Hi at all,
I setup a Raptor 50 nitro heli and want to add a APM 2.6 now.
After 3 weeks testing i have had:
3.3 V Regulator chip broken and changed, bootloader corrupted and setup new.
So I spend some time with a lot of trouble.
Please explain me how to control the ELEVATOR with input channel 2.
I have connected 5 servos to the APM.
Aileron, Elevator, Pitch, Ruder and Throttle.
The Raptor has H1 swash type.
I can arm the APM.
I have a prop channel to set the throttle speed.
I made a 6 position switch for flight mode.
I can change the collective pitch, the ruder and the Aileron servo position, but the Elevator servo is moving together with pitch servo.
My transmitter is in acro plane mode without any mixing in stick mode 2.
Why is the stick for Elevator without function?
How can the helicopter move forward? (Nose up and down)
Armin
Replies
Hello, in the below file I write some information, because of male functions during my test.
To ARM the APM you need channel 3 and 4 working on correct inputs.
I changed the connections between receiver and APM so that I have manual control of the right servos (all 5).
I tested in armed to move the heli:
ruder is working good i turn left and apm reacts correct
aileron same
only elevator is not working apm moves pitch instead of elevator.
I changed the connections like in the pdf and will test once more.
Give information here when it works, should be usefull for other heli pilots.
Armin
APM+JR_in_outputs.pdf
I found a problem in RC_MAP, never change this again:
Also in the MP calibration screen of radio the throttle moves instead of elevator. Is this because of other models, planes or rover, where this is different? Anyway I will install my equipment tomorrow in the heli and make some dry tests. The position hold mode should work without nitro machine running, and I will look for the servos correcting the position, when I move the heli by my hands.
So looking forward tomorrow.
Thanks David
Armin
Just remember in a heli the throttle is really the pitch of the blades. Bench test after armed to see if the swash moves in the opposite direction that you ROTATE the heli in. This should be done in STABILIZE mode not position hold. position hold uses the GPS. Bench test this in Stabilize.
Regards,
David R. Boulanger
OK I will make some tests tomorrow. Stabilize is my mode switch position 1.
The APM should work against my hand movements of the heli. Only if this works totally ok I will start the engine.
I tried some years ago to control the heli with the robbe HELICOMMAND 3a but this was not working well.
By working on some Arduino home projects, I found arduino control of a helicopter. I read a lot and decided to install the APM in my heli.
Regards
Armin
I'm glad you solved your problem. Your mapping is just like mine.
Regards,
David R. Boulanger
Post your parameters. If it is moving with pitch you are obviously getting an output on 3 out and you see a change on the failsafe on MP so input is going in on 2. So nothing at all happens when you move the elevator stick?
Regards,
David R. Boulanger
Armin, Try reversing the elevator in the radio
Regards,
David R. Boulanger
no function at all
on the failsafe page in MP, I see the input channel 2 changing, but no servo moves. Should be channel 3 output of the APM. Only moves with pitch together. Is this a channel mapping problem?
Armin