diff --git a/tools/esp8266/README.md b/tools/esp8266/README.md
index cdb120cd5..18086d4fb 100644
--- a/tools/esp8266/README.md
+++ b/tools/esp8266/README.md
@@ -54,7 +54,11 @@ For now the following inverters should work out of the box:
 
 ## USED LIBRARIES
 
-- `Time`
-- `RF24`
-- `PubSubClient`
+- `ESP8266WiFi` 1.0
+- `DNSServer` 1.1.0
+- `Ticker` 1.0
+- `ESP8266HTTPUpdateServer` 1.0
+- `Time` 1.6.1
+- `RF24` 1.4.2
+- `PubSubClient` 2.8
 
diff --git a/tools/esp8266/app.cpp b/tools/esp8266/app.cpp
index 06d2f33b0..51aa2ff16 100644
--- a/tools/esp8266/app.cpp
+++ b/tools/esp8266/app.cpp
@@ -14,6 +14,7 @@ app::app() : Main() {
     mSerialTicker   = 0xffff;
     mSerialInterval = 0;
     mMqttActive     = false;
+    mMqttNewDataAvail = false;
 
     mTicker = 0;
     mRxTicker = 0;
@@ -181,7 +182,7 @@ void app::loop(void) {
         mMqtt.loop();
 
     if(checkTicker(&mTicker, 1000)) {
-        if(mMqttActive) {
+        if(mMqttNewDataAvail) {
             if(++mMqttTicker >= mMqttInterval) {
                 mMqttTicker = 0;
                 mMqtt.isConnected(true);
@@ -190,17 +191,17 @@ void app::loop(void) {
                     Inverter<> *iv = mSys->getInverterByPos(id);
                     if(NULL != iv) {
                         for(uint8_t i = 0; i < iv->listLen; i++) {
-                            if(0.0f != iv->getValue(i)) {
-                                snprintf(topic, 30, "%s/ch%d/%s", iv->name, iv->assign[i].ch, fields[iv->assign[i].fieldId]);
-                                snprintf(val, 10, "%.3f", iv->getValue(i));
-                                mMqtt.sendMsg(topic, val);
-                                yield();
-                            }
+                            snprintf(topic, 30, "%s/ch%d/%s", iv->name, iv->assign[i].ch, fields[iv->assign[i].fieldId]);
+                            snprintf(val, 10, "%.3f", iv->getValue(i));
+                            mMqtt.sendMsg(topic, val);
+                            yield();
+
                         }
                     }
                 }
                 snprintf(val, 10, "%d", ESP.getFreeHeap());
                 mMqtt.sendMsg("free_heap", val);
+                mMqttNewDataAvail = false;
             }
         }
 
@@ -342,6 +343,7 @@ void app::processPayload(bool retransmit) {
                         iv->addValue(i, payload);
                     }
                     iv->doCalculations();
+                    mMqttNewDataAvail = true;
                 }
             }
         }
diff --git a/tools/esp8266/app.h b/tools/esp8266/app.h
index 23734965c..9fb6c0e8b 100644
--- a/tools/esp8266/app.h
+++ b/tools/esp8266/app.h
@@ -102,6 +102,7 @@ class app : public Main {
         bool mMqttActive;
         uint16_t mSerialTicker;
         uint16_t mSerialInterval;
+        bool mMqttNewDataAvail;
 };
 
 #endif /*__APP_H__*/