Posted by Matt Mariani on April 23, 2013 at 7:02am
So I have a transistor setup to trigger the shutter on my camera, confirmed working with 5v. I have the flaps switch on my tx setup to effect channel 7 on apm input, also confirmed working (1928 Pwm value when activated). I have setup the shutter option in hardware options set to rc8, the channel 7 option n standard params set to camera trigger with the option above set to transistor. Doesn't work...ie no 5v on output channel 8 when input channel 7 goes above 1800 Pwm. I see that the shutter section in hardware options (where i selected rc8) has a transistor selection possible....but then how does it know what output channel I have my camera on?Any help would be much appreciated.
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Have you tried using the 'relay' trigger mode? You get 5V on analog pin A9 with that, I've used it recently.
The output pin is defined in AP_Camera.h .Which is 83 by default .
#define AP_CAMERA_TRANSISTOR_PIN 83 // PK6 chosen as it not near anything so safer for soldering
you can find this in libraries folder . Open folder AP_Camera and you will get the header and cpp files for same .
I have not yet tried changing it !
But i did try this
http://diydrones.com/profiles/blogs/camera-triggering-using-transis...