RE: [CAD_CAM_EDM_DRO] controlling a servo or stepper by Remote Contorl?
Posted by
Tim Goldstein
on 2001-08-25 16:47:56 UTC
To use a G320 (I don't think you need a G340) to provide the propulsion for
a bot with the control signal coming from a hobby radio control unit you are
going to need to build an interface. Something like a PIC would do the job
fine. It needs to read the pulse width from the receiver which is normally a
5 Volt, positive-going pulse between 1 and 2 milliseconds (ms) long,
repeated approximately 50 times per second and then out put step pulses that
would increase be no pulse at 1.5 ms pulse from the receiver and ramp up to
a maximum at 1 & 2 ms pulse from the receiver. You would also have to change
the direction signal from high to low and low to high as the in coming
signal crosses the 1.5 ms point.
Tim
[Denver, CO]
a bot with the control signal coming from a hobby radio control unit you are
going to need to build an interface. Something like a PIC would do the job
fine. It needs to read the pulse width from the receiver which is normally a
5 Volt, positive-going pulse between 1 and 2 milliseconds (ms) long,
repeated approximately 50 times per second and then out put step pulses that
would increase be no pulse at 1.5 ms pulse from the receiver and ramp up to
a maximum at 1 & 2 ms pulse from the receiver. You would also have to change
the direction signal from high to low and low to high as the in coming
signal crosses the 1.5 ms point.
Tim
[Denver, CO]
> -----Original Message-----
>
> Hi all,
>
> This may not be the place to ask this question. I have searched for
> other groups but they are so small in group size and talent compaired
> to this one.
>
> My friend and I are interested in building a battle bot. Since I am
> also building a servo controlled CNC I thought that maybe servos or
> steppers are used to power the bots. Does anyone here know how the
> battle bots are powered? How do you convert a model RC radio to be
> used for this large scale bot? can Gecko G320/G340 be used to power
> a servo motor for a battle bot?
>
> I guess I just need some way to deliver steps and direction signals
> from a radio control unit to the Gecko's to power a servo or stepper
> for forward and reverse movement.
>
> Any help would be great!!
>
> Thanks
>
> CADMAN
>
>
>
>
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Discussion Thread
cadman@p...
2001-08-25 16:30:55 UTC
controlling a servo or stepper by Remote Contorl?
Tim Goldstein
2001-08-25 16:47:56 UTC
RE: [CAD_CAM_EDM_DRO] controlling a servo or stepper by Remote Contorl?
John and Cindy Carey
2001-08-26 10:26:04 UTC
Re: [CAD_CAM_EDM_DRO] controlling a servo or stepper by Remote Contorl?
Alan Marconett KM6VV
2001-08-26 13:25:48 UTC
Re: [CAD_CAM_EDM_DRO] controlling a servo or stepper by Remote Contorl?
info.host@b...
2001-08-26 13:42:16 UTC
Re: [CAD_CAM_EDM_DRO] controlling a servo or stepper by Remote Contorl?
Eric Keller
2001-08-26 17:06:04 UTC
Re: [CAD_CAM_EDM_DRO] controlling a servo or stepper by Remote Contorl?
HighTech
2001-08-26 17:28:57 UTC
RE: [CAD_CAM_EDM_DRO] controlling a servo or stepper by Remote Contorl?