function to control an rgb led

Ok, no problem. Obviously it takes a while for me to write that code for you, and I can't afford to keep doing that for folks that aren't using official boards :) I'll move this to the 'General' other boards section.

Some obvious stuff I notice:

• Calling power("on") twice will set up 2 intervals - so you need to either only call setInterval once at the start, or make sure that power("off") clears the interval
  
• E.on('init', onInit()); is broken - just remove that line
  
• save() shouldn't be on the right-hand side of the IDE, it could cause problems