setting up 6 different flight modes on a Spektrum DX7 using just one channel

These instructions explain how to set up a Spektrum DX7 transmitter for 6 different flight modes, using just the 3 position Flaps switch (in combination with the Rudder switch). This way you'll use just one channel for the flight modes and leave the Gear and Aux2 channel open ...

(note that you have to use the DX7 in "airplane mode", not in "heli mode" to fly a quadcopter)

switch on your remote while pressing SCROLL DOWN and SELECT
go to "D/R Switch Sel" menu (with the SCROLL UP/DOWN button)
select "Com Rudd" by pressing the INCREASE button
go to the "Input Select" menu (with the SCROLL UP/DOWN button)
press select until you reach "Flap:", make sure it is set to "System" (you can change the setting with the INCREASE button)
press SELECT
set "Flap Trim" to "Inh" by pressing the INCREASE button
switch off the remote
switch on the remot
Press SCROLL DOWN + SELECT to access the programming mode
Go to "Mix1" (with the SCROLL UP/DOWN button)
go into the menu of "Mix1" by pressing the INCREASE button
Select "Flap" > by pressing the INCREASE button
press SELECT to jump to the second position and select > "Flap" by pressing the INCREASE button
press SELECT
Set rate to "+100%" and "-50%" (with the INCREASE/DECREASE button, you'll have to put the FLAP switch in the "N" position for the first value and into the "2" position to set the second value)
press SELECT
Set SW to "Mix" by pressing the INCREASE button
press SELECT
set offset to "10" by pressing the INCREASE button
Go to "Flap Sys" menu (with the SCROLL UP/DOWN button)
set Flap Norm = UP to "46%" (with the SCROLL UP/DOWN button)
press twice SELECT
set Flap Mid = DN to "8%" (with the SCROLL UP/DOWN button)
press twice SELECT
set Flap Land = DN to "100%" (with the SCROLL UP/DOWN button)
press twice SELECT
set Auto Land to Inhibit (with the SCROLL UP/DOWN button)

connect now your APM to the Ardupilot Mega Planner, go to the setup page and assign different flight modes to the switch combinations of your remote.

I like to have easy access to the simple mode (just to get very quick out of a difficult situation) which is the reason why I have two switch combinations programmed for simple mode. I have set it the way that simple mode is always selected if the "Flaps" switch is on "N" (away from me), no matter if the "Rudder" switch is on or off. This way I have just 5 modes accessible, but I can very easy and quick switch back to simple mode.

(this is based on the blog post by Limebear)

www.diesunddas.co.uk

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Comments

Fred LeFevre August 18, 2013 at 6:43am

Felix - of course that begs the question - what values are too similar or lie too close together?

Thanks,

Fred
Fred LeFevre August 17, 2013 at 3:35pm

I see - thanks.
Distributor

Felix Meissner August 17, 2013 at 2:04pm

just make sure that the values (sent by the transmitter) are not too similar/lie too close together,

otherwise it can happen that it jumps between two modes.

Felix
Fred LeFevre August 17, 2013 at 1:56pm

Thanks felix! And for the fast reply!

Fred
Distributor

Felix Meissner August 17, 2013 at 1:41pm

Hi Fred

if you manage to select the modes via radio in the mission planner,

then you will be able to do the same in the field - so you are ok.

Felix
Fred LeFevre August 17, 2013 at 1:25pm

Here's reviving an old thread. If my settings in my DX7 don't look anything like the images here, but the radio is able to shows in mission planner that it can control all six settings do I have an issue or am I ok? In other words will it work as expected when I flip the switches since the radio is changing modes properly in the software?

Thanks,

Fred
Misisi@k March 5, 2013 at 10:07am

Could someone tell me how he managed set up Spektrum with APM 2.0 ? My problem is here: http://diydrones.com/forum/topics/apm-2-0-spektrum-dx7-setup-help

I need a wiring diagram for spectrum receiver, UBEC, ESC, Servos .... Because I'm an idiot and I can not to get involved to make it work ....

Please help ...
Strike Eagle III September 8, 2012 at 6:58pm

I've never used a DX7 before, but I followed the instructions and it works great. I'd like to use the elevator D/R switch instead of the rudder switch since the elevator D/R switch and the flap switch are right next to each other. In the step where you select COM RUDD, I changed it to COM ELEV, but nothing changed--it works exactly the same. I don't see anywhere else the rudder switch was selected. Any help would be appreciated.

Thanks,

Jason
Distributor

Felix Meissner March 13, 2012 at 9:47am

Hi

I don't have my DX7 any more, but I recall that I didn't reach the maximum too.

But it was no problem in the end, I used the Ardupilot Mega Planner to assign the various flight modes to the different positions. As long as you get different values for the different positions/combinations you should be fine as you can assign a mode to each value.

Felix
Chris Kreuzer March 13, 2012 at 2:48am

ahhhhhh it drive me crazy!!!

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