Hello,
I am trying to send data from MATLAB 2018Ra to Arduino software. I am using Chestnut PCB borad, belonging to Openbionics. I am using the follwing code in MATLAB:
if ~isempty(instrfind)
fclose(instrfind);
delete(instrfind);
end
a = serial('COM8','BaudRate',115200,'TimeOut',5,'Terminator', 'CR');
fopen(a);
sendData=7;
fprintf(a,'%i',sendData);
the matlab is able to send the data and the arduino is recieving it, but the output is not as required. This is my arduino code:
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
}
void loop()
{
if(Serial.available()>0)
{
int command = Serial.read();
// char ch = Serial.read();
// // show the byte on serial monitor
// delay(500);
// Serial.print(ch, HEX);
if(command == 7)
{
delay(500);
Serial.println("i");
}
}
else
{
delay(500);
Serial.println("NON");
}
}
It is always printing "NON". What I was expecting is to print i.
I know the arduino reads data in bytes. So, I even tried 55 (ASCII value of 7), but still no change. I also tried to use atoi function, but there is no change. Instead of using atoi() function we can also use command == no. of bytes(7) as I had done above, but I dont understand how many bytes does ardiuno recognise. I used the command Serial.readBytes, but there is always error. Does anyone know how to read data in arduino sent from MATLAB?
I also used
byte i;
void setup() {
Serial.begin(115200);
}
void loop()
{
if(Serial.available()>0)
{
delay(500);
i = Serial.read();
Serial.print(i);
}
else
{
delay(500);
Serial.println("NON");
}
}
it is printing NON not 'i', even though i have sent the data.
