void setup() {
  Serial.begin(115200);  // Initialize serial communication
  Serial.println("Ready to receive...");
}

void loop() {
  if (Serial.available() > 0) {      // Check if data is available
    String receivedText = Serial.readString();  // Read the text
    
    Serial.print("You sent: ");      // Print message
    Serial.println(receivedText);    // Echo back what was received
  }
}