AccelStepper + Buttons = Nothing! - help please

Projects Programming
1 
#include <AccelStepper.h>

// Define a stepper and the pins it will use
AccelStepper stepper = AccelStepper(1, D6, D7); // Defaults to AccelStepper::FULL4WIRE (4 pins) on 2, 3, 4, 5

int buttonPin1 = D11;
int buttonPin2 = D12;
int buttonState1 = HIGH;
int buttonState2 = HIGH;
int motorPos = 0;

void setup()
{   
    Serial.begin(9600);
    stepper.setMaxSpeed(400.0);
    stepper.setAcceleration(200);
    pinMode(buttonPin1, INPUT_PULLUP);
    pinMode(buttonPin2, INPUT_PULLUP);
}

void loop()
{    
    //digitalWrite(MS2pin, HIGH);
    buttonState1 = digitalRead(buttonPin1);
    buttonState2 = digitalRead(buttonPin2);

    if (buttonState1 == LOW) {
      Serial.println("buttonState1");
      Serial.println(buttonState1);
      motorPos = 500;
    }

    if (buttonState2 == LOW) {
      Serial.println("buttonState2");
      Serial.println(buttonState2);
      motorPos = 1000;
    }

    stepper.runToNewPosition(motorPos);
  
}

IDE version 1.8.12

I'm using a A4988 driver to power a NEMA 17 with a Wemos D1. I have confirmed that stepper motor will run to various positions with similar "runToNewPosition" code so i'm fairly confident on my wiring. I cannot however, get them to run to a certain position when a button is pressed. I have also confirmed that the button pins are at 3.3V when unpressed and 0V/grounded when pressed, which I thought i was triggering in my code. Only one of the buttons (D12) trigger a very slight movement when I press it, the other does nothing. Any help would be greatly appreciated, let me know if you need any more information.

2

Are your Serial.print() statements showing the results you expect?

...R

3

Robin2:
Are your Serial.print() statements showing the results you expect?

...R

Yes, it'll say "Moving to position 500" for example if I put that right after the move command within the IF statement, but it will only jerk slightly. The same code outside an IF with run flawlessly. Very strange

4

nilejr:
Yes, it'll say "Moving to position 500" for example

The program in your Original Post does not have "Moving to ..." so you must be talking about a different program.

If you want help then please post the correct program so we are all looking at the same thing.

...R

5

Try to write to the stepper only when the position changes instead of (re)writing to it for each iteration of the main loop.

6

So I think I found the culprit, I don't think there is enough power to pull 2 pins HIGH and also drive the stepper motor. It worked with only one button, now to figure out a double click or long hold code for another input.

7

nilejr:
So I think I found the culprit, I don't think there is enough power to pull 2 pins HIGH and also drive the stepper motor.

The stepper will require it's own power supply, it (most likely) cannot be powered by the board.