Originally Posted by
Ncsqrd
So I just bought my first upgraded transmitter - Flysky Noble NB4 and I’m using the included FGr4s receiver - I drive an E-Revo 2.0 with dual servos and that’s my issue - I don’t know how to set it up in the transmitter to recognize the dual servo setup.
I have one servo plugged into channel 1 on the receiver, and I’ve tried plugging the other servo into channel 2 and the ESC in channel 3, and swapping the second servo and ESC channels (ESC into channel 2 and servo into 3) - no matter what I do, the servo plugged into channel 1 works just fine, but the other servo doesn’t move when I turn the steering wheel.
I’ve searched for the answer for hours, and I’m sure it’s something obvious that I’m missing but I’m out of ideas on what to look for. Any help offered would be appreciated.
I almost forgot - the servos I’m using are Banggood specials DSSERVO 25kg digital servos and I’m using the stock ESC that came with the car - VXL-6S
Thanks in advance.
Nate
Not sure if you still need help as you haven't posted but I did end up checking my radio. I could have sworn the NB4 let you set trigger/steering output to other channels. In any event, with the lastest software version here is how you go about doing what you specifically want:
Go to the mixes option (no, you won't have to set slave mixing) and choose the "4W" steering option. From there, choose your secondary steering output channel and then towards the bottom, you can choose what type of steering function you want. Now, you may be confused as you will notice that it appears the mixing is for 4 wheel steer vehicles but don't worry about that. You will need to choose the "same phase" steering though it won't be worded that way. Basically, just look at the diagram and choose the steering where the wheels point in the same direction or whatever setting you actually need when doing your test run.
The main reason you'd want to go about using this setup is that you can adjust the Sub-Trim on that secondary channel independently. That will allow you to center the servo horn exactly where you need it so the dual steering works uniformly. Afterwards, you can mimic the EPA on both servos so they both have the same travel. This is much easier than having to adjust links to get the steering throws to match.
You could TECHNICALLY use the mixing option where you setup a slave output channel but I think that takes more time to set properly but that's just me. This is much easier than it sounds btw; in terms of using a "Y" harness to run two servos off one channel, you can definitely go that route but due to the radio you have you'd be doing yourself a disservice. When using a Y harness, you can't set your servo sub-trim independently which is a big deal in a dual steering setup. Also, why have the extra unnecessary cable clutter?