After using this setup for as my 'mode' switch:
it worked OK :)
But I decided to take it to next DIY level :)
There is 3 knobs on FlySky FS-TH9X radio, they are B5K potentiometers:
so we need to pick one of them that we going to replace with any available 6 position rotary switch.
(I have this one and it fits right)
Unsolder the 3 wires from B5K:
And remove the B5K from the radio :)
Next we need to make a small array of resistors that will act as B5K pot, when we switch to different modes.
The brown wire ( middle one on B5K ) feeds different voltage to the radio channel.
Now we need to add the switch that will connect the brown wire to each position.
And now we have solid 6 modes switch for APM and ACM :)
This is a "kitchen table setup" so if someone can measure better resistors value, pleas do :)
Its much easier than trying to setup some channels mix in this radio :)
Hope it was helpful.
Comments
ok, that was the reference I read before installing the 6 pos sw on my original eurgle FW. And it worked.
Now it doesn't anymore :-(
I've just flashed my eurgle to ER9X FWbut the position switch only works for 4 of the 6 positions.
The values inthe display bar for ch5 change accordingly when switching.
But the groundstation doesnt see pos 2 and 5.
Could there be other resistor values?
I just finished to mod my stock TGY9x to have all 6 positions on flight modes and still have 3 positions for ch7 and full range for ch6.
So after all you don't need to modify it at all only thing that is important is to think on what order you want to place those modes.
Currently i have modes of 0,1,2 on Throttle Hold down, 3,4,5 TH up
Ch 7 comes with Trainer switch down at middle. If Gear is down with Trainer switch we can get 100% on Ch7 and when Gear up we can get 0%
Ch6 is used but normal dial buttons on TGY9x, I mostly use Pit.Trim for that due its convenient.
Here's a repeat of the key information, because it can be quite hard to find:
If you want to have six modes, you'll probably have to configure your RC transmitter to do this. That's usually accomplished by mixing a two position switch and a three position switch on your transmitter. Set your switch(es) to (ideally) produce PWM pulse widths of 1165, 1425, and 1815 microseconds or 1165, 1295, 1425, 1555, 1685, and 1815 milliseconds. (You can also do this with an analog dial, if you have one, but it's hard to reliably turn it to just the right position for six distinct settings).
How can you know what the PWM pulse widths are? Use the CLI to run the pwm test (AC2) or the Radio test (APM).
Rob
But that Switch mod is also a really cool Idea if you have a radio with a knob. Nice!
Have you Read the following page?
http://code.google.com/p/ardupilot-mega/wiki/APMModes
It explains how to set 6 modes on the T9, JR9, and Futaba 9
Tested mine with the new Mission planner today, works great
-
1
-
2
-
3
of 3 Next