Hello,

I am currently working on a project that involves using switches (handled 
the same was as a button) and node.js. I am stuck on a part that involves 
making sure the switches are pressed in the correct order. There is an Up 
switch and a Down switch.

The things I need to do:

- The Up switch needs to be the first switched pressed, if the Down switch 
is pressed first I need to print an error (console.log will do)
- The Up switch cannot be pressed two or more times in a row without having 
a Down switch press in between, if there are two or more Up switch presses 
in a row it will result in printing an error.
- The Down switch cannot be pressed two or more times in a row without 
having an Up switch press in between, if there are two or more Down switch 
presses in a row it will result in printing an error.

Any help I can get would be greatly appreciated! I have been stuck on this 
for quite a while and I know it shouldn't be hard its just not coming to me 
very easily. Everything I have tried so far as been unsuccessful. 

Thanks.

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