I've set up my GoPro Hero 3's shutter to be activated by a Picoswitch (PWM controlled relay) and it works well. The Picoswitch is wired to RC10 on the Pixhawk servo rail.
I'd like to use a survey grid to trigger the GoPro using CAM_TRIGG_DIST so that Pixhawk logs GPS data every time the GoPro is triggered to take a picture.
My questions are:
Can a camera that is operated by PWM be used with the CAM_TRIGG_DIST option selected in the Survey Grid window's camera options tab, or does CAM_TRIGG_DIST only work for cameras that are operated by relay? (I have CAM_TRIGG_TYPE set to 0 for Servo)
If I can use CAM_TRIGG_DIST, what should my settings be for CH7_OPT and RC10_FUNCTION?
If I can use CAM_TRIGG_DIST, (and I select that option in the camera options tab of the survey grid window), do I need to specify SERVO, PWM, and CYCLE TIME?
Any help would be much appreciated - I battling frustration hard on my 11th trip to the school yard to try and make this work...
Replies
We use the survey grid function to do the waypoints, but as our runs can have more than 170 shots, using any DO_ command for the camera would make the waypoint file too large.
So we just have waypoints at the ends of our runs and the _DIST function does the rest.
On some runs we are looking to 80% overlap so a fast camera is a must.
So a waypoint file will have takeoff, DO_SET_CAM_TRIG_DIST, waypoints, RTL.
That's it.
Thanks, Randy. That's a good tip about using _DIST to ensure the waypoint file doesn't get too large...