MATLAB: Can someone guide me what i m doing wrong in sending array to arduino I have to use this array further to make logic..

arduino matlabserial communication

MATLAB code is here
 > a=4:8
if ~isempty(instrfind)
fclose(instrfind)
delete(instrfind)
end
s=serial('COM3','BaudRate',9600);
fopen(s);
for f=1:5
fprintf(arduino,a(1,f)); 
pause(1)
end
arduino code is
         int data[5]={0,0,0,0,0};
const int RelayPin1=13;
const int RelayPin2=3;
const int RelayPin3=4;
const int RelayPin4=5;
const int RelayPressure=6;
void setup() { Serial.begin(9600); pinMode(2,OUTPUT); pinMode(3,OUTPUT); pinMode(4,OUTPUT); pinMode(5,OUTPUT);
pinMode(6,OUTPUT); }
void loop() { if(Serial.available()>0) { for (int i=0; i<8; i++) { data[i]=Serial.read(); // read data }
             if(data[0]<2)
             {digitalWrite (RelayPin1,LOW); }
             if(data[0]>2)
             {digitalWrite (RelayPin1,HIGH);
             delay (5000);
             }
             if(data[1]<2)
             {digitalWrite (RelayPin2,LOW); }
             if(data[1]>2)
             {digitalWrite (RelayPin2,HIGH); 
             delay(5000);}
             if(data[2]<2)
             {digitalWrite (RelayPin3,LOW); }
             if(data[2]>2)
             {digitalWrite (RelayPin3,HIGH); 
             delay(5000);}
             if(data[3]<2)
             {digitalWrite (RelayPin4,LOW); }
             if(data[3]>2)
             {digitalWrite (RelayPin4,HIGH);
             delay(5000);}
             if(data[4]>2 && data[4]<8)
             { digitalWrite (RelayPressure,LOW);}
             if(data[4]>8)
             { digitalWrite (RelayPressure,HIGH);
             delay(5000);}
       }
     if (Serial.available()<0)
     {
      digitalWrite (RelayPin1,LOW);
      digitalWrite (RelayPin2,LOW);
      digitalWrite (RelayPin3,LOW);
      digitalWrite (RelayPin4,LOW);
      digitalWrite (RelayPressure,LOW);
      digitalWrite(LED_BUILTIN,LOW);
      }
}

Best Answer

Use fwrite() to the data as bytes over the serial port
fwrite(s, a(1,f));
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