Add a 'Kill Switch'

[m4gr3d]

Similar to Parrot's ar-drone/bebop emergency mode, the kill switch should allow the pilot to immediately disable (disarm) a connected copter.

[Loop-Zilla]

Second that request.

[Thalek]

Just require a double-tap or a long tap to make it harder to activate purely by accident.

[zlite]

I just dropped a BeBop from 40 feet by accidentally hitting the Emergency Mode. Fortunately it's very robust (because it's small and light), but for anything larger we'll need a pop-up to ask if you're sure.

[Loop-Zilla]

I would love to have a hardware E-Stop implementation, maybe even something through the headphone jack (not sure how that works, but I have seen devices use the port for analog sensing).

[BitMapping]

Somewhere Rob suggested a slider. It is more secure compared to most other inputs.

[m4gr3d]

Fixed by PR #1470

[m4gr3d]

Disabling the feature until AC 3.3 is released since it adds support for disarm while in flight.

[m4gr3d]

For versions prior to AC 3.3, starting accelerometer calibration could be used as a kill-switch, since it'll cause the autopilot to block until calibration is complete.

More of a hack though!

[squilter]

For versions before 3.3, the kill switch will change the mode to stabilize and then disarm.
For 3.3+, the kill switch will send the disarm packet with the the force flag (#1494).

[squilter]

@ne0fhyk How is the arducopter version checker going?

[m4gr3d]

Fixed by #1511

[MaxQu]

Support the emergency disarm. Will save blade when the drone tips over.