Here is a diagram of my wiring. The only difference is I have 4 AA batteries instead of the one shown on the diagram
You have the button powered from the 6V servo supply, thus frying(*) the Arduino. The button must
be from the Arduino 5V logic supply, its a logic signal.
How do I use the power supply transformer? It doesnt look like it comes with a plug to plug into the wall. What kind of plug do I need to correctly plug it into the wall?
Hmmm. It is also just possible to cut off the end of the wires on this power supply and get the power and ground wires from there? It has the same 5V and 10 A as the transformer from ebay.