#include "BluetoothSerial.h"

BluetoothSerial SerialBT;

void setup() {
  Serial.begin(115200);
  SerialBT.begin("ESP32_Device1");
  Serial.println("Device 1 Bluetooth Started. Waiting for connection...");
}

void loop() {
  if (SerialBT.available()) {
    String receivedData = SerialBT.readString();
    Serial.println("Device 1 Received: " + receivedData);
    SerialBT.println("Device 1 Acknowledged: " + receivedData);
  }
  
  delay(20);
}