Hi
im still waiting for my photo transistors to arrive the diodes i have just wont work .. but it does wait after the solenoid has tripped and then fires flash and closes the shutter when i disconnect the photodiode so u may want to chk the wiring and that u have the long and short leads the right way round.
not got the lightning working yet ..again still waiting for the visible light photo transistor.
and the sound is kinda working, I can get it to wait for a loud clap once but after the first one it just goes st8 onto trigger flash and shutter... thinking of changing the resistor. i found this that may help Arduino High Speed Photography Trigger - YouTube . if ya look at around 2.35 min
i moved the resistor from 21 e,f to 21a and the 12v neg, took out the 21j to 5v neg jumper wire, then moved the other 2 leads on 21 down to d and e then moved then other wire from the sound detector socket on the 12v neg next to the resistor on the 12v neg bus.. Hope that makes sense ??? I just think it makes the circuit a little cleaner and more compact ( less to go wrong lol )
I got it all set up on stands now ..almost getting excited lol
chris