I am trying to control my Nikon camera with a microcontroller, and have a cable which converts the camera plug to a stereo plug connection.
The tip of the plug is the shutter, the middle part of the plug is the focus and the bottom of the plug is ground. When you short the shutter pin to the ground for example it fires the camera.
Anyway, I want to try and control the camera using what I have if possible, and I am wondering if something like a N channel Mosfet like the following (http://www.freetronics.com.au/products/n-mosfet-driver-output-module#.VaZPsPmqpBc) would be able to control the camera?
If that is the case and I can use something like this safely, is it the case that I would connect the gate to the microcontroller, the ground of the cable to the ground of the arduino and the source of the Mosfet, and then the top pin of the stereo plug to the drain on the mosfet?