PLEASE HELP! Serial Error

system · December 29, 2012, 8:12am

This is the code I worked on over summer and it worked perfectly fine. Now I after a few months, it magically doesn't want to work anymore. The following is my ARDUINO code:

[code]int ledPin;
int ledPin13 = 13;
int ledPin12 = 12;
int ledPin11 = 11;
int sensorPin = A2;
int sensorValue = 0;
int analogPin = 0;
char c = 0;

void setup()
{
    pinMode( ledPin13, OUTPUT );
    pinMode( ledPin12, OUTPUT);
    pinMode( ledPin11, OUTPUT);
    Serial.begin( 57600 );
}

void loop()
{
    // Wait for a character to arrive at the serial port.
    if( Serial.available() > 0 )
    {
        // Read one byte (character).
        c = Serial.read();
        switch( c )
        {
            case 'e':
                Serial.println("case e received");
                digitalWrite( ledPin13, HIGH );
                Serial.println("Pin 13 HIGH");
                break;
            case 'i':
                Serial.println("case i received");
                digitalWrite( ledPin12, HIGH );
                Serial.println("Pin 12 HIGH");
                break;
            case 'q':
                Serial.println("case q received");
                sensorValue = analogRead( sensorPin )/32;
                Serial.print(sensorValue);
                analogWrite(ledPin11, sensorValue);
                Serial.println("Pin 11 HIGH");
                break;
            case 'z':
                Serial.println("case z received");
                digitalWrite( ledPin13, LOW );
                Serial.println("Pin 13 LOW");
                break;
            case 'p':
                Serial.println("case p received");
                digitalWrite( ledPin12, LOW );
                Serial.println("Pin 12 LOW");
                break;
            case 'l':
                Serial.println("case l received");
                digitalWrite( ledPin11, LOW );
                Serial.println("Pin 11 LOW");
                break;
        }
    }
}

[/code]

Next is my PROCESSING code:

import processing.serial.*; //Import the serial library into your sketch
import cc.arduino.*;        //Import the Arduino-Firmata library into your sketch
Arduino arduino;      //Create an instance of Arduino named arduino (can be any name) 

char e;
int ledPin;
char serial;
Serial scope;
String adaptor= "/dev/tty.usbmodem1a21";

void portConnect(){
    int portNumber = 99;
    String [] ports;
    println(Serial.list());
    ports = Serial.list();
      for(int j = 0; j< ports.length; j++) { 
    if(adaptor.equals(Serial.list()[j])) portNumber = j;         
    }
    if(portNumber == 99) portNumber = 0;
    String portName = Serial.list()[portNumber]; 
    println("Connected to "+portName);
    scope = new Serial(this, portName, 57600);
    scope.bufferUntil(10);
 }

void serialEvent(Serial scope) {  // this gets called every time a line feed is received
  String recieved = scope.readString() ;  
          println(recieved + " from serial port");  // show it at the bottom of the processing window
// also do the stuff you want to do when you get things back from the arduino
}

void setup() {
  size(200, 200);
print(arduino.list());  
  arduino = new Arduino(this, Arduino.list()[0], 57600); //defines arduino our board and sets the communication rate
  arduino.pinMode(ledPin, Arduino.OUTPUT);
  }

void keyPressed() {
    print(key);
    delay(10);
    switch (key) {
      case 'e':
      case 'E':
        scope.write('e');
      break;
      case 'i':
      case 'I':
        scope.write('i');
      break;
      case 'q':
      case 'Q':
        scope.write('q');
      break;
      
    }
  };
  


void keyReleased() {
    delay(10);
    switch (key) {
      case 'e':
      case 'E':
      scope.write('z');
      break;
      case 'i':
      case 'I':
        scope.write('p');
      break;
      case 'q':
      case 'Q':
        scope.write('l');
      break;
    }
}

The error I am getting is: Error inside Serial.<init.()

and it highlights the following code:
arduino = new Arduino(this, Arduino.list()[0], 57600); //defines arduino our board and sets the communication rate

I have no idea what is wrong.

Please help!

Grumpy_Mike · December 29, 2012, 9:14am

You are trying to connect the same serial port to two things, one is called port the other is called arduino. There is only one port and it can only be connected to one thing.
Part of this looks like my code but the Firmata part is not. The code you have for Processing is a mess.

system · December 29, 2012, 9:25am

Hi,

Is there anyway you can help assist me with getting this code corrected? I am not an expert programmer and I had help with this code a while back (when it worked, but now doesn't).

Matt

Grumpy_Mike · December 29, 2012, 9:27am

Code does not do that, it will work like it always did, what has probbly happened is that you have changed something that you do not know about.
What is the code supposed to do? Why are you calling up the Firmata libary?

system · December 29, 2012, 9:35am

What I am trying to do is send the serial 'p' or 'z' (from processing code) to my arduino where it receives the serial and performs the action based on the serial.

so when I press the 'e' key on my laptop, the action (shown in the arduino code) "ledPin13" turns on (high).

I plan on using xbee's to transfer the signal to the arduino from my laptop fyi.

I am not fully sure why the Firmata code is being imported. The reason I have it is because when I was getting help with it, I was told I needed it.

system · December 29, 2012, 9:40am

I should also mention that when I pulled up my code, I got the error that my code unexpectedly quite while using the
librxtxSerial.jnilib plugin.

So I went online and found the plug in and then added the file to my arduino file (from the menu).

Grumpy_Mike · December 29, 2012, 9:41am

Remove the two lines in setup that start arduino.
Add a call to the port connect function in setup. Then try it again.

system · December 29, 2012, 9:48am

Sorry,

I am not really understanding what two lines your are talking about and not sure on how to add a call to the port connect function.

Are you talking about in the processing code:

get ride of
size(200, 200);
print(arduino.list());

Grumpy_Mike · December 29, 2012, 9:56am

Yes I am talking about the Processing code.

import processing.serial.*; //Import the serial library into your sketch

char e;
char serial;
Serial scope;
String adaptor= "/dev/tty.usbmodem1a21";

void portConnect(){
    int portNumber = 99;
    String [] ports;
    println(Serial.list());
    ports = Serial.list();
      for(int j = 0; j< ports.length; j++) { 
    if(adaptor.equals(Serial.list()[j])) portNumber = j;         
    }
    if(portNumber == 99) portNumber = 0;
    String portName = Serial.list()[portNumber]; 
    println("Connected to "+portName);
    scope = new Serial(this, portName, 57600);
    scope.bufferUntil(10);
 }

void serialEvent(Serial scope) {  // this gets called every time a line feed is received
  String recieved = scope.readString() ;  
          println(recieved + " from serial port");  // show it at the bottom of the processing window
// also do the stuff you want to do when you get things back from the arduino
}

void setup() {
  size(200, 200);
portConnect();
  }

void keyPressed() {
    print(key);
    delay(10);
    switch (key) {
      case 'e':
      case 'E':
        scope.write('e');
      break;
      case 'i':
      case 'I':
        scope.write('i');
      break;
      case 'q':
      case 'Q':
        scope.write('q');
      break;
      
    }
  };
  


void keyReleased() {
    delay(10);
    switch (key) {
      case 'e':
      case 'E':
      scope.write('z');
      break;
      case 'i':
      case 'I':
        scope.write('p');
      break;
      case 'q':
      case 'Q':
        scope.write('l');
      break;
    }
}

I am on my iPad at the moment so I cannot check that this is OK.

system · December 29, 2012, 10:00am

ok!

I tried the changes and got the same error:

Error inside Serial.()

Except now its highlighting the part found in void portConnect():

scope = new Serial(this, portName, 57600);

Grumpy_Mike · December 29, 2012, 10:03am

So what else does it print?
Have you attached the arduino?

system · December 29, 2012, 10:07am

I have the arduino attached with the same code loaded as mentioned above:

=> when I upload it I get the following message:
Binary sketch size: 5676 bytes (of a 258048 byte maximum)
avrdude: stk500v2_ReceiveMessage(): timeout

Except is says done uploading..

NOW from the processing code:
Error inside Serial.()

Dec 29 04:03:36 Mac-2.local java[6161] : CGContextGetCTM: invalid context 0x0
Dec 29 04:03:36 Mac-2.local java[6161] : CGContextSetBaseCTM: invalid context 0x0
Dec 29 04:03:36 Mac-2.local java[6161] : CGContextGetCTM: invalid context 0x0
Dec 29 04:03:36 Mac-2.local java[6161] : CGContextSetBaseCTM: invalid context 0x0
WARNING: RXTX Version mismatch
Jar version = RXTX-2.2pre1
native lib Version = RXTX-2.1-7
[0] "/dev/tty.usbmodem1d11"
[1] "/dev/cu.usbmodem1d11"
[2] "/dev/tty.Bluetooth-PDA-Sync"
[3] "/dev/cu.Bluetooth-PDA-Sync"
[4] "/dev/tty.Bluetooth-Modem"
[5] "/dev/cu.Bluetooth-Modem"
Connected to /dev/tty.usbmodem1d11
gnu.io.PortInUseException: Unknown Application
at gnu.io.CommPortIdentifier.open(CommPortIdentifier.java:467)
at processing.serial.Serial.(Serial.java:139)
at processing.serial.Serial.(Serial.java:105)
at Newcodeold_UPDATE.portConnect(Newcodeold_UPDATE.java:50)
at Newcodeold_UPDATE.setup(Newcodeold_UPDATE.java:89)
at processing.core.PApplet.handleDraw(PApplet.java:1608)
at processing.core.PApplet.run(PApplet.java:1530)
at java.lang.Thread.run(Thread.java:680)
Exception in thread "Animation Thread" java.lang.RuntimeException: Error inside Serial.()
at processing.serial.Serial.errorMessage(Serial.java:591)
at processing.serial.Serial.(Serial.java:151)
at processing.serial.Serial.(Serial.java:105)
at Newcodeold_UPDATE.portConnect(Newcodeold_UPDATE.java:50)
at Newcodeold_UPDATE.setup(Newcodeold_UPDATE.java:89)
at processing.core.PApplet.handleDraw(PApplet.java:1608)
at processing.core.PApplet.run(PApplet.java:1530)
at java.lang.Thread.run(Thread.java:680)

My Processing code is the following:

import processing.serial.*; //Import the serial library into your sketch
import cc.arduino.*;        //Import the Arduino-Firmata library into your sketch
Arduino arduino;      //Create an instance of Arduino named arduino (can be any name) 

char e;
int ledPin;
char serial;
Serial scope;
String adaptor= "/dev/tty.usbmodem1a21";

void portConnect(){
    int portNumber = 99;
    String [] ports;
    println(Serial.list());
    ports = Serial.list();
      for(int j = 0; j< ports.length; j++) { 
    if(adaptor.equals(Serial.list()[j])) portNumber = j;         
    }
    if(portNumber == 99) portNumber = 0;
    String portName = Serial.list()[portNumber]; 
    println("Connected to "+portName);
    scope = new Serial(this, portName, 57600);
    scope.bufferUntil(10);
 }
 
   void serialEvent(Serial scope) {  // this gets called every time a line feed is received
  String recieved = scope.readString() ;  
          println(recieved + " from serial port");  // show it at the bottom of the processing window
// also do the stuff you want to do when you get things back from the arduino
}

void setup() {
  size(200, 200);
portConnect();
  }


void keyPressed() {
    print(key);
    delay(10);
    switch (key) {
      case 'e':
      case 'E':
        scope.write('e');
      break;
      case 'i':
      case 'I':
        scope.write('i');
      break;
      case 'q':
      case 'Q':
        scope.write('q');
      break;
      
    }
  };
  


void keyReleased() {
    delay(10);
    switch (key) {
      case 'e':
      case 'E':
      scope.write('z');
      break;
      case 'i':
      case 'I':
        scope.write('p');
      break;
      case 'q':
      case 'Q':
        scope.write('l');
      break;
    }
}

Grumpy_Mike · December 29, 2012, 10:15am

My Processing code is the following:

Why are you not using the code I posted for you.
Am I wasting my time trying to tell you anything?
You ask for advice and then ignore it, why should I bother?

system · December 29, 2012, 10:22am

Sorry!!

I thought the only change was the first and 2nd rows the the setup and adding the port. I do appreciate all your help!

I copied your exact code and got the following

=> This portion was high lighted from the code:
scope = new Serial(this, portName, 57600);

Error inside Serial.()

Experimental: JNI_OnLoad called.

Dec 29 04:18:32 Mac-2.local java[6546] : CGContextGetCTM: invalid context 0x0
Dec 29 04:18:32 Mac-2.local java[6546] : CGContextSetBaseCTM: invalid context 0x0
Dec 29 04:18:32 Mac-2.local java[6546] : CGContextGetCTM: invalid context 0x0
Dec 29 04:18:32 Mac-2.local java[6546] : CGContextSetBaseCTM: invalid context 0x0
WARNING: RXTX Version mismatch
Jar version = RXTX-2.2pre1
native lib Version = RXTX-2.1-7
[0] "/dev/tty.usbmodem1d11"
[1] "/dev/cu.usbmodem1d11"
[2] "/dev/tty.Bluetooth-PDA-Sync"
[3] "/dev/cu.Bluetooth-PDA-Sync"
[4] "/dev/tty.Bluetooth-Modem"
[5] "/dev/cu.Bluetooth-Modem"
Connected to /dev/tty.usbmodem1d11
gnu.io.PortInUseException: Unknown Application
at gnu.io.CommPortIdentifier.open(CommPortIdentifier.java:467)
at processing.serial.Serial.(Serial.java:139)
at processing.serial.Serial.(Serial.java:105)
at Newcodeold_UPDATE.portConnect(Newcodeold_UPDATE.java:45)
at Newcodeold_UPDATE.setup(Newcodeold_UPDATE.java:57)
at processing.core.PApplet.handleDraw(PApplet.java:1608)
at processing.core.PApplet.run(PApplet.java:1530)
at java.lang.Thread.run(Thread.java:680)
Exception in thread "Animation Thread" java.lang.RuntimeException: Error inside Serial.()
at processing.serial.Serial.errorMessage(Serial.java:591)
at processing.serial.Serial.(Serial.java:151)
at processing.serial.Serial.(Serial.java:105)
at Newcodeold_UPDATE.portConnect(Newcodeold_UPDATE.java:45)
at Newcodeold_UPDATE.setup(Newcodeold_UPDATE.java:57)
at processing.core.PApplet.handleDraw(PApplet.java:1608)
at processing.core.PApplet.run(PApplet.java:1530)
at java.lang.Thread.run(Thread.java:680)

Grumpy_Mike · December 29, 2012, 10:51am

It looks like you have something wrong with your Processing install.
I ran the code I sent you and it worked fine, the printout was:-

=========================================
Native lib Version = RXTX-2.1-7
Java lib Version   = RXTX-2.1-7
[0] "/dev/tty.usbserial-A7006T17"
[1] "/dev/cu.usbserial-A7006T17"
[2] "/dev/tty.Bluetooth-PDA-Sync"
[3] "/dev/cu.Bluetooth-PDA-Sync"
[4] "/dev/tty.Bluetooth-Modem"
[5] "/dev/cu.Bluetooth-Modem"
Connected to /dev/tty.usbserial-A7006T17

system · December 29, 2012, 10:52am

I noticed this part in the error which may be of concern:

WARNING: RXTX Version mismatch
Jar version = RXTX-2.2pre1
native lib Version = RXTX-2.1-7

they should be matching right? (I am using a mac)

Grumpy_Mike · December 29, 2012, 10:54am

(I am using a mac)

So am I.

they should be matching right?

No idea, but sounds good.

system · December 29, 2012, 11:52am

Alright!

I managed to get the code to run, a small gray box appears, and the following is on the bottom (on the black screen portion)

Stable Library

Native lib Version = RXTX-2.1-7
Java lib Version = RXTX-2.1-7
[0] "/dev/tty.usbmodem1d11"
[1] "/dev/cu.usbmodem1d11"
[2] "/dev/tty.Bluetooth-PDA-Sync"
[3] "/dev/cu.Bluetooth-PDA-Sync"
[4] "/dev/tty.Bluetooth-Modem"
[5] "/dev/cu.Bluetooth-Modem"
Connected to /dev/tty.usbmodem1d11

Now, unfortunately when I press 'e' nothing happens. So I am not sending any signal to my arduino..

Grumpy_Mike · December 29, 2012, 1:20pm

Add:-

void draw(){
}

To your processing sketch.

system · December 29, 2012, 1:44pm

they should be matching right? (I am using a mac)

It is generally no big deal if they don't.

Alright!

I managed to get the code to run

See, there's proof.

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PLEASE HELP! Serial Error

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