Pessoal, ao tentar compilar o programa abaixo ocorreu a seguinte falha:

“Erro compilando para a placa Arduino/Genuino Uno”

 

Geralmente isso se dá por desatualização da biblioteca, assim, instalei o Adafruit MotorShield.h que era o único que faltava mas não resolveu. Alguém poderia, por favor, testar este programa, para auxiliar-me na solução desse problema?

 

#include <AFMotor.h>

// Example6 code for Brian Schmalz's Easy Driver Example page

// http://www.schmalzhaus.com/EasyDriver/EasyDriverExamples.html

#include <AccelStepper.h>

#include <Wire.h>

#include <Adafruit_MotorShield.h>

 

// Define the stepper and the pins it will use

Adafruit_MotorShield AFMS = Adafruit_MotorShield();

Adafruit_StepperMotor *motor1 = AFMS.getStepper(200, 1);

// you can change these to DOUBLE or INTERLEAVE or MICROSTEP!

 

void forwardstep() { 

  motor1->onestep(FORWARD, SINGLE);

}

void backwardstep() { 

  motor1->onestep(BACKWARD, SINGLE);

}

 

AccelStepper stepper1(forwardstep, backwardstep); // use functions to step

 

// Define our three input button pins

#define  LEFT_PIN  2

#define  STOP_PIN  3

#define  RIGHT_PIN 4

// Define our analog pot input pin

#define  SPEED_PIN A0

 

// Define our maximum and minimum speed in steps per second (scale pot to these)

#define  MAX_SPEED 500

#define  MIN_SPEED 0.1

 

void setup() {

  AFMS.begin();

    // The only AccelStepper value we have to set here is the max speeed, which is higher than we'll ever go

  stepper1.setMaxSpeed(500.0);

    // Set up the three button inputs, with pullups

 

 pinMode(LEFT_PIN, INPUT_PULLUP);

  pinMode(STOP_PIN, INPUT_PULLUP);

  pinMode(RIGHT_PIN, INPUT_PULLUP);

}

void loop() {

  static float current_speed = 0.0;         // Holds current motor speed in steps/second

  static int analog_read_counter = 1000;    // Counts down to 0 to fire analog read

  static char sign = 0;                     // Holds -1, 1 or 0 to turn the motor on/off and control direction

  static int analog_value = 0;              // Holds raw analog value.

    // If a switch is pushed down (low), set the sign value appropriately

  if (digitalRead(LEFT_PIN) == 0) {

    sign = 1;

  }

  if (digitalRead(RIGHT_PIN) == 0) {   

    sign = -1;

  }

  if (digitalRead(STOP_PIN) == 0) {

    sign = 0;

  }

  // We only want to read the pot every so often (because it takes a long time we don't

  // want to do it every time through the main loop). 

  if (analog_read_counter > 0) {

    analog_read_counter--;

  }

  else {

    analog_read_counter = 3000;

    // Now read the pot (from 0 to 1023)

    analog_value = analogRead(SPEED_PIN);

    // Give the stepper a chance to step if it needs to

    stepper1.runSpeed();

    //  And scale the pot's value from min to max speeds

    current_speed = sign * ((analog_value/1023.0) * (MAX_SPEED - MIN_SPEED)) + MIN_SPEED;

    // Update the stepper to run at this new speed

    stepper1.setSpeed(current_speed);

  }

 

  // This will run the stepper at a constant speed

  stepper1.runSpeed();

}