void setup() {
  Serial.begin(115200);
  delay(3000);  // Long delay to catch startup

  Serial.println("=== ESP32-C6 Serial Test ===");
  Serial.print("Chip Model: ");
  Serial.println(ESP.getChipModel());
  Serial.print("CPU Freq: ");
  Serial.println(ESP.getCpuFreqMHz());
}

void loop() {
  Serial.println("Alive: " + String(millis()));
  delay(1000);
}