Comment

Comment by Mike Wilson on Saturday

Thanks for the link. I'll check it out.

Comment by healthyfatboy on Saturday

Turnigy also makes a servo reverser and if I remember correctly, it will slow down the servo as well so if you use 3 Y cables, one would split front and back servos, another splits the two fronts, and the other goes to the reverser. The reverser should allow for two servos to run off the one signal.

Here's the link.

http://hobbyking.com/hobbyking/store/__8863__Turnigy_3_Channel_Serv...

Comment by Mike Wilson on Friday

@Tom,

I thought about that as well.  Looks like it will be a fun filled weekend :-).

 

....Mike

Admin Comment by Thomas J Coyle III on Friday

@Mike,

You could easily program an Arduino Pro Mini to reverse the servo direction and proportionalize it to your requirements.

Regards,

TCIII

Comment by Mike Wilson on Friday

That's what I just found out as well TC.

I'm going to look at modifying the APM code to output a mixed PWM signal on one of the unused output ports that can be used to steer the rear wheels.

 

..Mike

Admin Comment by Thomas J Coyle III on Friday

@Mike,

The skid steering function in ArduRover2 is for throttles only. It assumes that there is an ESC attached to each throttle channel. Skid steering does not provide a steering output in the traditional sense.

Regards,

TCIII

Comment by Mike Wilson on Friday

@John Moore,

 

The problem is I need to drive the rear servos in the opposite direction and also at a different steering ratio. I use only 40% on the rear wheels.

Mike

Comment by Kabir on Friday

Thanks for all the suggestions guys :)

I loved NitroRCX  cars, especially at that price but they don't ship to India. Is any kind soul willing to drop-ship for me?

Kabir

Comment by John Moore on Friday

@ Mike,

Probably your easiest method to accomplish this would be a server wire splitter.  Allowing one steering ch to drive 2 servo's.

 

John

Comment by Mike Wilson on Friday

Hi guys,

I'm looking for the best way to setup 4 wheel steering with the APM.  My Traxxas e-Maxx is setup with 4 servos and I understand that the standard APM code only has a single output for steering.  There are lots of spare outputs so I don't think it would be too difficult to add code to mix PWM signals and invert them for the rear steering.  Has anyone already done this?  I would prefer not to have to use an external mixer.  Since the new APM code supports Skid Steering, could the skid steering output be used somehow?

 

....Mike

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