Conversion of RC car to StampII Control
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Hi
I'm building a robot with/for my 2 kids using a StampII.
They have a number of old 27Mhz RC 9.6V offroad cars.
I thought that one of the cars would make a great platform for the
robot since it already has a power supply, drive train , gear box and
stearing in one 'ready to roll' package.
Has anyone else already done this and can give us some tips ?
thanks in advance.
john
I'm building a robot with/for my 2 kids using a StampII.
They have a number of old 27Mhz RC 9.6V offroad cars.
I thought that one of the cars would make a great platform for the
robot since it already has a power supply, drive train , gear box and
stearing in one 'ready to roll' package.
Has anyone else already done this and can give us some tips ?
thanks in advance.
john
Comments
just go hard left, hard right, full forward and full reverse?
If you have proportional control, you can use the Stamp to simulate the
signal that comes from the radio module and operate the existing speed and
steering control. Otherwise you need to come up with some sort of electronic
speed control to deal with the motor speed.
>
> I'm building a robot with/for my 2 kids using a StampII.
>
> They have a number of old 27Mhz RC 9.6V offroad cars.
>
> I thought that one of the cars would make a great platform for the
> robot since it already has a power supply, drive train , gear box and
> stearing in one 'ready to roll' package.
>
> Has anyone else already done this and can give us some tips ?
book. I simply found the IC that was controlling it and probed each pin
while pressing the remote buttons. Pretty soon you find the outputs that
change for each remote button (they go low on mine).
What I finally did was cut the traces from those pins and connected the
pins to Stamp inputs and the traces to Stamp outputs. That way, the
remote can send signals to the Stamp and the Stamp can drive the motors.
Works great!
Al Williams
AWC
* Floating point A/D
http://www.al-williams.com/awce/pak9.htm
>
Original Message
> From: john_postoyko [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ousHC_XLjqK173s0H_VJcQQBUxXGQktLRLmEowfgXqrgGeFsfIAEAsGGsY7QpZAIUOGIul9iW6FspnQtv9Q]john_postoyko@y...[/url
> Sent: Monday, September 16, 2002 7:05 AM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] Conversion of RC car to StampII Control
>
>
> Hi
>
> I'm building a robot with/for my 2 kids using a StampII.
>
> They have a number of old 27Mhz RC 9.6V offroad cars.
>
> I thought that one of the cars would make a great platform for the
> robot since it already has a power supply, drive train , gear box and
> stearing in one 'ready to roll' package.
>
> Has anyone else already done this and can give us some tips ?
>
> thanks in advance.
>
> john
>
>
> To UNSUBSCRIBE, just send mail to:
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>
>
I know how to proceed.
Rodent wrote:Yes. Do the cars have proportional steering and speed control, or
do they
just go hard left, hard right, full forward and full reverse?
If you have proportional control, you can use the Stamp to simulate the
signal that comes from the radio module and operate the existing speed and
steering control. Otherwise you need to come up with some sort of electronic
speed control to deal with the motor speed.
>
> I'm building a robot with/for my 2 kids using a StampII.
>
> They have a number of old 27Mhz RC 9.6V offroad cars.
>
> I thought that one of the cars would make a great platform for the
> robot since it already has a power supply, drive train , gear box and
> stearing in one 'ready to roll' package.
>
> Has anyone else already done this and can give us some tips ?
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and Body of
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[noparse][[/noparse]Non-text portions of this message have been removed]
Al Williams wrote:I did this with a cheap Radio Shack robot in the 2nd edition
of my Stamp
book. I simply found the IC that was controlling it and probed each pin
while pressing the remote buttons. Pretty soon you find the outputs that
change for each remote button (they go low on mine).
What I finally did was cut the traces from those pins and connected the
pins to Stamp inputs and the traces to Stamp outputs. That way, the
remote can send signals to the Stamp and the Stamp can drive the motors.
Works great!
Al Williams
AWC
* Floating point A/D
http://www.al-williams.com/awce/pak9.htm
>
Original Message
> From: john_postoyko [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=xYzbcrpduuyGXZmeABapTxNFhNo1BgQTDRFiEiuLfs7YtWKrvP-Ts3O0E1y8fpCdke4OwpmjoXLHF8UJfNk]john_postoyko@y...[/url
> Sent: Monday, September 16, 2002 7:05 AM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] Conversion of RC car to StampII Control
>
>
> Hi
>
> I'm building a robot with/for my 2 kids using a StampII.
>
> They have a number of old 27Mhz RC 9.6V offroad cars.
>
> I thought that one of the cars would make a great platform for the
> robot since it already has a power supply, drive train , gear box and
> stearing in one 'ready to roll' package.
>
> Has anyone else already done this and can give us some tips ?
>
> thanks in advance.
>
> john
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the
> Subject and Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and Body of
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Do you Yahoo!?
Yahoo! News - Today's headlines
[noparse][[/noparse]Non-text portions of this message have been removed]
proportional steering.
Now we know what you need to control the car -- typically this is an
H-bridge for the drive motor and an H-bridge or some relays for the
steering.
As far as the steering, you could probably use the existing circuit as well,
but to control the motor speed you will need to add an H-bridge. The Stamp
will control these things.
The next thing you need to know is how much current the drive motor and
steering takes -- this will tell you how big an H-bridge you need to build.
Original Message
>
> Thanks for the starter...now when I look they do not have proportional at
least I know how to proceed.
> Rodent wrote:Yes. Do the cars have proportional steering and speed
control, or do they
> just go hard left, hard right, full forward and full reverse?