Stepper Motor Control

Lynxmotion Electronics & Software
1

I need to be able to control a Bipolar Stepper Motor (6.3v DC). Can i do it with the SSC-32 board? If so then how do i connect everything and if not then what setup do i need in order to control the stepper motor from the Atom Bot Board?

I need at least to be able to control 10 stepper motors.

Any help would be much appriciated.

Demetris

2

I don’t think that the SSC-32 can control stepper motors, but I may be wrong.

The logic behind my thinking goes: Well, if a $30 board can run stepper motors, why is everyone paying $150+ for stepper motor controllers?

But, then again, I have no experience with steppers, so that’s not much of a help.

3

So can i connect thge Stepper motor controller to the atom Bot board?

Where do i find this Controllers?

4

Here is an example of a stepper controller that is not too expensive:

ramseyelectronics.com/cgi-bi … &key=SMD1C

Pete

5

Could i connect the Brainstem Moto 1.0 module to the atom board and to the Brainstem the stepper motors? If so then how many of these could i connect to the Atom Bot board?

6

I’m not familiar with that board, but provided that it has TTL communication pins (look for pins with a TX and RX label), the Bot Board should be able to control 16 of them.

7

The board has STX and SRX pins for serial control. Will that work?

8

If S stands for serial, then I don’t think that it will work.

RS232 (serial) is 12V/-12V, whereas TTL voltage is 5V/0V.

The logic portion of the Bot Board is all carried out on 5V/0V.

I don’t think that the Bot Board would like getting 12V, or worse, -12V on one of those lines.

Hmm…
Wait a second…
There’s an RS232 to TTL converter onboard (to convert the 12V or -12V coming from your computer’s serial port to 5V or 0V logic voltage)…

Maybe you could tie the STX and SRX into the Bot Board’s serial interface…
But, then I’m not sure that you could use the port to connect to a computer, if you’re going to do that.
And, that would probably mean that you could only attatch one to the botboard.
Ok… my head hurts.

Someone who understands electronics better than me will have to get back to you on that.

By the way, with TTL (5V/0V), you connect the TX on the controller to the RX on the BotBoard, the RX on the controller to the TX on the Bot Board, and the GND on the controller to the GND on the Bot Board.

In essence, you swap the TX’s and RX’s, and connect the GND’s together.

9

from what i read in Acroname they say that to connect the Brainstem module or the CMU CAM 2 plus you need the ttl to serial connector(converter) so i guess that the signals that the modules read are TTL.

Correct me if i am wrong here.