Trying to wrangle serial data from an Arduino

[glv]

@pl4sma2389

That’s the problem that I’m having with the code that @glv sent me, but I’m not sure that he’s thinking what I’m thinking about how I want to process the data.

I already stated:

@glv

I did not provide a complete working solution… just some code to get you started.

Adapt or rewrite your code as required and as errors show up.

Also search through the forum for some insights.

@pl4sma2389

I don’t really want someone to write my code for me, just give me some advice, clues, tips or whatever it is that I’m not picking up

I won’t write it for you; not my style.

I have been providing you hints and tips along the way.

I wrote test code to generate 10x10 grid data; it could just have easily been Lidar data.
I started with your Arduino code but don’t have the hardware so improvised.

Arduino Grid

void setup() 
  {
  Serial.begin(115200);
  delay(500);
  }

float offset;
float angle;

void loop() 
  {
  offset += 1;
   
  Serial.println("Start");
  for(int x = 0; x < 11; x++) 
    {     
    for(int y = 0; y < 11; y++) 
      {
      float xval = 64+64*sin((x+offset)*PI/10);
      float yval = 64+64*sin((y+offset)*PI/10);  

      float val = xval + yval;  // This will be used as color
      Serial.print(int(val));
      if (y < 10) Serial.print(','); 
      }
    Serial.print('\n');
    }
  Serial.println("End");
  delay(10);
}

I was able to write some Processing code to generate this:

I followed my own suggestions and generated a 2D array from the 1D array that was received:

@glv

Start with a 1D array and then pack that into a 2D array.
That was my next step… but have laundry to do and this is as far as I got.

I did provide a reference to split() the data into integers… one of the tips I provided and necessary later.

I made a 2D array from the 1D array of Strings converted to integers with split() and int().
See the reference for examples.

This is your journey… take it one step at a time.

There are resources here:

Welcome to Processing!

:)