Making stepper motor spin with IR sensor no remote

Projects Programming
1

I'm in my high school engineering class and can't figure out how to code things. I need to make a stepper motor spin using an IR sensor. I've tried my best couldn't figure it out. I have a code right now I'll put it here please let me know what I'm doing wrong


#include <Stepper.h>

const int stepsPerRevolution = 200; 

Stepper myStepper(stepsPerRevolution, 3, 4, 5, 6);
void setup()
{
  pinMode(7,INPUT);
  Serial.begin(9600);
}

void loop() {
  if (digitalRead(7)== HIGH)
  {
      Serial.println("clockwise");
      myStepper.step(stepsPerRevolution);

    delay(1000);
  }
  else
  {


    Serial.println("stop");
    delay(1000);


  }
}
3

What is that IR sensor detecting? Is it active high or low sensor?

1 Like
4

we are unable to make the stepper spin when the IR sensor detects something

5

What isn't working as expected?

Does it print the "clockwise" and "stop" messages as expected when you tweak the IR sensor? If so, it means your sensor and sensor-reading code is working.

6

If you don't set the speed, it may try to step faster than the motor can physically move.

Try:

#include <Stepper.h>

const int stepsPerRevolution = 200; 

Stepper myStepper(stepsPerRevolution, 3, 4, 5, 6);
void setup()
{
  pinMode(7,INPUT);
  Serial.begin(9600);
  myStepper.setSpeed(60);  // <<<<  set a speed other than "infinite"
}

void loop() {
  if (digitalRead(7)== HIGH)
  {
      Serial.println("clockwise");
      myStepper.step(stepsPerRevolution);
      delay(1000);
  }
  else
  {
    Serial.println("stop");
    delay(1000);
  }
}
8

What do you have connected between pins 3, 4, 5 & 6 and the motor?

1 Like
9

Yeah I made them both work separately and then ended up having trouble in the combining phase but ended up figuring it out in the end.

10

Thanks for telling me to set a speed I think that's what helped me finally get it up and running.

Here's the fully finished code


#include <Stepper.h>

const int stepsPerRevolution = 360; 

Stepper myStepper(stepsPerRevolution, 3, 4, 5, 6);
void setup()
{
  pinMode(7,INPUT);
  Serial.begin(9600);
  myStepper.setSpeed(60);  
}

void loop() {
  if (digitalRead(7)== LOW)
  {
      Serial.println("clockwise");
      myStepper.step(stepsPerRevolution);
      delay(1000);
  }
  else
  {
    Serial.println("stop");
    delay(1000);
  }
}
1 Like
11

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