Flight-controller-style Arming and Disarming in EdgeTX (with Throttle safety logic)

In this tutorial I am showing you how to add arm/disarm or throttle cut logic to your EdgeTX radio for models that don't have a flight controller.

[@JosephOttinger]

Easy to follow, have not bench tested or flight tested it yet but honestly, it looks like it's rock solid in radio-only tests. I'll bench test it and flight test it this weekend.

[@JosephOttinger]

And now I HAVE done the bench test with my plane: it worked *perfectly*.

[@flipfpv]

This is great. I've been looking for a good way to add an arm switch to airplanes and this seems perfect for that.

[@ottosun12]

Awesome. Thanks!

[@patjustpat5014]

Messy, convoluted, and unnecessary instructions. All you have to do is go to "special function" and assign a switch to override throttle and set to -100. A single line..

[@DZARO]

Unfortunately, there is a difference between this option and what you are suggesting. If you do it the way you are suggesting, the following will happen: When you flick the arm switch and your throttle is not low (e.g. 20%), the motor will immediately start to spin with the new throttle position because the output for the trottle channel will be set to whatever current position you have on your throttle.
What this does is it ensures that the throttle can not be armed, unless it is *first* in the low position and then the arm switch is set to the arm position.
This is the way almost all flight control firmware operate today and unfotunatley the "messy" way is the only way you can achieve the same effect.