Sensor an der I2C Schnittstelle

International Deutsch
11

uuppps Ich !?# ok so ich habs :slight_smile:

byte decToBcd(byte val){
  return ( (val/10*16) + (val%10) );
}

byte bcdToDec(byte val){
  return ( (val/16*10) + (val%16) );
}


void adresseAendern(){
  //Sensor starten
  digitalWrite(13, HIGH);
  delay(2);

  //in Command Mode
  Wire.beginTransmission(adress);
  Wire.send(0xA0);
  Wire.send(0x00);
  Wire.send(0x00);
  Wire.endTransmission();
  delay(100);

  //Adress anfragen
  Wire.beginTransmission(adress);
  Wire.send(0x1C);
  Wire.send(0x00);
  Wire.send(0x00);
  Wire.endTransmission();
  delay(100);

  //Adresse auslesen
  Wire.requestFrom(adress, 3);
  if(Wire.available() > 2){
    byte b1 = bcdToDec(Wire.receive());
    byte b2 = bcdToDec(Wire.receive());
    byte b3 = bcdToDec(Wire.receive());
    /*
    Serial.println((b1), DEC);
     Serial.println((b2), DEC);
     Serial.println((b3), DEC);
     */
    int i2cAdress = b2 << 8 | b3; 
    Serial.println((i2cAdress));
  }
  

  //Adress neu setzten
  Wire.beginTransmission(adress);
  Wire.send(0x5C);
  Wire.send(0x00);
  Wire.send(adressNew);
  Wire.endTransmission();
  delay(100);


  //normal Mode
  digitalWrite(13, LOW);
  delay(100);

}