In case anyone is interested, this inexpensive stepper motor ($2-$8/each) works with the t3. No reason it shouldn't, but just thought I'd mention it.
Here's my video of it working:
http://www.youtube.com/watch?feature=player_detailpage&v=mUiNXJ3U0so
I don't really know much about how to operate it yet. It's not clear to me how many steps there are, and how the gearing alters the equation.
I don't know how many steps I should pass the Stepper class, and I'm not sure if the speed is working correctly for me, and what the meaning of full-step and half-step is and how that affects things.
Working mostly from here
http://arduino-info.wikispaces.com/SmallSteppers
And here's a datasheet
https://bitbucket.org/fdion/pi-a-sketch/downloads/Stepper-Motor-28BJY-48-Datasheet.pdf
I altered the arduino stepper motor a bit. Code below:
Here's my video of it working:
http://www.youtube.com/watch?feature=player_detailpage&v=mUiNXJ3U0so
I don't really know much about how to operate it yet. It's not clear to me how many steps there are, and how the gearing alters the equation.
I don't know how many steps I should pass the Stepper class, and I'm not sure if the speed is working correctly for me, and what the meaning of full-step and half-step is and how that affects things.
Working mostly from here
http://arduino-info.wikispaces.com/SmallSteppers
And here's a datasheet
https://bitbucket.org/fdion/pi-a-sketch/downloads/Stepper-Motor-28BJY-48-Datasheet.pdf
I altered the arduino stepper motor a bit. Code below:
Code:
/*
Stepper Motor Control - one revolution
This program drives a unipolar or bipolar stepper motor.
The motor is attached to digital pins 8 - 11 of the Arduino.
The motor should revolve one revolution in one direction, then
one revolution in the other direction.
Created 11 Mar. 2007
Modified 30 Nov. 2009
by Tom Igoe
*/
#include <Stepper.h>
const int stepsPerRevolution = 64; // change this to fit the number of steps per revolution
//const int stepsPerRevolution = 500; // change this to fit the number of steps per revolution
// for your motor
//const int stepsPerRevolution = 4096;
// initialize the stepper library on pins 8 through 11:
//Stepper myStepper(stepsPerRevolution, 8,9,10,11);
Stepper myStepper(stepsPerRevolution, 8,10,9,11);
void setup() {
// set the speed at 60 rpm:
myStepper.setSpeed(400);
// initialize the serial port:
Serial.begin(9600);
}
void loop() {
// step one revolution in one direction:
Serial.println("clockwise");
myStepper.step(stepsPerRevolution*32);
delay(2000);
// step one revolution in the other direction:
Serial.println("counterclockwise");
myStepper.step(-stepsPerRevolution*32);
delay(2000);
}