/*********
  Rui Santos & Sara Santos - Random Nerd Tutorials
  Complete instructions at https://RandomNerdTutorials.com/esp32-uart-communication-serial-arduino/
  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files.
  The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
*********/

// Define TX and RX pins for UART (change if needed)
#define TXD1 19
#define RXD1 21

// Use Serial1 for UART communication
HardwareSerial mySerial(2);

void setup() {
  Serial.begin(115200);
  mySerial.begin(9600, SERIAL_8N1, RXD1, TXD1);  // UART setup
  
  Serial.println("ESP32 UART Receiver");
}

void loop() {
  // Check if data is available to read
  if (mySerial.available()) {
    // Read data and display it
    String message = mySerial.readStringUntil('\n');
    Serial.println("Received: " + message);
  }
}