Arduino motor shield and ethernet shield

Hey,

I have an Arduino Uno rev3, Arduino motor shield and a Arduino Ethernet shield. I can run the ethernet shield and I can rotate the Stepper motor, but I can’t controll the stepper motor through the ethernet shield.
The motor shield reacts, but it does not turn. the B+ Led also never flashes.

It is a nema 14 bipolar stepper motor.

Here is the code:

/*
 Created by Rui Santos
 Visit: http://randomnerdtutorials.com for more arduino projects

 Arduino with Ethernet Shield
 */

#include <SPI.h>
#include <Ethernet.h>




byte mac[] = { 0x90, 0xA2, 0xDA, 0x0F, 0x2A, 0x25 };  //physical mac address
byte ip[] = { 10, 0, 1, 196 };                     // ip in lan (that's what you need to use in your browser. ("192.168.1.178")
EthernetServer server(80);                             //server port     
String readString;

                    #define DirA  12
                    #define DirB  13
                    #define BrakeA  9
                    #define BrakeB  8
                    #define PWMA  3
                    #define PWMB  11
                    
                    int delaylegnth = 1000;


void setup() {
 // Open serial communications and wait for port to open:
  Serial.begin(9600);
    
  // start the Ethernet connection and the server:
  Ethernet.begin(mac, ip);
  server.begin();
  Serial.print("server is at ");
  Serial.println(Ethernet.localIP());


                        pinMode(DirA, OUTPUT); //CH A -- HIGH = forwards and LOW = backwards???
                        pinMode(DirB, OUTPUT); //CH B -- HIGH = forwards and LOW = backwards???
                        
                        //establish motor brake pins
                        pinMode(BrakeA, OUTPUT); //brake (disable) CH A
                        pinMode(BrakeB, OUTPUT); //brake (disable) CH B


}


void loop() {
  // Create a client connection
  EthernetClient client = server.available();
  if (client) {
    while (client.connected()) {   
      if (client.available()) {
        char c = client.read();
     
        //read char by char HTTP request
        if (readString.length() < 100) {
          //store characters to string
          readString += c;
          //Serial.print(c);
         }

         //if HTTP request has ended
         if (c == '\n') {          
           Serial.println(readString); //print to serial monitor for debuging
     
           client.println("HTTP/1.1 200 OK"); //send new page
           client.println("Content-Type: text/html");
           client.println();     
           client.println("<HTML>");
           client.println("<HEAD>");
           client.println("<meta name='apple-mobile-web-app-capable' content='yes' />");
           client.println("<meta name='apple-mobile-web-app-status-bar-style' content='black-translucent' />");
           client.println("<TITLE>Stepper Control</TITLE>");
           client.println("</HEAD>");
           client.println("<BODY>");
           client.println("<H1>Stepper Control</H1>");
           client.println("<hr />");
           client.println("
");  
           client.println("
");  
           client.println("<a href=\"/?button1on\"\">ON</a>");
           client.println("<a href=\"/?button1off\"\">OFF</a>
"); 
           client.println("
"); 
           client.println("</BODY>");
           client.println("</HTML>");
     
           delay(1);
           //stopping client
           client.stop();
           //controls the Arduino if you press the buttons
           
           if (readString.indexOf("?button1on") >0){
                for(int stepp = 0; stepp < 200; stepp++)  
                { 

                                digitalWrite(BrakeA, LOW);  //ENABLE CH A
                                digitalWrite(BrakeB, HIGH); //DISABLE CH B
                              
                                digitalWrite(DirA, HIGH);   //Sets direction of CH A
                                analogWrite(PWMA, 255);   //Moves CH A
                                
                                delay(delaylegnth);
                                
                                digitalWrite(BrakeA, HIGH);  //DISABLE CH A
                                digitalWrite(BrakeB, LOW); //ENABLE CH B
                              
                                digitalWrite(DirB, LOW);   //Sets direction of CH B
                                analogWrite(PWMB, 255);   //Moves CH B
                                
                                delay(delaylegnth);
                                
                                digitalWrite(BrakeA, LOW);  //ENABLE CH A
                                digitalWrite(BrakeB, HIGH); //DISABLE CH B
                              
                                digitalWrite(DirA, LOW);   //Sets direction of CH A
                                analogWrite(PWMA, 255);   //Moves CH A
                                
                                delay(delaylegnth);
                                  
                                digitalWrite(BrakeA, HIGH);  //DISABLE CH A
                                digitalWrite(BrakeB, LOW); //ENABLE CH B
                              
                                digitalWrite(DirB, HIGH);   //Sets direction of CH B
                                analogWrite(PWMB, 255);   //Moves CH B
                                
                                delay(delaylegnth);                  
                  
                } 
           }
           if (readString.indexOf("?button1off") >0){
                    
                                           
                                
                   
           }
            //clearing string for next read
            readString="";  
           
         }
       }
    }
}
}

Thank you very much
Harry

How are you powering all of this? Motors need external power supplies.

I plugged a power supply to the motor shield. on the vin and gnd port.

Do you find the mistake in your code because im very interesting in what you do here.