Slow Flaps?

Can someone help me setup a flaps channel with the slow speed setting. I want 3 flap positions, programed to the flight mode switch on a devo8s. I would like the flaps to slowly move to the selected positions. Is this possible?

Thanks vlad, i tried that, using a complex mix and fixed values. I have not tried it with the servos hooked up but should the channel monitor show the slow changes when the flight mode is changed? I thought i would be able to see the slow transition form one point to the next, but it just jumps directly to the new position.

Ok thanks, i'll see what happens when the servos are hooked up,

Hi Kdean,

can you give me your help with setting up flaps, i think i understood the way to programm speed and so on, but i simply are not able to setup the channel for the flaps?!

Did anyone ever figure out the slow flaps? I am trying to do the same. Any help would be appreciated. This is what I have so far:

;FLAPS: MIX0=NO FLAPS,MIX1=DOWN75,MIX2=UP75,SPEED=5
[channel6]
speed=5
template=complex
[mixer]
speed=5
src=MIX0
dest=Ch6
switch=MIX0
scalar=0
curvetype=fixed
[mixer]
speed=5
src=MIX1
dest=Ch6
switch=MIX1
scalar=75
curvetype=fixed
[mixer]
speed=5
src=MIX2
dest=Ch6
switch=MIX2
scalar=-75
curvetype=fixed

Have you tryed the delay mux? I found that that works ok for me, i am am using it on all my planes with flaps.

I am no where near to beeing an expert in programming the DEVO, but this is what my flap for my Fun Cub looks like:

[channel5]
scalar-=100
subtrim=275
template=complex
[mixer]
src=MIX0
dest=Ch5
switch=MIX0
offset=30
usetrim=0
curvetype=3point
points=0,0,0
[mixer]
src=MIX1
dest=Ch5
switch=MIX1
usetrim=0
curvetype=3point
points=-30,-30,-30
[mixer]
src=MIX2
dest=Ch5
switch=MIX2
usetrim=0
curvetype=3point
points=-90,-90,-90
[mixer]
src=AIL
dest=Ch5
scalar=12
usetrim=0
muxtype=delay
curvetype=fixed
[mixer]
src=AIL
dest=Ch5
switch=MIX2
scalar=12
usetrim=0
muxtype=delay
curvetype=fixed
[mixer]
src=AIL
dest=Ch5
switch=MIX0
scalar=12
usetrim=0
muxtype=delay
curvetype=fixed

Of course you don't need the offset and trim values. When using the delay mux, a scalar of 20 corresponds to 1 second delay from one point to the other. 40 would be 2 seconds, and so on. I find this much more usefull as it allows for the same total travel time from point to point, even when values are not (e.g. from 0 flaps to 30% in 1 second, and then from 31% to 100% again in one second).

I hope this helps somehow.

Hmm... I wander why it says src=AIL while when i look directly in my DEVO says "src None" for the delay mux. I have no idea why the .ini file says src=AIL... ????

Thanks for the help.
Can you please explain the reason for scalar-=100 and subtrim=275 ? Why is it -=100 instead ot =-100? Also, I am not following the subtrim =275. I also see you have scalar=12 for your delay but you are saying that 20= 1 second.

Thanks again,

It says subtrim=275, because i had to use 27.5 subtrim to achieve zero position where i wanted it to be (could have centered the servo better, but i was a bit lazy i guess). Ignore that, you don't need it.

A value of 20 corresponts to 1 second (as far as i know, didn't actually ever time it to be honest), so a value of 12 is 12/20=0,6 seconds. Again, i didn't actually time it, i just set it to a value that the result suits me, and looks and feels good. Just experiment with different values and see the results.

As for the scalar-=100, i really have no idea why it is like that. I wander too. And for that src=AIL that appears in the code, while there isn't actually in the mixers when i look the DEVO's screen. I don't know what to say about those, i am puzzled too... Maybe a more experienced programmer can explain that to us?

And there is no way that i am doing something wrong, becaus it is only yesterday that i was flying my FunCub with no problems at all, working all good.

Anyway... to get back to the original problem, just experiment with the delay mux, and see if it works for you too...