First time I get values, on ESP32

ampel-firmware/ampel-firmware.ino

@@ -14,7 +14,8 @@
   #define S8_TX_PIN 1         // Tx pin which the S8 Rx pin is attached to (change if it is needed)
 # warning SOFTWARE_SERIAL
 #else
-  #define S8_UART_PORT  1     // Change UART port if it is needed
+  // For ESP32 : RX on GPIO17, TX on GPIO16
+  #define S8_UART_PORT  2     // Change UART port if it is needed
 # warning HARDWARE_SERIAL
 #endif
 /* END CONFIGURATION */
@@ -40,9 +41,6 @@ void setup() {
 
   // Configure serial port, we need it for debug
   Serial.begin(DEBUG_BAUDRATE);
-  Serial.println("XyLUT!");
-
-  Serial.println("SALUT2!");
   // First message, we are alive
   Serial.println("");
   Serial.println("Init");