unable to receive data in arduino from matlab

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Sravani Vanama
Sravani Vanama 2019-11-19
评论： Walter Roberson 2019-11-20
I have tried to send integer from matlab to arduino
my matlab code is
clc;
clear all;
close all;
s=serial('COM4','BAUDRATE',9600);
fopen(s);
fprintf(s,'%i',1);
fclose(s);
and my arduino code is
void setup()
{
Serial.begin(9600);
}
void loop()
{
if(Serial.available()>0)
{
int b=Serial.read();
if(v==1)
{
Serial.println(v);
}
else
{
Serial.println(v);
}
}
}
After uploading it to arduino uno and clicking on serial monitor i am not getting any output. its just blank
Is there any mistake in my code or my connectivity process??
  5 个评论
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Sravani Vanama
Sravani Vanama 2019-11-20
编辑：Sravani Vanama 2019-11-20
I am new to matlab. I am not able to understand what u have said.
Can you please tell me lines where code should be modified clearly??
I have even tried this way......then i am getting 'none' printed infinite times in serial monitor
void setup()
{
Serial.begin(9600);
}
void loop()
{
if(Serial.available()>0)
{
int v=Serial.read();
Serial.println(v);
}
else
Serial.println("none")
}
which means Serail.available() is not greater than 0.
Walter Roberson
Walter Roberson 2019-11-20
s=serial('COM4','BAUDRATE',9600);
fopen(s);
fwrite(s, uint8(1));
fclose(s);

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