we should send only buttons events that have actions assigned to them or set BUTTON_MQTT_SEND_ALL_EVENTS to 1 to send everything

code/espurna/button.ino

@@ -97,12 +97,14 @@ void buttonEvent(unsigned int id, unsigned char event) {
     DEBUG_MSG_P(PSTR("[BUTTON] Button #%u event %u\n"), id, event);
     if (event == 0) return;
 
+    unsigned char action = buttonAction(id, event);
+
     #if MQTT_SUPPORT
-        buttonMQTT(id, event);
+       if (action != BUTTON_MODE_NONE || BUTTON_MQTT_SEND_ALL_EVENTS) {
+           buttonMQTT(id, event);
+       }
     #endif
 
-    unsigned char action = buttonAction(id, event);
-
     if (action == BUTTON_MODE_TOGGLE) {
         if (_buttons[id].relayID > 0) {
             relayToggle(_buttons[id].relayID - 1);

code/espurna/config/general.h

@@ -236,6 +236,8 @@
 
 #ifndef BUTTON_LNGLNGCLICK_DELAY
 #define BUTTON_LNGLNGCLICK_DELAY    10000       // Time in ms holding the button down to get a long-long click
+#define BUTTON_MQTT_SEND_ALL_EVENTS 0           // 0 - to send only events the are bound to actions
+                                                // 1 - to send all button events to MQTT
 #endif
 
 //------------------------------------------------------------------------------