diff --git a/firmware/config.h b/firmware/config.h
index f20adab..607bd5a 100644
--- a/firmware/config.h
+++ b/firmware/config.h
@@ -3,7 +3,7 @@
 
 // config general setting and behavior of the weatherstation
 
-#define VERSION_STRING               "1.1.1"
+#define VERSION_STRING               "1.1.2"
 
 #define WIFI_AUTOCONNECT_TIMEOUT_S       60
 #define WIFI_CONFIG_PORTAL_TIMEOUT_S    120
diff --git a/firmware/influxdb.ino b/firmware/influxdb.ino
index fd4ab62..5e3a023 100644
--- a/firmware/influxdb.ino
+++ b/firmware/influxdb.ino
@@ -1,6 +1,8 @@
 
 #include "config_user.h"
 
+#ifdef INFLUXDB_FEATURE
+
 //*************************************************************************//
 
 #if INFLUXDB_VERSION == 1
@@ -107,12 +109,12 @@ void influxdb_begin() {
   if (client.validateConnection()) {
     // success
 #ifdef DEBUG
-    Serial.print("InfluxDB connect success\n");
+    debug("InfluxDB connect success\n");
 #endif
   } else {
     // fail
 #ifdef DEBUG
-    Serial.print("InfluxDB connect failed\n");
+    debug("InfluxDB connect failed\n");
 #endif
   }
 
@@ -215,4 +217,6 @@ void _writePoint()
 
 #endif // influxdb version 2 check
 
+#endif // INFLUXDB_FEATURE
+
 //*************************************************************************//