I think you need another chip to drive a usb

port.  You can learn about it at  the official web

site arduino.cc.

I saw one at sparkfun or adafruit recently.

hi Jeremy, i have a cuestion,,,, it is posible play a sound in a pc conected with de arduino uno ,, this sound file is played when a one input digital is present ,, example i want to monitoring th state of the 4 input and one input relation with one sound file is to make a parlant report alarm,,, thanks for you help

I have purchased the AVR-CAN development board from Newark. I am using the USB-to-CAN Compact avaliable from IXXAT to establish the transmition of Controller Area Network (CAN) messages. I have downloaded the AVR studio source code from the Olimex website for communication over the RJ232 connector and cannot seem to establish any communication between the two nodes. Is there some kind of jumper requirement that is not mentioned on the data sheet? Is there a known bug with the AVR-CAN board from your website? Time is a factor with this project and any information would be appreciated.

Thank you,

Kevin

Harbor Freight is selling an attractive tool box like Storage Organizer at their B&M locations.  It just screams: "Store your Arduino inside me!" for only $5.  And if you have or purchase some antistatic bubble bags like these or even regular ones like these bags it would be perfect.  It looks cool with the round blue/green and yellow arduino stickers on the top!

- = Syntax matters = -

//define pins. I used pins 4 and 5

#define irLedPin 4          // IR Led on this pin

#define irSensorPin 5       // IR sensor on this pin

int irRead(int readPin, int triggerPin); //function prototype

void setup()

{

  pinMode(irSensorPin, INPUT);

  pinMode(irLedPin, OUTPUT);

  Serial.begin(9600);

  // prints title with ending line break

  Serial.println("Program Starting");

  // wait for the long string to be sent

  delay(100);

}

void loop()

{ 

              //  call a StreetLights() function here if you wish

                   // or at end of the setup()

  if (irRead(irSensorPin, irLedPin))=0

  {

     lowerCrossingGate();

  }

}

void lowerCrossingGate()

{

                         // turn on traffic light code here

                        //  put motor control code here

               //  here is a tutorial for steppers that may help you:

               //  http://www.arduino.cc/en/Tutorial/StepperUnipolar

                         // turn off traffic light after motor position reversed

}

/******************************************************************************

* This function can be used with a panasonic pna4602m ir sensor

* it returns a zero if something is detected by the sensor, and a 1 otherwise

* The function bit bangs a 38.5khZ waveform to an IR led connected to the

* triggerPin for 1 millisecond, and then reads the IR sensor pin to see if

* the reflected IR has been detected

******************************************************************************/

int irRead(int readPin, int triggerPin)

{

  int halfPeriod = 13; //one period at 38.5khZ is aproximately 26 microseconds

  int cycles = 38; //26 microseconds * 38 is more or less 1 millisecond

  int i;

  for (i=0; i <=cycles; i++)

  {

    digitalWrite(triggerPin, HIGH);

    delayMicroseconds(halfPeriod);

    digitalWrite(triggerPin, LOW);

    delayMicroseconds(halfPeriod - 1);     // - 1 to make up for digitaWrite overhead   

  }

  return digitalRead(readPin);

}

Modified from original Source:  http://www.arduino.cc/playground/Main/PanasonicIrSensor

-= Syntax Matters =-

Thanks. I'll try this out.

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