Implemented Reset Button

Allows for reset of HAP (press for 5 seconds, but less than 10) or Factory reset (press for 10 second).  Use  setResetPin to change from default of pint 21.

src/HomeSpan.cpp

@@ -155,6 +155,37 @@ void Span::poll() {
   HAPClient::checkNotifications();
   HAPClient::checkTimedWrites();
 
+  switch(resetPressed){
+    case 0:
+      if(!digitalRead(resetPin)){
+        resetPressed=1;
+        resetTime=millis()+5000;
+      }
+    break;
+
+    case 1:
+      if(digitalRead(resetPin)){
+        resetPressed=0;
+      } else 
+      if(millis()>resetTime){
+        resetPressed=2;
+        statusLED.start(200,0.5,4,800);
+        resetTime=millis()+6000;
+      }
+      break;
+
+    case 2:
+      if(digitalRead(resetPin)){
+        statusLED.off();
+        processSerialCommand("H");
+      } else
+      if(millis()>resetTime){
+        statusLED.off();
+        processSerialCommand("F");
+      }
+      break;
+  } // switch
+  
 } // poll
 
 ///////////////////////////////
@@ -379,7 +410,7 @@ void Span::processSerialCommand(char *c){
       nvs_erase_all(HAPClient::nvsHandle);
       nvs_commit(HAPClient::nvsHandle);      
       Serial.print("\n** HomeKit Pairing Data DELETED **\n** Restarting...\n\n");
-      delay(2000);
+      delay(1000);
       ESP.restart();
     }
     break;
@@ -387,7 +418,7 @@ void Span::processSerialCommand(char *c){
     case 'F': {
       nvs_flash_erase();
       Serial.print("\n** FACTORY RESET **\n** Restarting...\n\n");
-      delay(2000);
+      delay(1000);
       ESP.restart();
     }
     break;

src/HomeSpan.h

@@ -46,6 +46,8 @@ struct Span{
   unsigned long snapTime;                       // current time (in millis) snapped before entering Service loops() or updates()
 
   int resetPin=21;                              // drive this pin low to "factory" reset NVS data on start-up
+  int resetPressed=0;                           // tracks pressing of reset button
+  unsigned long resetTime;                      // tracks time once reset button is pressed
 
   Blinker statusLED=Blinker(LED_BUILTIN);       // indicates HomeSpan status
   

src/src.ino

@@ -1,5 +1,6 @@
 
-#error THIS IS NOT COMPILABLE CODE
-
 // This is a dummy .ino file that allows you to easily edit the contents of this library using the Arduino IDE.
 // The code is NOT designed to be compiled from this point.  Compile and test the library using one of the examples.
+
+void setup(){}
+void loop(){}