iNavFlight
Motor/Servo wrong direction on disarm - servo reversed
Current Behavior
1: I run the speedybee F405 wing in a GAS plane! Not electric, GAS / FUEL
My Servo for the Motor must be reversed to operate the right way
The problem now: If I disarm, the servo goes to 1000 ---> full throttle! But it should go to 2000us and the motor should shut down because of closed throttle body / no air.
The min/max are untouched 1000/2000 and the reverse option is set to match the right movement.
I tryed the switch 2000/1000 min/max, but then the servo is just a "switch" . it does no longer operate like a servo, it just travels between min and max, nothing in between . Is this a bug?
What can i configure that on disarm, the servo goes to it´s 2000us position? It should be, because it is reversed. Or am I wrong?
Steps to Reproduce
- set the RC Throttle (mixed one doesn´t matter) to a channel you like
- Reverse the SERVO
- disarm
Additional context
Hope I explained it that everyone understands my problem
- FC Board name and vendor: Speedybee F405 Wing
- INAV version string: 8.0.1
First, please check in the Reciever tab and verify the throttle value increases when you increase the throttle. If that's backwards and then you reverse the servo, it will cause exactly that problem.
There also something else that can cause that, but first let's check this.
Hi
the Throttle is correct, down at 996 and full throttle at 2000. I checked that already, you can´t know.
I fly ~10 of these Speedybees Wing, but all Electric. This is the first in a GAS one and all is fine, only the throttle servo on disarm goes to full throttle and that is dangerous!
greetings
Okay, excellent. I think you have come across a bug that I fixed at one point, then it got unfixed when the code was simplified. The servo was just set to minimum (1000) and may not account for reverse etc.
A workaround for now -
If your motor servo can handle 400 Hz updates, you can that output as a motor, using the "standard" protocol, rather than as a servo. Really it's both - it's a servo for a motor.
Hi sensei-hacker, yipppyy, found a "bug" :)
I fly analog standard servos with 50hz :(
I temporary hotfix within the next days?
A servo reverser would work: https://www.componentshop.co.uk/servo-signal-reverser.html
I hope for a software / firmware solution.
It was fixed and I am sure it will be fixed again.
The only hope is, that it is done in one of the next releases :) I wanna fly that thing, not risking a full throttle disarm.
Sensei-hacker, what do you think — how long will it take to fix the bug again? Are we talking months, or is there a chance it could be resolved within the next two weeks?
I can live with two weeks. If it's going to be months, I'll need to find another solution, since I use the plane for youth flying events (I tow gliders with it), and the weather is getting better and better, and of course the kids want to fly — understandably, and so do I :)
No stress — it takes as long as it takes. INAV is world-class, and this time it just happened to be me who got hit by a bug.
There's about a 30% chance I may do something for this over the weekend.
I have some other issues to work out and several new flight controller targets to fully test, so I may not get to this one.