Lectura del puerto serial e impresion de datos

[Dennis_Knutson]

If you get a timeout with a request of 100 bytes, then you still have not fixed your arduino code. Properly terminated, it will be irrelevant whether you request 16, 100, or 1000 bytes. Each will take exactly the same time. Focus on fixing your c code. You don't have an issue with LabVIEW.

[RavensFan]

Get rid of the Filtro command where you write to the serial port and read.  Then see how it works.

Did you try what I said earlier about only trying one command at a time in the loop to see how that works?  That would make it obvious if a command works, or if it is broken like your Filtro command seems like it would be.

There is nothing about those timer functions that would slow your code other than, like Dennis says, it is convoluted.  Also, what happened to your command letters?  They look different in these images than you had earlier.  You had upper case T, now you have lower case "t".  Same with H vs. h.  You never had "b" before.  Did you had that condition to your arduino code?  Because your earlier Ard. code didn't have a case for "b".

It seems like you are changing too many things in ways that just don't make sense.

[cesarjr.1991]

Do you have any idea what could be the problem in Ard. code? because I run it and it works fine looking in Ard. serial.

This is my Ard. code for printing 😕 

void loop() {
readLocation();
while(Serial.available())
{

in =(byte)Serial.read() ;
if(in == 't'){
temp = dht.readTemperature();
Serial.println(temp);
}
else if(in == 'h'){
hum = dht.readHumidity();
Serial.println(hum);
}
else if(in == 'b'){
Serial.println(50);
}
else if(in == 'a'){
Serial.println(alture,6);
}
else if(in=='l')
{
Serial.println(latitude,6);
}
else if(in == 'o'){
Serial.println(longitude,6);
}

else if(in == 'p'){
digitalWrite(solenoide1, LOW);
digitalWrite(solenoide2, LOW);
}

else if(in == 's'){
digitalWrite(solenoide1, HIGH);
digitalWrite(solenoide2, LOW);

}
else if(in == 't'){
digitalWrite(solenoide1, LOW);
digitalWrite(solenoide2, HIGH);

}

}

[RavensFan]

Try each of your commands by itself in a loop.

The ones that are correct should run fast.  The ones that are wrong will run slow and/or give you errors.

That will give you a clue where to look in your C code.

Lookiing at your latest code, I see you have lower case 't' twice.

If your character you send does not match anything in your If ElseIF C code, then nothing gets returned.  The VISA Read will timeout no matter how many bytes you read.

[cesarjr.1991]

I correct the code my friend in Ard. now it works fine, i was trying to send this data trought XBEE but i doesn't works, do you know if I have to change anything in my LabView code? I have configured the Xbee to receive and send, but i doesn't works, i believe that it's because xbee works with 8 data bits.

[Dennis_Knutson]

The serial port sends 8 bits (1 byte) at a time so your comment does not make much sense.

[cesarjr.1991]

When I work connecting Ard. directly to USB it works fine, but if I use xbee I get random values, do you know if i have to change something in my VI? Or why it's happen?

[inge123]

Hola Buenas noches.. Tengo tu mismo problema, no se si ya tienes la solucion.. mucho agradecere.. Saludos

[inge123]

buenas noches

podrias ayudarme con el diagrama completo

Saludos