As usual my list of things to do is getting longer instead of shorter. My good friend hackaday popped up with this today. It’s a tiny circuit that you plug into the “bulb” input of your Canon (o Nikon apparently) DSLR nad it allows you to take photos at set intervals of your choice.
I have thought about doing something like this for a while, although all my ideas would have been much larger, and would have been externally powered. This one is tiny! Like seriously small and it drains a tiny amount of current from the camera itself. So now it’s just to get my hands on the items. The author claims the parts cost him less than a dollar, although I expect to spend a fiar bit more than that here in SA.