Hi DIY community, I'm working on a HackHD camera Gimble and need your advices.
The atitude metrics will be received via MavLink messages. Like MinimOSD do.
What should be the MavLink messages to listen to in order to trigger a photo or start the video?....
I know HackHD is old but.... anyway This is a picture of my prototype so far.

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I didn't think anybody else was using a hackHD. Love those little camera's.
If you wanted to trigger a photo on that camera couldn't you just wire the camera to your receiver. When the Rx goes high it sends 5volts to your camera initiating the photo?