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EDIT: I managed to find a wide variety of Stepper Motor Couplers on ebay, I opted for 5x8mm as this was the closest match I could find. thanks for that. Final question, does anyone know where I can get some kind of couplings for this so I can connect the shaft to other things? I'm very new to hardwa...

thanks for the code, can someone please advise how the circuit would look if I wanted to control the motor with a button? I'm guessing rough code would be: buttonState = digitalRead(buttonPin); // check if the pushbutton is pressed. // if it is, the buttonState is HIGH: if (buttonState == HIGH) { //...