How to hook it up to your Arduino/microcontroller
Generally there are three ways:
1) Relay, super simple but asks a lot of power and do not often work with 3.3v if you happen to use that
2) opto-coupler, super easy but polarity is important
3) Transistor, a bit more difficult. this is what i used and i got good results although you have to tune your resistor values a bit, I ended up using 10k Ohm with a simple npn transistor i had in a drawer somewhere.
When you break the thing open, you can generally do three things that are important:
1) Take a picture
2) change focus (from close to tele)
3) turn the thing on/off
What you want to attempt to do, it follow the leads comming from the “button” back-side, and try to control them with either your relay, opto-coupler or transistor. See below image for that flat connector ribbon.
[caption id="attachment_2451" align="aligncenter" width="212"] Connector cable comming from the “button back” to the microcontroller on the camera’s bottom.[/caption]
Then you can either follow the leads or connect/solder it as follows:
[caption id="attachment_2453" align="aligncenter" width="300"] Soldered connections.[/caption]
Then if you connect the ground to either the 1st, 2nd or 3rd connector, you can focus it, turn it on/off, or take an image.