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 1 Using Arduino / Programming Questions / Re: Sketch for Stepper motor?? on: February 22, 2013, 08:21:23 pm Ok I have tried that sketch but I can't figure it out... I need help trying to figure out how to keep track of how many steps the stepper takes from when it is powered up and if I can get that then I should be able to get the rest... any ideas on how to do this? Here is my code....Code:#include Stepper myStepper = Stepper(200,8,9,10,11);int ledpin = 13;int pirpin = 4;int pirstate = 0; // variable to store current pir stateint lastpirstate = 0; // variable to store last pir stateint pirpin2 = 7;int pirstate2 = 0;int lastpirstate2 = 0;int bothpirstate = 0;int lastbothpirstate = 0;void setup() {    myStepper.setSpeed(60); // sets speed of stepper    pinMode(ledpin, OUTPUT);  pinMode(pirpin, INPUT);  pinMode(pirpin2, INPUT);}void loop() {    int pirpinstate = digitalRead(pirpin);  int pirpin2state = digitalRead(pirpin2);  const int pos1 = 50;  const int pos2 = 100;     pirstate = digitalRead(pirpin);    if(pirstate != lastpirstate) {    if(pirstate == HIGH) {    digitalWrite(ledpin, HIGH);    myStepper.step(pos1);  } else {    digitalWrite(ledpin, LOW);    myStepper.step(-pos1);  }}lastpirstate = pirstate;  pirstate2 = digitalRead(pirpin2);    if(pirstate2 != lastpirstate2) {    if(pirstate2 == HIGH) {      digitalWrite(ledpin, HIGH);      myStepper.step(pos2);    } else {      digitalWrite(ledpin, LOW);      myStepper.step(-pos2);    }  }lastpirstate2 = pirstate2;}
 2 Using Arduino / Programming Questions / Re: Sketch for Stepper motor?? on: February 17, 2013, 05:02:43 pm Thanks PaulS when PIR1 is HIGH and PIR2 is HIGH is when i get confused on my programming... I will try your sketch!! thanks!
 3 Using Arduino / Programming Questions / Re: Sketch for Stepper motor?? on: February 17, 2013, 04:35:51 pm Ok sorry for being unclear....when pir1 senses motion i want stepper to step 50 steps counter clockwisewhen pir1 is low(no motion) and pir2 senses motion i want stepper to step 100 steps counter clockwisewhen pir1 is senses motion (already at the 50 step counter clockwise position) and then pir2 senses motion I want stepper to step 50 steps counter clockwise (to reach the position it supposed to be at when just pir2 senses motion.)does that make more sense? thanks
 4 Using Arduino / Programming Questions / Re: Sketch for Stepper motor?? on: February 17, 2013, 04:17:19 pm Ok thanks for your help and now that I have got that figured out I would like to add a few more pir sensors. Here is what I want to accomplish... When pir#1 goes high(senses motion) the stepper will turn to that direction and stop until it goes low then return to original position. Ok so far the sketch I have works perfectly for that. Now I add pir#2... when pir#1 is high and pir#2 goes high then it rotates to far. If pir#1 is low and pir#2 goes high then the stepper turn to the right position and works fine. Does this make sense?? Here is the code...do I need to use interrupts to accomplish this?thanksCode:#include Stepper myStepper = Stepper(200,8,9,10,11);int ledpin = 13;int pirpin = 4;int pirstate = 0; // variable to store current pir stateint lastpirstate = 0; // variable to store last pir stateint pirpin2 = 7;int pirstate2 = 0;int lastpirstate2 = 0;int LED = 12;void setup() {    myStepper.setSpeed(60); // sets speed of stepper    pinMode(ledpin, OUTPUT);  pinMode(pirpin, INPUT);  pinMode(pirpin2, INPUT);  pinMode(LED, OUTPUT);  }void loop() {    pirstate = digitalRead(pirpin);    if(pirstate != lastpirstate) {    if(pirstate == HIGH) {    digitalWrite(ledpin, HIGH);    myStepper.step(50);  } else {    digitalWrite(ledpin, LOW);    myStepper.step(-50);  }}lastpirstate = pirstate;  pirstate2 = digitalRead(pirpin2);    if(pirstate2 != lastpirstate2) {    if(pirstate2 == HIGH) {      digitalWrite(ledpin, HIGH);      myStepper.step(-100);    } else {      digitalWrite(ledpin, LOW);      myStepper.step(100);    }  }lastpirstate2 = pirstate2;}
 5 Using Arduino / Programming Questions / Re: Sketch for Stepper motor?? on: February 16, 2013, 01:32:07 pm hey I got it!!! :-) thanks for ya'lls help!!! here is the code i came up with...Code:#include Stepper myStepper = Stepper(200,8,9,10,11);int ledpin = 13;int pirpin = 4;int pirstate = 0; // variable to store current pir stateint lastpirstate = 0; // variable to store last pir stateint pos = 50;int pos2 = -50;void setup() {    myStepper.setSpeed(60); // sets speed of stepper    pinMode(ledpin, OUTPUT);  pinMode(pirpin, INPUT);  }void loop() {    pirstate = digitalRead(pirpin);    if(pirstate != lastpirstate) {    if(pirstate == HIGH) {    digitalWrite(ledpin, HIGH);    myStepper.step(pos);  } else {    digitalWrite(ledpin, LOW);    myStepper.step(pos2);  }}lastpirstate = pirstate;}
 6 Using Arduino / Programming Questions / Re: Sketch for Stepper motor?? on: February 16, 2013, 12:34:37 pm here is my latest sketch.... i'm getting hung up on my delay function or do I need to use a variable to store the value of the "pirpin"?? I am fairly new to this :-) if you can't tell but am willing to learnCode:#include Stepper myStepper = Stepper(200,8,9,10,11);int ledpin = 13;int pirpin = 4;int pos = 50;int pos2 = -50;void setup() {    myStepper.setSpeed(60); // sets speed of stepper    pinMode(ledpin, OUTPUT);  pinMode(pirpin, INPUT);  }void loop() {    if (digitalRead(pirpin) == HIGH) {    digitalWrite(ledpin, HIGH);    myStepper.step(pos);  }    if(digitalRead(pirpin) == LOW) {    digitalWrite(ledpin, LOW);    myStepper.step(pos2);  }}
 7 Using Arduino / Programming Questions / Re: Sketch for Stepper motor?? on: February 16, 2013, 12:01:29 pm Thanks for you help so far! :-) I have written a simple code to control the stepper and have it stop at 90, 180, 270, and 360 degrees then rotate back to the original starting position. It delays 1 second at each spot but I want it to stay there for as long as the pir stays high. If I take out the " delay(1000);" then it just keeps spinning until the pir goes low. Does this make sense? I will be glad to clarify more!Here is the code...Code:#include Stepper myStepper = Stepper(200,8,9,10,11);int pos = 50;int pos2 = 50;int pos3 = 50;int pos4 = 50;int pos5 = -200;void setup() {    myStepper.setSpeed(60);  }void loop() {    myStepper.step(pos);  delay(1000);  myStepper.step(pos2);  delay(1000);  myStepper.step(pos3);  delay(1000);  myStepper.step(pos4);  delay(1000);  myStepper.step(pos5);  delay(1000);  }
 8 Using Arduino / Programming Questions / Re: Sketch for Stepper motor?? on: February 15, 2013, 08:10:01 pm yes I have looked at those sketches but all they do is either go by one step at a time or keep rotating back and forth. And that is not what I want. I want to be able to tell the motor to turn to position x and stay there all day if need be...not keep moving.
 9 Using Arduino / Programming Questions / Sketch for Stepper motor?? on: February 15, 2013, 07:18:58 pm Ok I am working on a project and this is what I would like to do.When pir sensor senses motion this stepper motor https://www.sparkfun.com/products/9238? with this motor driver https://www.sparkfun.com/products/10267? would turn 90 degrees and stay there until the sensor goes low(stops sensing motion). My question is... how do I write a simple sketch to accomplish this? Here is my sketch that I want to insert the new stepper sketch into...Code:#define DIR_PIN 2#define STEP_PIN 3const int sensorPin = 4;const int ledPin = 13;void setup() {   pinMode(DIR_PIN, OUTPUT);   pinMode(STEP_PIN, OUTPUT);   pinMode(sensorPin, INPUT);  pinMode(ledPin, OUTPUT);} void loop(){     if(digitalRead(sensorPin) == HIGH) {    digitalWrite(ledPin, HIGH);  }if(digitalRead(sensorPin) == LOW) {  digitalWrite(ledPin, LOW);}}
 10 Topics / Robotics / Re: Automated focus stacking controller on: February 09, 2013, 07:06:52 pm Looks really nice!! How did you make your housing for it?
 11 Using Arduino / Motors, Mechanics, and Power / Re: 360* Servo?? on: February 06, 2013, 05:05:38 pm Thank ya'll for your help!! I wish I would have done more research on servo's before I bought one but oh well I'll find a use for it sometime. But yea I have decided to go with a stepper motor maybe one like this one https://www.sparkfun.com/products/10551 and use this motor driver https://www.sparkfun.com/products/10267 . Do you think this is a good choice or would you recommend something else?Thanks again
 12 Using Arduino / Motors, Mechanics, and Power / 360* Servo?? on: February 04, 2013, 07:45:19 pm I am working on a project and need a servo that rotates 360*. Here is what i would like to accoumplish. Have 4 pir sensors pointed in 4 different directions. When one of those senses movement my arduino uno will tell a servo to turn to that sensor. And i will have a camera mounted to it also to take a pic. So my question is.... does someone make a servo that would work for my project? Thanks for your help!
 13 Using Arduino / Programming Questions / Re: how to control servo's stopping point? on: January 05, 2013, 06:45:42 pm thanks PaulS
 14 Using Arduino / Programming Questions / Re: how to control servo's stopping point? on: January 05, 2013, 06:37:18 pm just in case you haven't figured it out by now I'm a beginner so any advice would be appreciated!!
 15 Using Arduino / Programming Questions / Re: how to control servo's stopping point? on: January 05, 2013, 06:20:57 pm the line i made runs perpendicular with the white plastic arm
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