#define RXD2 16
    #define TXD2 17
     
    #define GPS_BAUDS 115200
     
    HardwareSerial mySerial2(2);
     
    int counter = 0;
     
    void setup() {
      Serial.begin(115200);
      mySerial2.begin(GPS_BAUDS, SERIAL_8N1, RXD2, TXD2);
      Serial.println("Serial 2 demarre en 115200 Bds");
    }
     
    void loop() {
      while (mySerial2.available() > 0) {
        char gpsData1 = mySerial2.read();
        Serial.print(gpsData1);
        }
      delay(2000);
      Serial.println("--------------------------------------------");
      mySerial2.println(String(counter));
      Serial.println("Envoie UART2:  " + String(counter));
      counter++;
      delay(2000);
    }