Hey guys im new to this so i cant figure this out
Im trying to make the stepper motor go clockwise and then counter clockwise
So if you think about it like a clock i want it to go clockwise until it hits the 9 and then back counter clockwise until it hits the 3 continuously.
-----12--
9 --------3--
------6------
#include <MobaTools.h>
const int stepsPerRevolution = 300; // change this to fit the number of steps per revolution
//const int rolePerMinute = 15; // Adjustable range of 28BYJ-48 stepper is 0~17 rpm
const byte stPn[] = {2,3,4,5}; //pins used
MoToStepper myStepper(stepsPerRevolution, STEPDIR);
void setup() {
myStepper.attach(stPn[0],stPn[1],stPn[2],stPn[3]);
myStepper.setSpeed(240);
// initialize the serial port:
Serial.begin(9600);
}
void loop() {
// step one revolution in one direction:
Serial.println("clockwise");
myStepper.rotate(1);
delay(500);
// step one revolution in the other direction:
Serial.println("counterclockwise");
myStepper.rotate(-1);
delay(500);
}
You are using the "drive-the-motor-endlessly" function.
Steppermotors are made for just move an exact number of steps.
There are functions that make the stepper-motor run a defined number of steps.
How many steps result in a 180 degree turn depends on
the steppermotor you are using i.e. how many full-steps are one revolution
usually this is 200 steps per revolution
your stepperdriver mode fullstep, halfstep, quarterstep etc.
You are working on an informatic project and what is needed most in an informatic project is information
post a datasheet of your stepper-motor or at least a link where you bought it or a picture with the type-number on it
post the datasheet of the stepper-driver you are using
If the stepper-driver has full/half/microstep options post a picture of how you have setup the wires/switches that define the stepmode
Did you download the documentation of the MobaTools?
there you have functions that use a number that represents degrees how much they should rotate.
each and every library included the MobaTools-library has a documentation.
And inside this documentation all functions are described what they do and how you use them. So you simply read the documentation
ya i already tried almost every function and its always the same outcome.
I replaced rotate with write(360) and got the same outcome
Im on this forums bc i hav been trying at this for hours, im a beginner
Thanks for the help
you will find the file MobaTools-241-en.pdf which is the english documentation.
You want the motor to turn an angle of 180 degrees.
Inside this PDF-file search for the word "angle"
until you find that section of the documentation that is about stepper-motors.
The MobaTools have more than just stepper-motors.
You cant search for a word in a PDF, but the word angle is in the write function which i said. The documentation says there is 32 steps per revolution but its says the steps per revolution is actually 2037 which i tried both numbers and same result. Right now it rotates back and forth rapidly
#include <MobaTools.h>
const int stepsPerRevolution = 32; // change this to fit the number of steps per revolution
//const int rolePerMinute = 15; // Adjustable range of 28BYJ-48 stepper is 0~17 rpm
const byte stPn[] = {2,3,4,5};
// initialize the stepper library on pins 8 through 11:
MoToStepper myStepper(stepsPerRevolution, STEPDIR);
void setup() {
myStepper.attach(stPn[0],stPn[1],stPn[2],stPn[3]);
myStepper.setSpeed(240);
//myStepper.setRampLen( 50 );
// initialize the serial port:
Serial.begin(9600);
}
void loop() {
// step one revolution in one direction:
Serial.println("clockwise");
myStepper.write(180);
delay(500);
// step one revolution in the other direction:
Serial.println("counterclockwise");
myStepper.write(-180);
delay(500);
}
it works both:
searching for keywords with google inside of PDFs
and searching for words inside a PDF works too.
is a way too unprecise description of what is happening.
I'm very sorry I dropped my glas-sphere and it exploded to thousands of pieces
so I'm unable to see your stepper-motor moving through the glas-sphere.
There is no way around it to describe it in words or to upload a video of it to youtube.
If you read some more in the documentation you will find another function that makes the stepper-motor run a number of steps.
give it a value and watch how much your steppermotor turns
If you want to have a different behaviour of the stepper-motor you have to describe this behaviour.
The 28BYJ-48 Stepper has 2048 steps per revolution ( in full step mode ) because there is a reduction gear inside.
You don't use a step/dir driver ( such as a A4988 ) but the ULN2003 with an unipolar stepper. That's quite different.
And be aware that the stepper methods of MobaTools are not blocking. A delay of 500ms ist to small to reach the position.
So your sketch should look like:
#include <MobaTools.h>
const int stepsPerRevolution = 2048; // change this to fit the number of steps per revolution
//const int rolePerMinute = 15; // Adjustable range of 28BYJ-48 stepper is 0~17 rpm
const byte stPn[] = {2,3,4,5};
// initialize the stepper library on pins 8 through 11:
MoToStepper myStepper(stepsPerRevolution, FULLSTEP);
void setup() {
myStepper.attach(stPn[0],stPn[1],stPn[2],stPn[3]);
myStepper.setSpeed(150); // 240 (=24 rev/min) is too fast for this stepper!
myStepper.setRampLen( 500 );
// initialize the serial port:
Serial.begin(9600);
}
void loop() {
// step one revolution in one direction:
Serial.println("clockwise");
myStepper.write(180); // go to 180° from starting position
while ( myStepper.moving() ); // wait until stepper has reached 180°
delay(500);
// step one revolution in the other direction:
Serial.println("counterclockwise");
myStepper.write(-180); // go to -180° from starting position
while ( myStepper.moving() ); // wait until stepper has reached -180°
delay(500);
}
. And I will add more examples with english comments in further versions 