How to send serial command to Arduino through MATLAB GUI?

Hello,

I am currently doing a project to control the servo motor through the keyboard input using MATLAB GUI. I met some problem in sending serial commands to the arduino when the GUI is running. Please help me. T.T. Below is the code for MATLAB and arduino.

MATLAB s=serial('COM3','BAUD', 9600); % Make sure the baud rate and COM port is % same as in Arduino IDE fopen(s);

switch eventdata.Key case 'a' fprintf(s,100);

case 's'
    fprintf(s,101);

end

Arduino Code

#include<Servo.h> // include server library

Servo servomotor;

int poserm = 0;

int val; // initial value of input

void setup() {

Serial.begin(9600); // Serial comm begin at 9600bps

servomotor.attach(6);

}

void loop() {

if (Serial.available()) // if serial value is available

{

val = Serial.read();// then read the serial value

if (val == 100) //if value input is equals to d

{

poserm += 1; //than position of servo motor increases by 1 ( anti clockwise)

servomotor.write(poserm);// the servo will move according to position

delay(10);//delay for the servo to get to the position

}

if (val == 101) //if value input is equals to a

{

poserm -= 1; //than position of servo motor decreases by 1 (clockwise)

servomotor.write(poserm);// the servo will move according to position

delay(10);//delay for the servo to get to the position

}

[melisa samad]

hai, do you get the solution for this answer? if you have, can you with me?