accelstepper¶

https://www.arduino.cc/reference/en/libraries/accelstepper/

#include <AccelStepper.h>

// for the Arduino Uno + CNC shield V3 + A4988 + FL42STH47-1684A

#define MOTOR_X_ENABLE_PIN 8
#define MOTOR_X_STEP_PIN 2
#define MOTOR_X_DIR_PIN 5

AccelStepper motor_X(1, MOTOR_X_STEP_PIN, MOTOR_X_DIR_PIN); 

void setup()
{
  motor_X.setEnablePin(MOTOR_X_ENABLE_PIN);
  motor_X.setPinsInverted(false, false, true);
  motor_X.setAcceleration(20);  
  motor_X.move(200);
  motor_X.setMaxSpeed(100);
  //motor_X.setSpeed(100);
  motor_X.enableOutputs();
}

void loop()
{
  motor_X.run();
}

Arduino CNC Shield V3¶

Arduino CNC Shield Scematics V3

Driver MOTOR¶

A4988¶

Vref mesure tension entre GND et le potard
MaxCurrent=Vref x 2.5
1A => 0.4V