Help with a little program labVIEW+Arduino

[Zuzguluddi]

Hi! I'm having troubles with this little program and cannot find a solution, anyone have a clue?

So it's really simple, I just have an arduino with a button and I want labview to read that data and store an image whenever that button is pressed

The arduino program is this one

int boton=2;

void setup() {

  pinMode(boton, INPUT);

  Serial.begin(9600);

}

void loop() {

 if(digitalRead(boton)==HIGH)

 Serial.println("1");

delay(200);

  }



And the labVIEW connections are this:

The arduino works perfect, just sends the ''1'' character to serial monitor in the IDE. But the trouble is that the case structure never gets a true value... If anyone could provide help I'll very much appreciate it.
Thanks!

[RTSLVU]

I see you are using "Bytes at Port", I suggest you watch this video: VIWeek 2020/Proper way to communicate over serial

[GerdW]

Hi Zuz,

---

@Zuzguluddi wrote:

The arduino program is this one

int boton=2;

void setup() {

  pinMode(boton, INPUT);

  Serial.begin(9600);

}

void loop() {

 if(digitalRead(boton)==HIGH)

 Serial.println("1");

delay(200);

  }

---

So your Arduino only sends "1\n". And it sends that string only when the button is "HIGH"…

I recommend to send "0\n" additionally when the button is "LOW". Otherwise the message receiver need to handle timeout errors to detect the 2nd button state!