Arduino + NX Shield

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Bonjour,

Nous utilisons une arduino Teemino + un NX Shield,

Nous arrivons a utiliser tous les capteurs de lego, mais avons juste un probléme sur le capteur en rotation

Nous utilisons ce code, avec les bilbliotheques fournis :

/*
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/
/*
For beginners tutorial (and user guide) visit:
http://www.openelectrons.com/docs/viewdoc/1
*/

#include <Wire.h>
#include <NXShield.h>
#include <AngleSensor.h>

// setup for this example:
// attach external power to NXShield.
// attach AngleSensor to Port BAS1
// Open the Serial terminal to view.

//
// declare the NXShield(s) attached to your Arduino.
//
NXShield    nxshield;

//
// declare the i2c devices used on NXShield(s).
//

AngleSensor angsens (0x30);

void setup()
{
  char str[256];
/**  Start serial for output
 */
  Serial.begin(115200);  // 
/**  Wait, allowing time to activate the serial monitor
 */ 
  delay(500); // wait, allowing time to activate the serial monitor


/**  Initialize the protocol for NXShield
     It is best to use Hardware I2C (unless you want to use Ultrasonic).
 */
  nxshield.init( SH_SoftwareI2C );
/**  Wait until user presses GO button to continue the program
 */
  Serial.println ("Press GO button to continue");
  nxshield.waitForButtonPress(BTN_GO);
/**  Initialize the i2c sensors.
 */
  angsens.init( &nxshield, SH_BAS1 );

}

#define DELAY_T 0

void loop()
{
  char aa[80];        
  char str[256];          //sets length of character string
  uint8_t  result;
  char str2[20];          //sets length of character string 2
  char str3[20];          //sets length of character string 3 
  long  angle;            //declares "angle" variable 
  long  myread;           //declares "myread" variable 
  
/**  Displays Firmeware Version of sensor
*/
  strcpy(aa, angsens.getFirmwareVersion() );
  sprintf (str, "angsens: getFirmwareVersion: %s", aa);
  Serial.println(str);
/**  Displays Device ID of sensor
 */
  strcpy(aa, angsens.getDeviceID() );
  sprintf (str, "angsens: DeviceID: %s", aa);
  Serial.println(str);
/**  Gets and displays Vendor ID of sensor
 */
  strcpy(aa, angsens.getVendorID() );
  sprintf (str, "angsens: VendorID: %s", aa);
  Serial.println(str);
/**  Displays Angle
 */
  angle = angsens.getAngle();
  sprintf (str, "angsens: Angle:       %ld", angle);
  Serial.println(str);
/**  Displays Raw Reading
 */  
  myread = angsens.getRawReading();
  sprintf (str, "angsens: Raw Reading: %ld",  myread);
  Serial.println(str);
  
  Serial.println( "-------------" );
  delay (1500);
}

le probléme c est que la carte ne semble pas detecter le capteur :

voyez vous un element dans le code qui fait que l on ne detecte pas le capteur ? ou des points a verifier pour etre sur que ca marche ?

Merci d avance