previously, the 3D display was working by reading the information from the sensor, but now the 3D display screen opens, but the figure does not appear.

Processing Electronics (Arduino, etc.)
1

import processing.serial.*;
import java.awt.event.KeyEvent;
import java.io.IOException;

Serial myPort;

String data=“”;
float roll, pitch;

void setup() {
size (960, 640, P3D);
myPort = new Serial(this, “COM255”, 9600); // starts the serial communication
myPort.bufferUntil(‘\n’);
}

void draw() {
translate(width/2, height/2, 0);
background(33);
textSize(22);
text("Roll: " + parseInt(roll) + " Pitch: " + parseInt(pitch), -100, 265);

// Rotate the object
rotateX(radians(roll));
rotateZ(radians(-pitch));

// 3D 0bject
textSize(30);
fill(0, 76, 153);
box (386, 40, 200); // Draw box
textSize(25);
fill(255, 255, 255);
text(" Yeditepe Otomotiv Kulübü", -183, 10, 101);

//delay(10);
//println(“ypr:\t” + angleX + “\t” + angleY); // Print the values to check whether we are getting proper values
}

// Read data from the Serial Port
void serialEvent (Serial myPort) {
// reads the data from the Serial Port up to the character ‘.’ and puts it into the String variable “data”.
data = myPort.readStringUntil(‘\n’);

// if you got any bytes other than the linefeed:
if (data != null) {
data = trim(data);
// split the string at “/”
String items = split(data, ‘/’);
if (items.length > 1) {

  //--- Roll,Pitch in degrees
  roll = float(items[0]);
  pitch = float(items[1]);
}

}
}

2

Please format your source code. Use the preformatted text button on the menu bar or include your code between two sets of three graeve characters like this:

```

// your code here

```

  1. For openers shouldn’t items be defined like this:

String items = split(data, ‘/’);

  1. The following source code works on my system (macOS). Note that I set the baud rate to 115,200 instead of 9600.
import processing.serial.*;
import java.awt.event.KeyEvent;
import java.io.IOException;

Serial myPort;

String data = "";
float roll, pitch;
float angleX, angleY;

void setup() {
  size (960, 640, P3D);
  printArray(Serial.list());
  // Open the port you are using at the rate you want:
  myPort = new Serial(this, Serial.list()[4], 115200);
  myPort.bufferUntil('\n');
}

void draw() {
  translate(width/2, height/2, 0);
  background(33);
  textSize(22);
  text("Roll: " + parseInt(roll) + " Pitch: " + parseInt(pitch), -100, 265);
  // Rotate the object
  rotateX(radians(roll));
  rotateZ(radians(-pitch));
  // 3D 0bject
  textSize(30);
  fill(0, 76, 153);
  box (386, 40, 200); // Draw box
  textSize(25);
  fill(255, 255, 255);
  text(" Yeditepe Otomotiv Kulübü", -183, 10, 101);

  //delay(10);
 // println("ypr:\t" + angleX + "\t" + angleY); // Print the values to check whether we are getting proper values
}

// Read data from the Serial Port
void serialEvent (Serial myPort) {
  // reads the data from the Serial Port up to the character ‘.’ and puts it into the String variable “data”.
  data = myPort.readStringUntil('\n');
  // if you got any bytes other than the linefeed:
  if (data != null) {
    data = trim(data);
    println(data);
    // split the string at “/”    
    String[] items = split(data, '/');
    if (items.length > 1) {
      //--- Roll,Pitch in degrees
      roll = float(items[0]);
      pitch = float(items[1]);
    }
    
  }
}

Arduino code for testing:

#include <Adafruit_MPU6050.h>
#include <Adafruit_Sensor.h>
#include <Wire.h>

Adafruit_MPU6050 mpu;

void setup(void) {
  Serial.begin(115200);

  // Try to initialize!
  if (!mpu.begin()) {
    Serial.println("Failed to find MPU6050 chip");
    while (1) {
      delay(10);
    }
  }
  Serial.println("MPU6050 Found!");
  // set gyro range to +- 500 deg/s
  mpu.setGyroRange(MPU6050_RANGE_500_DEG);
  // set filter bandwidth to 21 Hz
  mpu.setFilterBandwidth(MPU6050_BAND_21_HZ);
  delay(100);
}

void loop() {
  /* Get new sensor events with the readings */
  sensors_event_t a,g,t;
  mpu.getEvent(&a,&g, &t);
  /* Print out the values */
  Serial.print(g.gyro.x);
  Serial.print('/');
  Serial.print(g.gyro.y);
  Serial.print('/');
  Serial.print(g.gyro.z);
  Serial.println("");
  delay(500);
}

Console output:

gyro
gyro302×560 10.5 KB

The bar also rotated depending on the values.