"I did pretty much exactly that, but it was work product, so I can help you get started, but can’t give you code.
My stuff let you zoom the camera, and point the gimbal. It actually controlled more than one camera (one a Sony and one another brand).…"
"Ead, VERY cool!
Thanks for sharing.
Regarding using 3.3V rather than 5V so you wouldn't have to convert for the camera, I believe the camera *wants* 5V (see the spec that you posted here). In fact, it says it's sending you 4V in its TXD, which might…"