yeah... well, it depends what wood it is. IF you do it too thick, it will either a) be hard turning or more work to turn or b) not even turn at all.

Uh, no. The material that the chassis is made with will have no influence on turning capability. How well it turns is all related to the configuration of the motors, the kind of wheels used, etc. If it works as planned, it should be able to rotate one set of wheels forward, while rotating one set of wheels backward, yielding a turn radius of essentially zero.

And yes, I agree that DTMF does have good frequency. I've worked with it a lot and it's easy to use on literally any electronic you choose.

What on earth do you mean by "DTMF does have good frequency"? That just makes no sense.

But when did you build more robots? this is the first time that i've heard that you have.

I built one last year that utilized an optoisolated relay controller interface that I designed to work over WiFi. It worked really well. It was just bulky. I might make a post about it sometime.

about the text messaging. i was using that as an example, as in you have to be quick about it, especially depending on what speed you plan on using for your motor. You would

I tested out the interface in general the other day and it's very accurate and responsive. I don't anticipate any problems.