display the image for a cmucam that is directly connected

cmucam_test.pde

import processing.serial.*;

Serial cmucam;

void setup () {
  cmucam = new Serial(this, "/dev/tty.usbserial-A400C1Q8", 115200);
  size(200, 200);
  delay(1500);
  cmucam.write("RS\r");
  delay(150);
  frameRate(4);
}

void draw () {
  //byte buffer[1024*50];
  background(123);
  int[] buffer = new int[15];
  int x=0;
  int y=-1;
  int px=0;
  
  cmucam.write("SF\r");
  while(true) {
    while(cmucam.available()<1);
    int read = cmucam.read();
    if(read == 1) {
      while(cmucam.read() != 2);
    }else if(read == 2) {
      x=0;
      y++;
    }else if(read == 3) {
      break;
    }else{
      buffer[px++] = read;
      if(px==3) {
        px=0;
       // println(buffer[0] + " " +buffer[1] + " " + buffer[2]);
       set(x++,y,color(buffer[0], buffer[1], buffer[2]));
      }
    }
  }
  
}