I want to add a small amount of up elevator on launch using the ELE switch.
This mix produces a result by lowering the pwm from 1500 (mid point) except the max pwm is much lower than the required 2000.
CH2 100 Ele
+ -30 sELE Ofst -30
I had to decrease both the weight AND Offset otherwise the mid position was not at 1500 when the switch was off.
Is there a better way to achieve the same result, or should I control this in iNav?
Understanding mixer offset
Understanding mixer offset
S500 + Pixhawk 1 clone + Mauch PM + C&T Telemetry adapter + 9XR-Pro (Taranis gimbals)/XJT/X8R
Re: Understanding mixer offset
Second attempt:
CH2 100 Ele
+ -30 HALF
Sw ELE, Ofst 0
This seems to work better. Only minor issue is the max down elevator PWM is less than 2000 (1850).
I also restricted it to work only with the flight MODES I might use for launching.
CH2 100 Ele
+ -30 HALF
Sw ELE, Ofst 0
This seems to work better. Only minor issue is the max down elevator PWM is less than 2000 (1850).
I also restricted it to work only with the flight MODES I might use for launching.
S500 + Pixhawk 1 clone + Mauch PM + C&T Telemetry adapter + 9XR-Pro (Taranis gimbals)/XJT/X8R
- MikeB
- 9x Developer
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Re: Understanding mixer offset
This works:
CH2 +100% Ele
R +130% Ele Switch(ELE) Offset(-30%) Curve(x>0) [Replace mix]
+ 70% Ele Switch(ELE) Curve(x<0)
With ELE off, you have normal +/- 100% from the stick.
With ELE on, you have an offset of -30%. In one direction the stick then gives 130% to go from -30 to +100. In the other direction the stick gives 70% to go from -30 to -100.
If you use sELE as the source, then the output (2-position switch) is either -100% or +100%, which is why you needed to change the weight as well.
I've also got a couple of ideas where you could use a pot to set the offset amount!
Mike
CH2 +100% Ele
R +130% Ele Switch(ELE) Offset(-30%) Curve(x>0) [Replace mix]
+ 70% Ele Switch(ELE) Curve(x<0)
With ELE off, you have normal +/- 100% from the stick.
With ELE on, you have an offset of -30%. In one direction the stick then gives 130% to go from -30 to +100. In the other direction the stick gives 70% to go from -30 to -100.
If you use sELE as the source, then the output (2-position switch) is either -100% or +100%, which is why you needed to change the weight as well.
I've also got a couple of ideas where you could use a pot to set the offset amount!
Mike
erskyTx/er9x developer
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The impossible takes a little longer!
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The impossible takes a little longer!
Re: Understanding mixer offset
Mike, can't it be done using a GVAR?
João
João
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- MikeB
- 9x Developer
- Posts: 17990
- Joined: Tue Dec 27, 2011 1:24 pm
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Re: Understanding mixer offset
Probably not with a single GVAR that both moves the offset AND changes the throw to get to 100% in the opposite direction to the offset and only 100% in the same direction.
Mike
Mike
erskyTx/er9x developer
The difficult we do immediately,
The impossible takes a little longer!
The difficult we do immediately,
The impossible takes a little longer!