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this isnt mbed specific, its more of an engineering/software general question.
is it possible to control the digicam/smartphone camera to take snapshot pictures upon certain user initiated actions via microcontroller and save the image into an external SD Card?
the flow would simply be like:
---materials: microcontroller - with SDcard module/shield
digicam/smartphone
---1. push a hard button
2. digicam/smartphone recognize the action and take snapshot pictures
3. digicam/smartphone stores the pictures into an external SD card connected to a microcontroller