this can be fucking fatal. I would say “do not try this at home”, and i just did.
The below images should exactly describe how to hook up a Polaroid camera to an Arduino. The connections are fairly straightforward.
[caption id="attachment_2436" align="aligncenter" width="300"] Important connections annotated[/caption]
[caption id="attachment_2438" align="aligncenter" width="275"] Final soldered wires. Connect these two and it starts the capture routine.[/caption]
Hook it up to your microcontroller
To hook up a Polaroid to your microcontroller or arduino, you can generally go three ways:
1) Transistor; a bit difficult – this is what i used but I had trouble selecting t he right resistors (>2k ohm didnt work for me)
2) Relay; super easy but draws a lot of current.
3) Opto-coupler; super easy but polarity is important (the way you hook up + and -)
This is the general opto-coupler setup (buy this from sparkfun or something):
[caption id="attachment_2444" align="aligncenter" width="150"] Schematic when you use an opto-coupler[/caption]
Result used in project