So, clearly an Arduino Raspberry Pi combination is the winner. as already identified.
The remaining task is to combine the devices, such that the Arduino wakes the Pi intermittently for file handling.
Previous posts outline a suggested workflow for this but a question has arisen in my mind as to whether it's possible for the Arduino to keep taking images, during a RasPi file handling session?
The latest discussion has suggested that a camera autostarted CHDKPTP script would initiate an image capture on receipt of a pulse from the Arduino at the USB port but it would also (I'm not clear on how) sense the Pi being connected, at which point it would switch to PTP mode until the RasPi disconnected.
If the two modes, USB pulse initiated capture and PTP are mutually exclusive, it would be interesting to see if the RasPi file count / report and disconnect function could be completed within the 60 second interval, or perhaps we could simply lose one shot an hour to open up more of a gap?
I think we definitely should try the 6 second loop version, at least until the lens actuators reveal their limits. I am very glad to hear there may be a way to keep shooting while the Raspberry Pi is connected.
Lovely, thanks
This one first checks the USB jack when it runs. If there is power there, it assumes you want to use chdkptp (or some other PTP protocal program) so it just loops forever waiting for you to press any key or for the power to be removed from the USB port. If there is nothing on the USB port it takes one shot and exits.
Fantastic thanks WW, I will give it a go todayLet's see if the PTP can handle two Luas.
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