include <testApp.h>
  
  //--------------------------------------------------------------
  void testApp::setup(){         
  
          ofSetVerticalSync(true);
  
          bSendSerialMessage = false;
          ofBackground(255,255,255);        
          
          
          serial.enumerateDevices();
                          
          
          //----------------------------------- note:
          serial.setup("/dev/tty.usbserial-A4001JEC", 9600);                // < this should be set
                                                                                  // to whatever com port
                                                                                  // your serial device is 
                                                                                  // connected to.  
                                                                                  // (ie, COM4 on a pc, dev/tty.... on a mac)
                                                                                  // arduino users check in arduino app....
          //----------------------------------- 
          font.loadFont("DIN.otf",64);
          nTimesRead = 0;
          nBytesRead = 0;
          readTime = 0;
          memset(bytesReadString, 0, 4);
  }
  
  //--------------------------------------------------------------
  void testApp::update(){
          
          if (bSendSerialMessage){
                  
                  // (1) write the letter "a" to serial:
                  serial.writeByte('a');
                  
                  // (2) read
                  // now we try to read 3 bytes
                  // since we might not get them all the time 3 - but sometimes 0, 6, or something else,
                  // we will try to read three bytes, as much as we can
                  // otherwise, we may have a "lag" if we don't read fast enough
                  // or just read three every time. now, we will be sure to 
                  // read as much as we can in groups of three...
  
                  nTimesRead = 0;
                  nBytesRead = 0;
                  int nRead  = 0;  // a temp variable to keep count per read
                  
                  unsigned char bytesReturned[3];
  
                  memset(bytesReadString, 0, 4);
                  memset(bytesReturned, 0, 3);
                  
                  while( (nRead = serial.readBytes( bytesReturned, 3)) > 0){
                          nTimesRead++;        
                          nBytesRead = nRead;
                  };
  
                  memcpy(bytesReadString, bytesReturned, 3);
                  
                  bSendSerialMessage = false;
                  readTime = ofGetElapsedTimef();
          }
  }
  
  //--------------------------------------------------------------
  void testApp::draw(){
  
          char tempStr[1024];
          sprintf(tempStr, "click to test serial:\nnBytes read \%i\nnTimes read \%i\nread: \%s\n(at time %0.3f)", nBytesRead, nTimesRead, bytesReadString, readTime);
          
          if (nBytesRead > 0 && ((ofGetElapsedTimef() - readTime) < 0.5f)){
                  ofSetColor(0x000000);
          } else {
                  ofSetColor(0xdddddd);
          }
          font.drawString(tempStr, 50,100);
  
  }
  
  //--------------------------------------------------------------
  void testApp::keyPressed  (int key){ 
          
  }
  
  //--------------------------------------------------------------
  void testApp::keyReleased(int key){ 
          
  }
  
  //--------------------------------------------------------------
  void testApp::mouseMoved(int x, int y ){
          
  }
  
  //--------------------------------------------------------------
  void testApp::mouseDragged(int x, int y, int button){
          
  }
  
  //--------------------------------------------------------------
  void testApp::mousePressed(int x, int y, int button){
          bSendSerialMessage = true;
  }
  
  //--------------------------------------------------------------
  void testApp::mouseReleased(int x, int y, int button){
  
  }
  
  //--------------------------------------------------------------
  void testApp::resized(int w, int h){
  
  }