diff --git a/WS3/Serial-ESP/Serial-ESP.ino b/WS3/Serial-ESP/Serial-ESP.ino
index d1c6700..afdad48 100644
--- a/WS3/Serial-ESP/Serial-ESP.ino
+++ b/WS3/Serial-ESP/Serial-ESP.ino
@@ -63,6 +63,9 @@ const char* dom_in        = "domoticz/in";
 char msgToPublish[MQTT_MAX_PACKET_SIZE + 1];
 
 // Defines
+#define OTAPASSWORD "123" // Password for OTA upload thru Arduino IDE
+
+// Debug
 #define DEBUG 1
 
 #ifdef DEBUG
@@ -97,6 +100,10 @@ char msgToPublish[MQTT_MAX_PACKET_SIZE + 1];
 // if we have a correct dataline
 #define DONT_CHKSUM 1
 
+// Define ALTITUDE if you need to get pression corrected 
+// Set this to 0 if you don't care
+#define ALTITUDE 340    // Longwy is at 340m
+
 // Place holder for the packet received
 String pkt_str = "";
 
@@ -177,7 +184,7 @@ void setup_ota() {
 
   // No auth per default
   // XXX: Change this
-  ArduinoOTA.setPassword((const char *)"123");
+  ArduinoOTA.setPassword((const char *)OTAPASSWORD);
   
   ArduinoOTA.onStart([]() {
     Serial.println("Start");
@@ -213,28 +220,6 @@ void setup() {
   Serial.println("Weather Station 3 Adapter by Kiwi");
   Serial.println(ESP.getFullVersion());
 
-//  WiFi.hostname("ESP-Weather-Station");
-//  WiFi.mode(WIFI_STA);
-//  WiFi.begin(ssid, password);
-
-  // Use this loop instead to wait for an IPv6 routable address
-
-  // addr->isLocal() (meaning "not routable on internet") is true with:
-  // - IPV4 DHCP autoconfigured address 169.254.x.x
-  //   (false for any other including 192.168./16 and 10./24 since NAT may be in the equation)
-  // - IPV6 link-local addresses (fe80::/64)
-
-//  for (bool configured = false; !configured;) {
-//    for (auto addr : addrList)
-//      if ((configured = !addr.isLocal()
-//                        // && addr.isV6() // uncomment when IPv6 is mandatory
-//                        // && addr.ifnumber() == STATION_IF
-//          )) {
-//        break;
-//      }
-//    Serial.print('.');
-//    delay(500);
-//  }
   WiFiManager wm;
 
   wm.setSaveConfigCallback(saveConfigCallback);
@@ -555,8 +540,9 @@ void print_weather(WS3Packet* p){
 // Print the data over MQTT
 void push_weather(WS3Packet* p) {
   String MQPayload;
-  byte humidity_status = 0; // Domoticz humdity status
-  byte bar_forecast    = 0; // Domoticz baro forcast 
+  byte humidity_status = 0;   // Domoticz humdity status
+  byte bar_forecast    = 0;   // Domoticz baro forcast 
+  float pression       = 0.0; // Pression
   // Rain is mm x 100 -> Have to compute this.
 //  MQPayload = "{ \"idx\" : "+ String(domoticz_rain) +",\"nvalue\" : 0, \"svalue\" : \"" + String(p->rain_1m) + ";" + String(p->rain_1m) + "\"}";
   MQPayload = "{ \"idx\" : "+ String(idx_rain) +",\"nvalue\" : 0, \"svalue\" :\"" + String(p->rain_1h) + ";" + String(p->rain_1m) + "\"}";
@@ -580,7 +566,9 @@ void push_weather(WS3Packet* p) {
       humidity_status = 0; // Normal
     }
   }
-  // TODO : prediction
+  // Correct the pression according to altitude
+  pression = p->air_pressure + (ALTITUDE / 8.3);
+  // Prediction
   // 0 : No info
   // 1 : Sunny
   // 2 : Partly cloudy
@@ -588,11 +576,11 @@ void push_weather(WS3Packet* p) {
   // 4 : Rain
   // Maybe have to store values for last 3 hours?
   // XXX: fix value with altitude
-  if (p->air_pressure < 1000) {
+  if (pression < 1000) {
     bar_forecast = 4; // Rain
-  } else if (p->air_pressure < 1020) {
+  } else if (pression < 1020) {
     bar_forecast = 3; // Cloudy
-  } else if (p->air_pressure < 1030) {
+  } else if (pression < 1030) {
     bar_forecast = 2; // Partly cloudy 
   } else {
     bar_forecast = 1; // Sunny
@@ -602,7 +590,7 @@ void push_weather(WS3Packet* p) {
   //SLpressure_mB = p->air_pressure;
 //  MQPayload = "{ \"idx\" : "+ String(domoticz_temp) +",\"nvalue\" : 0, \"svalue\": \"" + String(p->temp_f) + ";" +  String(p->humidity) + ";0;" + String(SLpressure_mB) +";0\"}";
 //  MQPayload = "{ \"idx\" : "+ String(idx_temp) +",\"nvalue\" : 0, \"svalue\": \"" + String(p->temp_f) + ";" +  String(p->humidity) + ";"+String(humidity_status)+ ";" + String(p->air_pressure) +";0\"}";
-  MQPayload = "{ \"idx\" : "+ String(idx_temp) +",\"nvalue\" : 0, \"svalue\": \"" + String(p->temp_f) + ";" +  String(p->humidity) + ";"+String(humidity_status)+ ";" + String(p->air_pressure) +";"+String(bar_forecast)+"\"}";
+  MQPayload = "{ \"idx\" : "+ String(idx_temp) +",\"nvalue\" : 0, \"svalue\": \"" + String(p->temp_f) + ";" +  String(p->humidity) + ";"+String(humidity_status)+ ";" + String(pression) +";"+String(bar_forecast)+"\"}";
 
   sendMQTTPayload(MQPayload);
   // Wind