Help

Hi,
   i am an engineering student, and would like to know if and how to
interface a stepper motor from a remote location.. i intend on
developing a application that could help me controll a stepper motor
from a remote location.. would also appreciate help wid any
information about which platform wud be a convinient one.

  Thankz & Regds.
Saurabh Shiralkar

On Sat, 07 Jul 2007 22:32:33 -0700, iLiKeH2O


You will need to give more information, such as the distance
(inches or miles), and whether it can be a wired connection or
wireless.

hey thanx for da feed bck.. i actually plan to make it a wireless
setup initially at a few feet distance if all works well.... den could
go further...

How to control the stepper?
Try something like this
http://www.sparkfun.com/commerce/product_info.php?products_id ƒ68

Remote control?
Use long wires, a laptop, a wireless palm pilot, or a cheap RC set.

- Daniel

thishttp://www.sparkfun.com/commerce/product_info.php?products_id ƒ68

hey thanx for the site it did give me an idea abt the way i shud be
looking at.. but it really does not help me much as i cannot afford a
device of dat cost in my currency... :) newaz thanx a lot.

It strikes me that RS232 and a $10 microcontroller is the simplest way
to do this...

RS232 is good for long cables (100 feet) and over radio. For a really
long cable use a modem; and you can buy cheap wireless modules that have
an RS232 interface. So you could remote control your stepper motor from
a PC over it's serial port. If your PC hasn't got a serial port you can
get a cheap USB-to-RS232 adapter.

Then you just need a microcontroller with a UART to control the stepper
motor - this could be a PIC, 8051 or ARM7-based micro.

Have fun :)

We'd need more specifics.  What's the application?  What sort of weight
does it have to handle?  How precise does its positioning need to be?
When you say "without any control system" what do you mean?  Servos at
the joints but no onboard computer to run the servos?  Not even any
servos?
--
As we enjoy great advantages from the inventions of others, we should
be glad of an opportunity to serve others by any invention of ours;
and this we should do freely and generously. (Benjamin Franklin)

DA had written this in response to
http://www.www.roboticscommunity.com/robotics/Help-29315-.htm  :
Mohammad Abdelaziz wrote:


Hard to tell without more information but you may look around for some
used Scorbots (ERIII of ER4 like this one
http://elabz.com/fixing-a-scorbot-er4-pc/  ) which are for sale on eBay
pretty much all the time. They have 6 x 12V DC motors, encoders on each
motor, designed to operate 0.5 lbs (~1/4 kilo) loads and have a pretty
good reach for a small desk-top setup.

What's probably more important is that many, if not most you'll see for
sale have controllers either broken, missing or of an un-useable type
(ER4PC needs a full-AT card that's hard to find and is more expensive than
the robot itself) - so you can probably get yourself a very good deal
since you don't need the controller.

Good luck!





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