Arduino, as a SCOPE

Processing Electronics (Arduino, etc.)
1

hi
I´m doing a proyect, and i need use a scope; i found this code:

import processing.serial.Serial;
import processing.serial.*;

Serial myPort;
int xPos=1;

void setup (){
  size(400,300);
  
  println(Serial.list()); //here is the error

  myPort = new Serial(this,Serial.list()[0],9600);
  //myPort.bufferUntil ('\n');
  background(0);
             }
void draw () {
 
             }
void serialEvent(Serial myPort){
  
  String inString = myPort.readStringUntil('\n');
  
  if (inString != null){
    
    inString=trim(inString);
    
    float inByte = float(inString);
    inByte = map(inByte,0,1023,0,height);
    
    stroke(127,34,255);
    line(xPos,height, xPos,height-inByte);
    
    if(xPos>=width){
      xPos = 0;
      background(0);
                   }
    else{
      xPos++;
        }
                       }
                               }

Processing 3.5.3 show me this:
Type String[] of the last argument to method println(Object…) doesn’t exactly match the vararg parameter type. Cast to Object[] to confirm the non-varargs invocation, or pass individual arguments of type Object for a varargs invocation.

and don´t show the signal tested.what should i do?

1 Like
2

Please go back and edit your post, select your code and hit the </> button to format your text as code. As it is right now, some characters might be missing. We need to see a fully formatted code to address this issue.

What line shows the error at by the way?

Kf

3

Also, you are drawing inside your serialEvent() function. Accessing your canvas should be done inside your draw(). In other words, move anything that touches the sketch to draw().

Kf

1 Like
4

the error appears at the 10th line

5

the measured value on a arduino might be 0 … 1023
same as you suggest in the map function.
so i see no use to try to convert that value from string into a float.

anyhow i recommend that you print that ( cleaned up ) string to console first
to see what you really get from serial port.
/ and if it match with what you see in the arduino IDE monitor,
after upload your arduino sketch

6

You should use printArray() based on this link.

Kf

7

Were you able to resolve this issue?
and get your processing/arduino scope running?