ETA on emergency stop switch?

PX4 Autopilot Configuration & Flight Modes ⚙️
1

Hello,
Do you know an ETA for the emergency stop switch support? I’ve come to rely on it on my small quads… More often than not, I can save my props in situations that would otherwise break all of them.

Thanks

2

Its already implemented. Will go in soon. https://github.com/PX4/Firmware/pull/3525

3

Thank you!

If anyone else is looking, he added instructions here:
http://px4.io/docs/flight-mode-configuration/

4

Any suggestions on why my kill switch may not be working while I’m testing (with no props)? I have the parameter RC_MAP_KILL_SW set in QGroundControl to 5, which I have checked on the radio calibration is a two-position switch going to min/max. I set the RC_KILLSWITCH_TH to 0.5 so that it enables it whenever the switch is hit. I am not getting the motors to turn off though. I also checked if I needed to reverse my switch and that didn’t help.

5

Do the motors still respond to your throttle or are they stuck if the switch is activated at the last value?

6

They still respond to the throttle.

7

This branch should fix it - would be great if you could give it a try if you know how to build: https://github.com/PX4/Firmware/pull/3753

8

The stop switch has been working for me for weeks now… It’s not quite instant, but fast enough.

9

Thanks for providing feedback! The instant part is in the works and should hit master any day now.

10

@wicked1 It should work now on master instantly, as we changed the logic to send a disarmed pulse instead of stopping to send any pulses.