New Quad-rotor Helicopter project
Okay,
I'm not sure how exactly sure how to explain this, so it might be a bit lengthy. I'm designing a quad-rotor helicoper, and I have quite a few questions on everything, but that will possibly be a later post. This helicopter will be very similar to this one here
The first question that I have is, about the programming and the microcontroller and stuff. I wanted to use the Propeller Robot Control Board thats used on the stingray, but the thing is that it only has slots for two dc motors. So is there any way that I could maybe add two more slots or possibly combine two Propeller Robot Control Boards?
P.s. Also I'm going to be using brushless motors for the project, so I'm not sure if that changes anything.
Thank you
Post Edited (Jeremy072021) : 11/19/2009 6:52:38 AM GMT
I'm not sure how exactly sure how to explain this, so it might be a bit lengthy. I'm designing a quad-rotor helicoper, and I have quite a few questions on everything, but that will possibly be a later post. This helicopter will be very similar to this one here

The first question that I have is, about the programming and the microcontroller and stuff. I wanted to use the Propeller Robot Control Board thats used on the stingray, but the thing is that it only has slots for two dc motors. So is there any way that I could maybe add two more slots or possibly combine two Propeller Robot Control Boards?
P.s. Also I'm going to be using brushless motors for the project, so I'm not sure if that changes anything.
Thank you
Post Edited (Jeremy072021) : 11/19/2009 6:52:38 AM GMT
Comments
for a quad-rotor helicopter you have to change the rotation-speed very quickly
I'm not an expert about that but I think using motorcontrollers that are designed
especially for brushless motors are much better suited.
Somebody here in the forum made such a project with a propeller
but I don't remember the name
best regards
Stefan
We put a brushless driver in the ObEx a while back; it works quite well for hard-disk motors.
http://obex.parallax.com/objects/414/
Max shaft speed is ~100 Hz, then the spin code gets bogged down. Am working on a PASM version that should go as fast as the motor/TIPs allow. How fast do you need?
i would be quite interested to see if this code would drive a quad.
Cheers!
Paul Rowntree