Show me this word in BF "setup tab "

I lose the connection between tx and Rx and the Drone crashes!!i

i have Video clip
But I can't download it here

Upload it to Youtube. :/

The failsafe setting is in CLI. I think the cvar is failsafe_procedure and the default value is "drop". i think you can set it to RTH if you have a GPS and have setup that functionality. But most of us have it set to drop. No idea how Auto-Land works.

I know this thread is marked as resolved, but for reference the "Land" option just puts the quad into stability (angle) mode to get it upright while setting the throttle to a specified value, and it then disarms the quad after a specified period of time. The idea is that you configure a throttle value which is just a bit lower than hover so the quad will gradually descend when a failsafe kicks in, and you specify a disarm period time that you think will be sufficient for the quad to be close enough to the ground that it won't get damaged when the motors eventually stop and it then falls out of the sky.

The problem with the "Land" option is that there is no intelligence built in so if you set a throttle value and you then end up flying on a windy day, or you use a lighter batter than usual, the quad could actually start ascending instead of descending, and if it hits any object like a tree or it reaches the ground before the disarm period has elapsed the props will just continue spinning which will risk destroying the motors and/or the ESCs. Also, there is no direction control of the quad as it (hopefully) slowly descends, so while doing that it could drift off in any random direction making the location of it much more difficult or impossible to find once it does reach ground level, or even worse, it could drift into people or a property and cause injury or damage without anyone being able to control it.

The bottom line is, NEVER use the "Land" option under any circumstances. I honestly don't know why the Betaflight devs don't just remove that option completely.

So unless you are testing or flying in a completely isolated area devoid of anything but you and the quad, it's a bad idea.

(24-Nov-2023, 12:38 PM)SnowLeopardFPV Wrote: I know this thread is marked as resolved, but for reference the "Land" option just puts the quad into stability (angle) mode to get it upright while setting the throttle to a specified value, and it then disarms the quad after a specified period of time. The idea is that you configure a throttle value which is just a bit lower than hover so the quad will gradually descend when a failsafe kicks in, and you specify a disarm period time that you think will be sufficient for the quad to be close enough to the ground that it won't get damaged when the motors eventually stop and it then falls out of the sky.

The problem with the "Land" option is that there is no intelligence built in so if you set a throttle value and you then end up flying on a windy day, or you use a lighter batter than usual, the quad could actually start ascending instead of descending, and if it hits any object like a tree or it reaches the ground before the disarm period has elapsed the props will just continue spinning which will risk destroying the motors and/or the ESCs. Also, there is no direction control of the quad as it (hopefully) slowly descends, so while doing that it could drift off in any random direction making the location of it much more difficult or impossible to find once it does reach ground level, or even worse, it could drift into people or a property and cause injury or damage without anyone being able to control it.

The bottom line is, NEVER use the "Land" option under any circumstances. I honestly don't know why the Betaflight devs don't just remove that option completely.

hey boss 

The problem was that the Disconnection between the radio and the drone

Changed to pad " 5v" in fc  and the problem was solved

I think the 4V5 its bad in speedybee