Blynk not working with Adafruit Motorshield V2.3

Need Help With My Project
1

Hello,

I have some problems when using Blynk and the Adafruit Motorshield V2.3 on my Arduino Uno R3. I have a HC-05 Bluetooth module to work with Blynk and a stepper motor attached to the Motorshield. I can control the on-board LED via the Blynk app and I can get the stepper motor to rotate when running the test program from Adafruit, however, when I try to combine both so I can control the stepper motor using Bluetooth on my cellphone the motor won’t turn anymore, while I am still able to control the LED.

// BLUETOOTH/BLYNK STUFF #################################
#define BLYNK_USE_DIRECT_CONNECT

// You could use a spare Hardware Serial on boards that have it (like Mega)
#include <SoftwareSerial.h>
SoftwareSerial DebugSerial(0, 1); // RX, TX

#define BLYNK_PRINT DebugSerial
#include <BlynkSimpleSerialBLE.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "auth_code";

// ADAFRUIT MOTORSHIELD STUFF ###############################
#include <Wire.h>
#include <Adafruit_MotorShield.h>
#include "utility/Adafruit_MS_PWMServoDriver.h"

// Create the motor shield object with the default I2C address
Adafruit_MotorShield AFMS = Adafruit_MotorShield(); 
// Or, create it with a different I2C address (say for stacking)
// Adafruit_MotorShield AFMS = Adafruit_MotorShield(0x61); 

// Connect a stepper motor with 200 steps per revolution (1.8 degree)
// to motor port #2 (M3 and M4)
Adafruit_StepperMotor *myMotor = AFMS.getStepper(200, 2);

void setup()
{
  // Debug console
  DebugSerial.begin(9600);

  // Blynk will work through Serial
  // 9600 is for HC-06. For HC-05 default speed is 38400
  // Do not read or write this serial manually in your sketch
  Serial.begin(9600);
  Blynk.begin(Serial, auth);

  AFMS.begin();  // create with the default frequency 1.6KHz
  myMotor->setSpeed(10);  // 10 rpm
}

BLYNK_WRITE(V1)
{
  int pinValue = param.asInt();
  if(pinValue == 1)
  {
    myMotor->step(35, FORWARD, SINGLE); //It wont rotate the stepper
    myMotor->release();
    digitalWrite(13, pinValue); //It will execute this line, the LED is on
  }else
  {
//    myMotor->release();
    digitalWrite(13, pinValue);
  }
}


void loop()
{
//  myMotor->step(100, FORWARD, SINGLE); 
//  myMotor->step(100, BACKWARD, SINGLE);
  Blynk.run();
}

When commenting out the Blynk.begin(Serial, auth) the two lines in void loop() suddenly start working again…

Thanks in advance

2

Finally got it working!!!
Apparantly (I do not now why) doesn’t it work when calling Blynk.begin(Serial, auth), but it does work when calling Blynk.config(Serial, auth).

// BLUETOOTH/BLYNK STUFF #################################
#define BLYNK_USE_DIRECT_CONNECT

// You could use a spare Hardware Serial on boards that have it (like Mega)
#include <SoftwareSerial.h>
SoftwareSerial DebugSerial(0, 1); // RX, TX

#define BLYNK_PRINT DebugSerial
#include <BlynkSimpleSerialBLE.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "7fa0ea4720e0427fbd2875cb9c24e280";

// ADAFRUIT MOTORSHIELD STUFF ###############################
#include <Wire.h>
#include <Adafruit_MotorShield.h>
#include "utility/Adafruit_MS_PWMServoDriver.h"

// Create the motor shield object with the default I2C address
Adafruit_MotorShield AFMS = Adafruit_MotorShield(); 
// Or, create it with a different I2C address (say for stacking)
// Adafruit_MotorShield AFMS = Adafruit_MotorShield(0x70); 

// Connect a stepper motor with 200 steps per revolution (1.8 degree)
// to motor port #2 (M3 and M4)
Adafruit_StepperMotor *myMotor = AFMS.getStepper(200, 2);

void setup()
{
  AFMS.begin();  // create with the default frequency 1.6KHz
  myMotor->setSpeed(10);  // 10 rpm
  // Debug console
  DebugSerial.begin(9600);

  // Blynk will work through Serial
  // 9600 is for HC-06. For HC-05 default speed is 38400
  // Do not read or write this serial manually in your sketch
  Serial.begin(9600);
//  Blynk.begin(Serial, auth);
  Blynk.config(Serial, auth);

  
}

BLYNK_WRITE(V1)
{
  int pinValue = param.asInt();
  if(pinValue == 1)
  {
    myMotor->step(35, FORWARD, SINGLE); //It wont rotate the stepper
    myMotor->release();
    digitalWrite(13, pinValue); //It will execute this line, the LED is on
  }else
  {
    myMotor->release();
    digitalWrite(13, pinValue);
  }
}


void loop()
{
//  myMotor->step(100, FORWARD, SINGLE); 
//  myMotor->step(100, BACKWARD, SINGLE);
  Blynk.run();
}