Take two values from Arduino and display in C#

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I have two Ultrasonics linked in my Alpha, and I’m using this code to read their values normally:

#include <Ultrasonic.h>

Ultrasonic ultrasonic(11, 12);
Ultrasonic ultrasonic1(8,9);  

const int TRIG = 8;
const int ECHO = 9;

const int TRIG2 = 11;
const int ECHO2 =12;

void setup() {

  Serial.begin(9600);

  pinMode (TRIG,OUTPUT);
  pinMode (ECHO,INPUT);

  pinMode (TRIG2,OUTPUT);
  pinMode (ECHO2,INPUT);

}


void loop() {

 int data = GetUltra(TRIG,ECHO);
 int data2 = GetUltra(TRIG2,ECHO2);
 char recep = data+"_"+data2;
 Serial.println(recep);
delay(200);

}

double GetUltra(int trig, int echo){

   digitalWrite (trig,LOW);
   delayMicroseconds(2);
   digitalWrite (trig,HIGH);
   delayMicroseconds(8);
   digitalWrite (trig,LOW);

       double distance = (pulseIn(echo, HIGH) )*343.2 / 20000;
       return distance;

}

And now, I’m trying to read the values in my system in visual Studio, using Split. However, returns the value of only 1 number

private void button1_Click(object sender, EventArgs e)
{
    message = porta.ReadLine();
    Receptor = message.ToString().Split('_');
    MessageBox.Show("message2" + Receptor[0]);
    MessageBox.Show("message2" + Receptor[1]);

}

Did I do something wrong? I’m not following the right thought?

c# arduino
  • 2

    What is the value of message received at C#?

  • Well returned me a very odd value with characters and number(ex: @#sadv4355345@@#$%@),I’m suspicious of a short that is coming in Arduino,I’ll take some equipment and redo the test

  • Your code is correct. You have checked whether the serial monitor given is shown correctly?

  • @Iurypereira is getting the shape characters strange, This indicates that the speed of the serial port configured in Arduino is different from that configured in C#. Another important detail, the message may not be complete, so I recommend having a message finalizer. If I need to pass you my communication code.

1 answer

0

I believe the problem is here on this line:

char recep = data+"_"+data2;

You are using the type "char" when you should actually use the type "string".

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