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ArduPilot / ardupilot

ArduPlane, ArduCopter, ArduRover, ArduSub source
http://ardupilot.org/
GNU General Public License v3.0
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Drone cannot be disarmed with HWSS (hardware safety switch) sometimes #25958

Closed ardugitter closed 7 months ago

ardugitter commented 7 months ago

Bug report

Issue details

Setup:

  1. Set DISARM_DELAY parameter to 0 so that once the drone is armed, the motors keep spinning until explicitly disarmed.
  2. Configure motor emergency stop to be one of the spare channels on the transmitter.

The issue:

  1. Arm drone by pressing HWSS on the drone.
  2. Arm with joystick on transmitter. Motors will start spinning.
  3. Set motor emergency stop using the transmitter. Motors will stop spinning.
  4. Try to disarm by pressing the HWSS. It fails. It should succeed.

Version Arducopter 4.3.8

Platform [ ] All [ ] AntennaTracker [x] Copter [ ] Plane [ ] Rover [ ] Submarine

Airframe type Normal X quadcopter

Hardware type Pixhawk 1

Logs Sorry don't have one at present.

rmackay9 commented 7 months ago

Hi, I suspect the issue is actually just that the vehicle does not think it is landed. If you hold the throttle down and then try to disarm does it work? I think it should.

BTW, it's best to report these in the forums first and then we can move them to the issues list once they're confirmed to be a real issue. I'll leave this here for now but we need to be a little strict about this or our to-do list turns into another support forum.

ardugitter commented 7 months ago

Yes, that works. Sorry, I'll post next time on the messaging board instead of assuming it's a bug.

It just seemed like a safety issue that using the HWSS should always allow a safe disarm, whatever the drone state. I'll close it for now and see what the messaging boards think. Thanks again.