I want to be able to trigger a GoPro from a DIY drone that's using the DEVO 10 Transmitter.
I'm kinda new to drones & have a little experience with hobby electronics. From what I gather, the receiver has a PWM signal; and in order to trigger the GoPro, I need to short a pin on the 30-pin connector to ground.
So basically need to create a switch out of the PWM signal.
Can anyone give me an idea of what components I would need to accomplish this? I assume that I would need to smooth out the PWM signal before going into a transistor, then use the transistor to short the trigger pin to ground. What kind of transistor would I need? Also any idea of what size/voltage of capacitor to use?
Any information would be much appreciated! :)