small enough to fit into electrical boxes with the case on.
http://www.ebay.com/itm/New-US-Plug-USB-AC-Wall-Charger-Adapter-For-Samsung-iPad-iPhon-White-f20-/281681762352?pt=LH_DefaultDomain_0&hash=item41958a9830

I typically get them for ~$0.70 each but have also won some bids for less.

Seems the Windows server doesn't support the MySensors Serial gw yet.

In the systemconfig.xml file it has
<Driver>
<Domain>MySensors</Domain>
<Enabled>false</Enabled>
</Driver>

I tried changing this to "true" but it didnt work.