So I am working on a mod for my controller, which happens to be a cg2. Now I am trying to figure out how to make it turn off when my controller is off. From my research on this site, along with a few others, I have found out that the power source near the headset plug is not switched, so my mod chip will always be on. The solution that I always see is a optocoupler. Now this is ok, but I would rather not have to go though the trouble.
Now, I also know that it is somehow possible to detect when the power is off, because I have a kit off of ebay from a while ago that will turn off when the controller is turned off, and the only parts on this mod are wire and the chip itself, nothing else.
So, how can I detect when my controller is off on a cg2 type controller