Option to disable button support

code/espurna/button.ino

@@ -10,6 +10,8 @@ Copyright (C) 2016-2018 by Xose Pérez <xose dot perez at gmail dot com>
 // BUTTON
 // -----------------------------------------------------------------------------
 
+#if BUTTON_SUPPORT
+
 #include <DebounceEvent.h>
 #include <vector>
 
@@ -266,3 +268,5 @@ void buttonLoop() {
     #endif
 
 }
+
+#endif // BUTTON_SUPPORT

code/espurna/config/general.h

@@ -201,6 +201,10 @@
 // BUTTON
 //------------------------------------------------------------------------------
 
+#ifndef BUTTON_SUPPORT
+#define BUTTON_SUPPORT              1
+#endif
+
 #ifndef BUTTON_DEBOUNCE_DELAY
 #define BUTTON_DEBOUNCE_DELAY       50          // Debounce delay (ms)
 #endif

code/espurna/config/hardware.h

@@ -37,6 +37,7 @@
     // Disable non-core modules
     #define ALEXA_SUPPORT           0
     #define BROKER_SUPPORT          0
+    #define BUTTON_SUPPORT          0
     #define DOMOTICZ_SUPPORT        0
     #define HOMEASSISTANT_SUPPORT   0
     #define I2C_SUPPORT             0

code/espurna/espurna.ino

@@ -99,7 +99,9 @@ void setup() {
     #endif
 
     relaySetup();
-    buttonSetup();
+    #if BUTTON_SUPPORT
+        buttonSetup();
+    #endif
     #if LED_SUPPORT
         ledSetup();
     #endif