diff --git a/envisens/envisens_esp_fw/envisens_esp_fw.ino b/envisens/envisens_esp_fw/envisens_esp_fw.ino
index 8d26b8a..c186f02 100644
--- a/envisens/envisens_esp_fw/envisens_esp_fw.ino
+++ b/envisens/envisens_esp_fw/envisens_esp_fw.ino
@@ -109,18 +109,21 @@ long lastSent = 0;
 bool published = false;
 bool forcePublish = false;
 
-bool publish (String desc, char *topic, float val, float &val_r, int diff, bool force){
+bool publish (String desc, char *topic, float val, float &lastVal, float diff, bool force){
   bool retval = false;
-  if (checkVariation(val, val_r, diff) or force) {
-    val_r = val;
-    Serial.print("New " + desc + ": ");
-    Serial.println(String(val).c_str());
-    if (checkPlausibility(val, val_r, diff) or force) {
+  if (checkVariation(val, lastVal, diff) or force) {
+    lastVal = val;
+    Serial.println("New " + desc + ": " + String(val).c_str());
+    if (checkPlausibility(val, lastVal, diff) or force) {
+      Serial.println("Value published");
       client.publish(topic, String(val).c_str(), true);
       retval = true;
     } else {
-      Serial.println("** ERROR: Value out of bounds, not published **");
+      Serial.print("** ERROR: Value out of bounds, not published. Last value :");
+      Serial.println(String(lastVal).c_str());
     }
+  } else {
+    Serial.println("Not enough variation for a publication");
   }
   return retval;
 }