MATLAB AND ARDUINO SERIAL COMMUNICATION

Serial communication between matlab and arduino by matlab GUI Push button

By changing the COM port in the code you can connect after clicking connect wait for few second and then it will works
ARDUINO CODE:
const int LED=13;
int NewValue;
void setup()
{
Serial.begin(9600);
pinMode(13, OUTPUT);
}
void loop()
{
if(Serial.available()>0)
{
NewValue=Serial.read();
if (NewValue == 100)
{
digitalWrite(LED, HIGH);

}
if(NewValue == 101)
{
digitalWrite(LED, LOW);
}
}
}