CARA MENGETAHUI ADDRESS I2C DENGAN MUDAH DAN SIMPEL

 

terkadang saat beli lcd i2c kita kesulitan addresnya brp....?

berikut triknya .

sambungkan komponen seperti gambar di atas.

lalu upload sketchnya dibawah ini:

• #include <Wire.h>
•  void setup()
• {
•   Wire.begin();
•    Serial.begin(9600);
•   while (!Serial);             
•   Serial.println("\nI2C Scanner");
• }
•  void loop()
• {
•   byte error, address;
•   int nDevices;
•    Serial.println("Scanning...");
•    nDevices = 0;
•   for(address = 1; address < 127; address++ )
•   {
•      Wire.beginTransmission(address);
•     error = Wire.endTransmission();
•      if (error == 0)
•     {
•       Serial.print("I2C device found at address 0x");
•       if (address<16)
•         Serial.print("0");
•       Serial.print(address,HEX);
•       Serial.println("  !");
•        nDevices++;
•     }
•     else if (error==4)
•     {
•       Serial.print("Unknown error at address 0x");
•       if (address<16)
•         Serial.print("0");
•       Serial.println(address,HEX);
•     }    
•   }
•   if (nDevices == 0)
•     Serial.println("No I2C devices found\n");
•   else
•     Serial.println("done\n");
•    delay(5000);           // wait 5 seconds for next scan
• }

kemudian cek di serial monitor.

semoga bermanfaat