#include <Wire.h>

#define SDA_PIN 6 // ESP32-C6 LP_I2C_SDA
#define SCL_PIN 7 // ESP32-C6 LP_I2C_SCL
void setup() {
 Serial.begin(115200);
 delay(2000);
 Serial.printf("\nESP32-C6 I2C Scanner (SDA=%d, SCL=%d)\n", SDA_PIN, SCL_PIN);
 Wire.begin(SDA_PIN, SCL_PIN, 100000); // 100kHz
}

void loop() {
 byte error, address;
 int nDevices = 0;
 Serial.println("Scanning...");
 for (address = 1; address < 127; address++) {
 Wire.beginTransmission(address);
 error = Wire.endTransmission();
 if (error == 0) {
 Serial.print("I2C device found at 0x");
 if (address < 16) Serial.print("0");
 Serial.println(address, HEX);
 nDevices++;
 }
 else if (error == 4) {
 Serial.print("Unknown error at 0x");
 if (address < 16) Serial.print("0");
 Serial.println(address, HEX);
 }
 }
 if (nDevices == 0)
 Serial.println("No I2C devices found\n");
 delay(2000);
}