Devo 7E drift in Betaflight Preview

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05 Nov 2016 00:29 #55697 by joelones
Devo 7E drift in Betaflight Preview was created by joelones
I just installed the A7105 module and bound the Devo 7E with a FS-IA6B using ibus (kind of surprised I got this far!) I'm in the process of just testing the SP Racing F3 along with the receiver and Tx. After reversing yaw/roll in the Tx, everything seems to moving what it should in Betaflight under receivers.

I read in the cleanflight manual 1500 should be neutral and it should reach 1000 and 2000, I notice on idle I get about 1495-1497 for each roll/pitch/yaw and maximums go to about to 1992-1994, mins are 1000. The preview windows has the quad drifting.

Is there anything I do about this? Is there reason for concern? Or is it because I'm using a Devo 7E?

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05 Nov 2016 09:11 #55709 by Fernandez
Replied by Fernandez on topic Devo 7E drift in Betaflight Preview
Calibrate the TX first, the mid should be around 1500 it should be stable. The top ends, you could scale up/down the endpoints a bit if needed, but it is not that important if endpoint are not spot on 1000-2000

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05 Nov 2016 15:10 #55716 by joelones
Replied by joelones on topic Devo 7E drift in Betaflight Preview
I did calibrate the Devo prior. I can get at the subtrim menu and attempt to get it to 1500, but it's not stable, ie: roll/pitch/yaw jump from 1499 to 1500 - are constantly jumping.

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05 Nov 2016 16:59 - 05 Nov 2016 17:03 #55720 by aMax
Replied by aMax on topic Devo 7E drift in Betaflight Preview
Use the deadband function in Betaflight. That´s for it.

Edit: ... and calibrate the acc if you have not done this.

Devo7e, TaranisQ X7, R9M , 4in1 MM, Futaba FC18plusV3.2 & DFT/FLD-02
Last edit: 05 Nov 2016 17:03 by aMax.

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05 Nov 2016 17:11 #55721 by joelones
Replied by joelones on topic Devo 7E drift in Betaflight Preview
Thanks but I set the RC Deadband to 4 (2 times amount of movement), saved and no change.

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05 Nov 2016 17:20 #55722 by aMax
Replied by aMax on topic Devo 7E drift in Betaflight Preview

joelones wrote: Thanks but I set the RC Deadband to 4 (2 times amount of movement), saved and no change.


The preview or the flight behavior? The FC will not use the stick movement info if it is in the range you have set.
With the Superexpo setup, there should be no need of a deadband setting, because all is quite flat at midstick.

Devo7e, TaranisQ X7, R9M , 4in1 MM, Futaba FC18plusV3.2 & DFT/FLD-02

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05 Nov 2016 17:22 #55723 by joelones
Replied by joelones on topic Devo 7E drift in Betaflight Preview
Oh I haven't flown with it yet. I simply looking at the preview. I'm not sure what Superexpo means...many thanks for your help.

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05 Nov 2016 17:43 - 05 Nov 2016 17:45 #55724 by aMax
Replied by aMax on topic Devo 7E drift in Betaflight Preview
...which fairly means, ..I haven´t read the Wiki..;)
Check the PID setup, there is a slider and reduce the RC Rate to get comfortable with your quad.

But I think , this is not the right place to discuss quad setups, there are better places and there is nothing what the Devo and Deviation
can do for you.( except scaling&subtrim)

Devo7e, TaranisQ X7, R9M , 4in1 MM, Futaba FC18plusV3.2 & DFT/FLD-02
Last edit: 05 Nov 2016 17:45 by aMax.

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05 Nov 2016 17:53 #55725 by Fernandez
Replied by Fernandez on topic Devo 7E drift in Betaflight Preview
I also have some jitter on my midpoint, I think it is the power supply of the devo 7e, it is worse on some protocols such as frsky at full power

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06 Nov 2016 11:44 #55738 by Arakon
Replied by Arakon on topic Devo 7E drift in Betaflight Preview
Does the drift happen with the transmitter off? Slight drifting is normal due to gyro/ACC drift.

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07 Nov 2016 20:55 - 07 Nov 2016 20:56 #55780 by joelones
Replied by joelones on topic Devo 7E drift in Betaflight Preview

Arakon wrote: Does the drift happen with the transmitter off? Slight drifting is normal due to gyro/ACC drift.


No drift when the Tx is off. However, I have yet to fly the quad, so I have no idea at the point if the jitter translates into unstable flight, I'm just going by what I see in the preview window.
Last edit: 07 Nov 2016 20:56 by joelones.

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17 Nov 2016 13:32 #55985 by kaligola
Replied by kaligola on topic Devo 7E drift in Betaflight Preview
this is same i get with x9r pro in one model i built. have to try to bind 7e to this and check

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12 Jul 2017 20:33 #63412 by D10X
Replied by D10X on topic Devo 7E drift in Betaflight Preview
Hi!

Have anybody a file model.ini to use in the Devo7E with FS-iA6B? I am doing a connection with AFHDS-2A through iBus, but all channels are wrong :(.

Thanks!!

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17 Jul 2017 10:05 #63495 by D10X
Replied by D10X on topic Devo 7E drift in Betaflight Preview

D10X wrote: Hi!

Have anybody a file model.ini to use in the Devo7E with FS-iA6B? I am doing a connection with AFHDS-2A through iBus, but all channels are wrong :(.

Thanks!!


Solved!!

I need to change the channel map to AETR1234

:)

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