"It strikes you as foolish because it is.

I would forgo the gains of seeing current sensing on a build you are describing and plug it straight to your batteries."

"@Martin

I ended up using a turnigy PWM switch on AUX1.  I set AUX1 in parameters to be the camera trigger.  Once you do that, you can tie the trigger to be distance based, or TX switch based.  I am using a Cannon with CHDK and the default script…"

"PWM RSSI is not yet supported (or at least I don't think it is).  Because of this you need to convert the FrSky PWM signal to analog.  This can be done with an diy RC filter.  "

"I use safety button and yaw arming in plane. Works fine.

It should be noted that you cannot yaw disarm - or at least I can't.  once you arm with yaw, you must use the safety button to disable throttle output until you power down."

"I'm moving that way. I have a PWM based switch on the way. $6 is way cheaper than my time messing with this."

"Servo activation just doesn't work.  Same issue as many others have reported - the pulse bounces between 0 and 10-11 according to chdk.  Whether through passthrough or servo on any channel, the trigger will not fire using the methods in this thread.…"

"I have this working as a relay in APM Plane, but I am unable to use a channel to trigger the camera.  I have set RC7_function to 10: camera_trigger and channel 7 assigned to a switch, but it doesn't trigger the camera.  The camera triggers fine…"

"You can power by using any/all options. There are 3: USB, power module port, servo rail. Use them all, use 2, or use just 1. Pixhawk will select the best source magically. Just supply the proper voltage to the correct pins at each location. The pin…"

"The pixhawk does not send power out the servo rail.  You should connect a 5V BEC or whatever you choose to get 5V to your servos to the servo/input/output pins.  It will provide power to the rail, and to the pixhawk in case of main power in failure.…"

"Your answers are in the photos you posted.

Question #1: Don't use that garbage.  It is intended to use your ESC BEC for the low voltage
Question #2:  Look at the picture you posted.  It shows you exactly what you need to do.…"

"It's not worth the worry.
Pick up foam from multiple other locations, or buy some Kyosho Zeal from any multitude of online locations."

"Make a cable using a female servo connector.  Don't put the outer housing on it so the pins are exposed.  It will plug in to that connector for charging."

"So setting idle speed to around 150, and min throttle to 180 I'm not getting sync issues anymore. I'd like to know if anyone else can replicate this."

"So I think I've narrowed mine down to the throttle idle. If I allow the motors to idle, I lose sync. If I don't idle when armed and instead go to throttle low from off, I am not losing sync. I'll have to test more to confirm as I only ran 2 more…"

"Add me to the list of pixhawk users with sync issues even after following all the information I can find on the topic.  Using signal ground, 400Hz, modifying min throttle, esc.  0 issues during calibration or on other flight controllers, but issues…"