I think perhaps I explained wrongly - the idea is that I'd like to bypass having to build one of those releases as I don't have easy access to soldering equipment - I thought that this might be possible using materials I already have by having the phone send that signal to the pin.
Actually communicating between the phone and the camera isn't at all necessary for me, the main point is just that the phone is something powered that I can connect to the USB port via the OTG cable. All I'd need is something on the phone that allows me to send something via that pin, if such a thing exists.
... Actually it seems to have solved my problem, though maybe not in the intended way - it seems as though plugging and unplugging the cable to the phone while CHDK is in remote mode actually has the same effect as the power pack option you suggested...
Started by Dak65
Started by gvandyk
Started by ProfHankD
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Started by eaglesong
Started by Davo
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General Help and Assistance on using CHDK stable releases