#include <Wire.h>

void setup() {
  Wire.begin(21, 22); // SDA dan SCL pin pada ESP32
  Serial.begin(115200);
  Serial.println("\nI2C Scanner");
  
  for (uint8_t addr = 1; addr < 127; ++addr) {
    Wire.beginTransmission(addr);
    if (Wire.endTransmission() == 0) {
      Serial.print("I2C device found at address 0x");
      Serial.println(addr, HEX);
    }
  }
  Serial.println("Done");
}

void loop() {
  // Kosong
}