diff --git a/lib/ESPAsyncUDP-master/src/AsyncUDP.cpp b/lib/ESPAsyncUDP-master/src/AsyncUDP.cpp
index 2a538c4c6..9e433b1f4 100644
--- a/lib/ESPAsyncUDP-master/src/AsyncUDP.cpp
+++ b/lib/ESPAsyncUDP-master/src/AsyncUDP.cpp
@@ -1,3 +1,6 @@
+#include <core_version.h>         // Arduino_Esp8266 version information (ARDUINO_ESP8266_RELEASE and ARDUINO_ESP8266_RELEASE_2_3_0)
+#ifndef ARDUINO_ESP8266_RELEASE_2_3_0 // This Library will only work with ARDUINO_ESP8266_RELEASE_2_4_0 and up
+
 #include "Arduino.h"
 #include "ESPAsyncUDP.h"
 
@@ -425,3 +428,5 @@ size_t AsyncUDP::broadcast(AsyncUDPMessage &message)
     }
     return broadcast(message.data(), message.length());
 }
+
+#endif
diff --git a/lib/esp-knx-ip-0.5.1/esp-knx-ip.h b/lib/esp-knx-ip-0.5.1/esp-knx-ip.h
index d8fde1dc9..515a5d843 100644
--- a/lib/esp-knx-ip-0.5.1/esp-knx-ip.h
+++ b/lib/esp-knx-ip-0.5.1/esp-knx-ip.h
@@ -7,14 +7,6 @@
 #ifndef ESP_KNX_IP_H
 #define ESP_KNX_IP_H
 
-//#define USE_ASYNC_UDP     // UDP WIFI Library Selection for Multicast
-                          //   If commented out, the esp-knx-ip library will use WIFI_UDP Library that is compatible with ESP8266 Library Version 2.3.0 and up
-                          //   If not commented out, the esp-knx-ip library will use ESPAsyncUDP Library that is compatible with ESP8266 Library Version 2.4.0 and up
-                          //     The ESPAsyncUDP Library have a more reliable multicast communication
-                          //     Please Use it with Patch (https://github.com/me-no-dev/ESPAsyncUDP/pull/21) )
-                          //     check line 57 on esp-knx-ip.h file is uncommented: #include <ESPAsyncUDP.h>
-                          //       Comment out that line when using UDP WIFI to avoid compiling issues on PlatformIO with ESP8266 Library Version 2.3.0
-
 /**
  * CONFIG
  * All MAX_ values must not exceed 255 (1 byte, except MAC_CONFIG_SPACE which can go up to 2 bytes, so 0xffff in theory) and must not be negative!
@@ -54,8 +46,13 @@
 #include <EEPROM.h>
 #include <ESP8266WiFi.h>
 
+#include <core_version.h>         // Arduino_Esp8266 version information (ARDUINO_ESP8266_RELEASE and ARDUINO_ESP8266_RELEASE_2_3_0)
+#ifndef ARDUINO_ESP8266_RELEASE_2_3_0
+#define USE_ASYNC_UDP             // UDP WIFI Library Selection for Multicast
+#endif
+
 #ifdef USE_ASYNC_UDP
-//#include <ESPAsyncUDP.h>
+#include <ESPAsyncUDP.h>
 #else
 #include <WiFiUdp.h>
 #endif
diff --git a/platformio.ini b/platformio.ini
index 4551a164d..d385873f4 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -52,14 +52,28 @@ framework = arduino
 board = esp01_1m
 board_build.flash_mode = dout
 
+; set CPU frequency to 80MHz (default) or 160MHz
+board_build.f_cpu = 80000000L
+;board_build.f_cpu = 160000000L
+
 ; *** Fix espressif8266@1.7.0 induced undesired all warnings
 build_unflags = -Wall
 
 build_flags =
   -Wl,-Tesp8266.flash.1m0.ld
-  -DVTABLES_IN_FLASH
+;  -DUSE_CONFIG_OVERRIDE  
+; lwIP 1.4 (Default)
   -DPIO_FRAMEWORK_ARDUINO_LWIP_HIGHER_BANDWIDTH
-;  -DUSE_CONFIG_OVERRIDE
+; lwIP 2 - Low Memory
+;  -DPIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY
+; lwIP 2 - Higher Bandwitdh
+;  -DPIO_FRAMEWORK_ARDUINO_LWIP2_HIGHER_BANDWIDTH
+; VTABLES in Flash (default)
+  -DVTABLES_IN_FLASH
+; VTABLES in Heap
+;  -DVTABLES_IN_DRAM
+; VTABLES in IRAM
+;  -DVTABLES_IN_IRAM
 
 ; *** Serial Monitor options
 monitor_speed = 115200
@@ -68,6 +82,7 @@ monitor_speed = 115200
 upload_speed = 115200
 upload_resetmethod = nodemcu
 upload_port = COM5
+
 ; *** Fix Esp/Arduino core 2.4.x induced Tasmota unused floating point includes
 extra_scripts = pio/strip-floats.py
 
@@ -86,6 +101,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags}
 monitor_speed = ${common.monitor_speed}
@@ -99,6 +115,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DBE_MINIMAL
 monitor_speed = ${common.monitor_speed}
@@ -112,6 +129,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DUSE_CLASSIC
 monitor_speed = ${common.monitor_speed}
@@ -125,6 +143,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DUSE_KNX_NO_EMULATION
 monitor_speed = ${common.monitor_speed}
@@ -138,6 +157,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DUSE_ALL_SENSORS
 monitor_speed = ${common.monitor_speed}
@@ -151,6 +171,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=bg-BG
 monitor_speed = ${common.monitor_speed}
@@ -164,6 +185,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=pt-BR
 monitor_speed = ${common.monitor_speed}
@@ -177,6 +199,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=zh-CN
 monitor_speed = ${common.monitor_speed}
@@ -190,6 +213,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=cs-CZ
 monitor_speed = ${common.monitor_speed}
@@ -203,6 +227,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=de-DE
 monitor_speed = ${common.monitor_speed}
@@ -216,6 +241,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=es-AR
 monitor_speed = ${common.monitor_speed}
@@ -229,6 +255,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=fr-FR
 monitor_speed = ${common.monitor_speed}
@@ -242,6 +269,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=el-GR
 monitor_speed = ${common.monitor_speed}
@@ -255,6 +283,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=hu-HU
 monitor_speed = ${common.monitor_speed}
@@ -268,6 +297,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=it-IT
 monitor_speed = ${common.monitor_speed}
@@ -281,6 +311,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=nl-NL
 monitor_speed = ${common.monitor_speed}
@@ -294,6 +325,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=pl-PL
 monitor_speed = ${common.monitor_speed}
@@ -307,6 +339,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=pt-PT
 monitor_speed = ${common.monitor_speed}
@@ -320,6 +353,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=ru-RU
 monitor_speed = ${common.monitor_speed}
@@ -333,6 +367,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=tr-TR
 monitor_speed = ${common.monitor_speed}
@@ -346,6 +381,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=zh-TW
 monitor_speed = ${common.monitor_speed}
@@ -359,6 +395,7 @@ platform = ${common.platform}
 framework = ${common.framework}
 board = ${common.board}
 board_build.flash_mode = ${common.board_build.flash_mode}
+board_build.f_cpu = ${common.board_build.f_cpu}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} -DMY_LANGUAGE=uk-UK
 monitor_speed = ${common.monitor_speed}
diff --git a/sonoff/_changelog.ino b/sonoff/_changelog.ino
index e12138049..97822dec0 100644
--- a/sonoff/_changelog.ino
+++ b/sonoff/_changelog.ino
@@ -1,4 +1,10 @@
-/* 6.1.1.11 20180826
+/* 6.1.1.12 20180827
+ * Add commands ButtonDebounce 40..1000 and SwitchDebounce 40..1000 to have user control over debounce timing. Default is 50mS (#3594)
+ * Add rule variables %sunrise%, %sunset%, %uptime% and %time% (#3608)
+ * Fix handling use of default names when using names starting with shortcut character (#3392, #3600)
+ * Fix Sonoff Bridge data reception when using Portisch EFM8 firmware and in data buffer length (#3605)
+ *
+ * 6.1.1.11 20180826
  * Change scheduler phase 1/3 - Fixed when sleep is enabled: Uptime, Delay, PulseTime and TelePeriod (#3581)
  * Change scheduler phase 2/3 - Fixed when sleep is enabled: Blinktime (#3581)
  * Change scheduler phase 3/3 - Some sensor update timings: AdcEvery 200 -> 250, Senseair 300 -> 250, SDM120 300 -> 250, SDM630 300 -> 250
diff --git a/sonoff/i18n.h b/sonoff/i18n.h
index 235f0cc04..3d63f73f5 100644
--- a/sonoff/i18n.h
+++ b/sonoff/i18n.h
@@ -192,6 +192,8 @@
 #define D_CMND_COUNTER "Counter"
 #define D_CMND_COUNTERTYPE "CounterType"
 #define D_CMND_COUNTERDEBOUNCE "CounterDebounce"
+#define D_CMND_BUTTONDEBOUNCE "ButtonDebounce"
+#define D_CMND_SWITCHDEBOUNCE "SwitchDebounce"
 #define D_CMND_SLEEP "Sleep"
 #define D_CMND_UPLOAD "Upload"
 #define D_CMND_UPGRADE "Upgrade"
diff --git a/sonoff/settings.h b/sonoff/settings.h
index bb3c7711b..b918b67ee 100644
--- a/sonoff/settings.h
+++ b/sonoff/settings.h
@@ -297,9 +297,7 @@ struct SYSCFG {
   char          ntp_server[3][33];         // 4CE
   byte          ina219_mode;               // 531
   uint16_t      pulse_timer[MAX_PULSETIMERS]; // 532
-
-  byte          free542[2];                // 542
-
+  uint16_t      button_debounce;           // 542
   uint32_t      ip_address[4];             // 544
   unsigned long energy_kWhtotal;           // 554
   char          mqtt_fulltopic[100];       // 558
@@ -309,8 +307,9 @@ struct SYSCFG {
   uint16_t      pulse_counter_debounce;    // 5D2
   uint8_t       rf_code[17][9];            // 5D4
 
-  byte          free_66d[3];               // 66D
+  byte          free_66d[1];               // 66D
 
+  uint16_t      switch_debounce;           // 66E
   Timer         timer[MAX_TIMERS];         // 670
   int           latitude;                  // 6B0
   int           longitude;                 // 6B4
@@ -321,7 +320,9 @@ struct SYSCFG {
   byte          knx_CB_param[MAX_KNX_CB];  // 6EC  Type of Output (set relay, toggle relay, reply sensor value)
   Mcp230xxCfg   mcp230xx_config[16];       // 6F6
   uint8_t       mcp230xx_int_prio;         // 716
-  byte          free_717;                  // 717
+
+  byte          free_717[1];               // 717
+
   uint16_t      mcp230xx_int_timer;        // 718
 
   byte          free_71A[180];             // 71A
diff --git a/sonoff/settings.ino b/sonoff/settings.ino
index 7ba1b53f8..e0a40a17c 100644
--- a/sonoff/settings.ino
+++ b/sonoff/settings.ino
@@ -588,6 +588,9 @@ void SettingsDefaultSet2()
   Settings.latitude = (int)((double)LATITUDE * 1000000);
   Settings.longitude = (int)((double)LONGITUDE * 1000000);
   SettingsDefaultSet_5_13_1c();  // Time STD/DST settings
+
+  Settings.button_debounce = KEY_DEBOUNCE_TIME;
+  Settings.switch_debounce = SWITCH_DEBOUNCE_TIME;
 }
 
 /********************************************************************************************/
@@ -787,6 +790,10 @@ void SettingsDelta()
     if (Settings.version < 0x06010103) {
       Settings.flag3.timers_enable = 1;
     }
+    if (Settings.version < 0x0601010C) {
+      Settings.button_debounce = KEY_DEBOUNCE_TIME;
+      Settings.switch_debounce = SWITCH_DEBOUNCE_TIME;
+    }
 
     Settings.version = VERSION;
     SettingsSave(1);
diff --git a/sonoff/sonoff.h b/sonoff/sonoff.h
index cea1b6f98..f93df0059 100644
--- a/sonoff/sonoff.h
+++ b/sonoff/sonoff.h
@@ -83,7 +83,7 @@ typedef unsigned long power_t;              // Power (Relay) type
 #define SAFE_POWER_WINDOW      30           // Time in MINUTES to disable allow max unit safe power
 #define MAX_POWER_RETRY        5            // Retry count allowing agreed power limit overflow
 
-#define STATES                 20           // State loops per second
+#define STATES                 20           // Number of states per second using 50 mSec interval
 #define IMMINENT_RESET_FACTOR  10           // Factor to extent button hold time for imminent Reset to default 40 seconds using KEY_HOLD_TIME of 40
 #define SYSLOG_TIMER           600          // Seconds to restore syslog_level
 #define SERIALLOG_TIMER        600          // Seconds to disable SerialLog
@@ -187,7 +187,9 @@ enum ExecuteCommandPowerOptions { POWER_OFF, POWER_ON, POWER_TOGGLE, POWER_BLINK
 
 enum PowerOnStateOptions { POWER_ALL_OFF, POWER_ALL_ON, POWER_ALL_SAVED_TOGGLE, POWER_ALL_SAVED, POWER_ALL_ALWAYS_ON, POWER_ALL_OFF_PULSETIME_ON };
 
-enum ButtonStates {PRESSED, NOT_PRESSED};
+enum ButtonStates { PRESSED, NOT_PRESSED };
+
+enum Shortcuts { SC_CLEAR, SC_DEFAULT, SC_USER };
 
 enum SettingsParmaIndex {P_HOLD_TIME, P_MAX_POWER_RETRY, P_MAX_PARAM8};
 
diff --git a/sonoff/sonoff.ino b/sonoff/sonoff.ino
index 6281dabaf..a006c1b0a 100755
--- a/sonoff/sonoff.ino
+++ b/sonoff/sonoff.ino
@@ -79,7 +79,7 @@ enum TasmotaCommands {
   CMND_BLINKTIME, CMND_BLINKCOUNT, CMND_SENSOR, CMND_SAVEDATA, CMND_SETOPTION, CMND_TEMPERATURE_RESOLUTION, CMND_HUMIDITY_RESOLUTION,
   CMND_PRESSURE_RESOLUTION, CMND_POWER_RESOLUTION, CMND_VOLTAGE_RESOLUTION, CMND_CURRENT_RESOLUTION, CMND_ENERGY_RESOLUTION, CMND_MODULE, CMND_MODULES,
   CMND_GPIO, CMND_GPIOS, CMND_PWM, CMND_PWMFREQUENCY, CMND_PWMRANGE, CMND_COUNTER, CMND_COUNTERTYPE,
-  CMND_COUNTERDEBOUNCE, CMND_SLEEP, CMND_UPGRADE, CMND_UPLOAD, CMND_OTAURL, CMND_SERIALLOG, CMND_SYSLOG,
+  CMND_COUNTERDEBOUNCE, CMND_BUTTONDEBOUNCE, CMND_SWITCHDEBOUNCE, CMND_SLEEP, CMND_UPGRADE, CMND_UPLOAD, CMND_OTAURL, CMND_SERIALLOG, CMND_SYSLOG,
   CMND_LOGHOST, CMND_LOGPORT, CMND_IPADDRESS, CMND_NTPSERVER, CMND_AP, CMND_SSID, CMND_PASSWORD, CMND_HOSTNAME,
   CMND_WIFICONFIG, CMND_FRIENDLYNAME, CMND_SWITCHMODE,
   CMND_TELEPERIOD, CMND_RESTART, CMND_RESET, CMND_TIMEZONE, CMND_TIMESTD, CMND_TIMEDST, CMND_ALTITUDE, CMND_LEDPOWER, CMND_LEDSTATE,
@@ -89,7 +89,7 @@ const char kTasmotaCommands[] PROGMEM =
   D_CMND_BLINKTIME "|" D_CMND_BLINKCOUNT "|" D_CMND_SENSOR "|" D_CMND_SAVEDATA "|" D_CMND_SETOPTION "|" D_CMND_TEMPERATURE_RESOLUTION "|" D_CMND_HUMIDITY_RESOLUTION "|"
   D_CMND_PRESSURE_RESOLUTION "|" D_CMND_POWER_RESOLUTION "|" D_CMND_VOLTAGE_RESOLUTION "|" D_CMND_CURRENT_RESOLUTION "|" D_CMND_ENERGY_RESOLUTION "|" D_CMND_MODULE "|" D_CMND_MODULES "|"
   D_CMND_GPIO "|" D_CMND_GPIOS "|" D_CMND_PWM "|" D_CMND_PWMFREQUENCY "|" D_CMND_PWMRANGE "|" D_CMND_COUNTER "|" D_CMND_COUNTERTYPE "|"
-  D_CMND_COUNTERDEBOUNCE "|" D_CMND_SLEEP "|" D_CMND_UPGRADE "|" D_CMND_UPLOAD "|" D_CMND_OTAURL "|" D_CMND_SERIALLOG "|" D_CMND_SYSLOG "|"
+  D_CMND_COUNTERDEBOUNCE "|" D_CMND_BUTTONDEBOUNCE "|" D_CMND_SWITCHDEBOUNCE "|" D_CMND_SLEEP "|" D_CMND_UPGRADE "|" D_CMND_UPLOAD "|" D_CMND_OTAURL "|" D_CMND_SERIALLOG "|" D_CMND_SYSLOG "|"
   D_CMND_LOGHOST "|" D_CMND_LOGPORT "|" D_CMND_IPADDRESS "|" D_CMND_NTPSERVER "|" D_CMND_AP "|" D_CMND_SSID "|" D_CMND_PASSWORD "|" D_CMND_HOSTNAME "|"
   D_CMND_WIFICONFIG "|" D_CMND_FRIENDLYNAME "|" D_CMND_SWITCHMODE "|"
   D_CMND_TELEPERIOD "|" D_CMND_RESTART "|" D_CMND_RESET "|" D_CMND_TIMEZONE "|" D_CMND_TIMESTD "|" D_CMND_TIMEDST "|" D_CMND_ALTITUDE "|" D_CMND_LEDPOWER "|" D_CMND_LEDSTATE "|"
@@ -98,52 +98,7 @@ const char kTasmotaCommands[] PROGMEM =
 const uint8_t kIFan02Speed[4][3] = {{6,6,6}, {7,6,6}, {7,7,6}, {7,6,7}};
 
 // Global variables
-unsigned long feature_drv1;                 // Compiled driver feature map
-unsigned long feature_drv2;                 // Compiled driver feature map
-unsigned long feature_sns1;                 // Compiled sensor feature map
-unsigned long feature_sns2;                 // Compiled sensor feature map
-int baudrate = APP_BAUDRATE;                // Serial interface baud rate
 SerialConfig serial_config = SERIAL_8N1;    // Serial interface configuration 8 data bits, No parity, 1 stop bit
-byte serial_in_byte;                        // Received byte
-uint8_t serial_local = 0;                   // Handle serial locally;
-unsigned long serial_polling_window = 0;    // Serial polling window
-int serial_in_byte_counter = 0;             // Index in receive buffer
-byte dual_hex_code = 0;                     // Sonoff dual input flag
-uint16_t dual_button_code = 0;              // Sonoff dual received code
-int16_t save_data_counter;                  // Counter and flag for config save to Flash
-uint8_t fallback_topic_flag = 0;            // Use Topic or FallbackTopic
-unsigned long state_second = 0;             // State second timer
-unsigned long state_50msecond = 0;          // State 50msecond timer
-unsigned long state_100msecond = 0;         // State 100msecond timer
-unsigned long state_250msecond = 0;         // State 250msecond timer
-uint8_t state_250mS = 0;                    // State 250msecond per second flag
-int ota_state_flag = 0;                     // OTA state flag
-int ota_result = 0;                         // OTA result
-byte ota_retry_counter = OTA_ATTEMPTS;      // OTA retry counter
-char *ota_url;                              // OTA url string
-int restart_flag = 0;                       // Sonoff restart flag
-int wifi_state_flag = WIFI_RESTART;         // Wifi state flag
-uint32_t uptime = 0;                        // Counting every second until 4294967295 = 130 year
-boolean latest_uptime_flag = true;          // Signal latest uptime
-int tele_period = 0;                        // Tele period timer
-byte web_log_index = 1;                     // Index in Web log buffer (should never be 0)
-byte reset_web_log_flag = 0;                // Reset web console log
-byte devices_present = 0;                   // Max number of devices supported
-int status_update_timer = 0;                // Refresh initial status
-unsigned long pulse_timer[MAX_PULSETIMERS] = { 0 }; // Power off timer
-unsigned long blink_timer = 0;              // Power cycle timer
-uint16_t blink_counter = 0;                 // Number of blink cycles
-power_t blink_power;                        // Blink power state
-power_t blink_mask = 0;                     // Blink relay active mask
-power_t blink_powersave;                    // Blink start power save state
-uint16_t mqtt_cmnd_publish = 0;             // ignore flag for publish command
-power_t latching_power = 0;                 // Power state at latching start
-uint8_t latching_relay_pulse = 0;           // Latching relay pulse timer
-uint8_t backlog_index = 0;                  // Command backlog index
-uint8_t backlog_pointer = 0;                // Command backlog pointer
-uint8_t backlog_mutex = 0;                  // Command backlog pending
-unsigned long backlog_delay = 0;            // Command backlog delay
-uint8_t interlock_mutex = 0;                // Interlock power command pending
 
 #ifdef USE_MQTT_TLS
   WiFiClientSecure EspClient;               // Wifi Secure Client
@@ -153,30 +108,67 @@ uint8_t interlock_mutex = 0;                // Interlock power command pending
 
 WiFiUDP PortUdp;                            // UDP Syslog and Alexa
 
+unsigned long feature_drv1;                 // Compiled driver feature map
+unsigned long feature_drv2;                 // Compiled driver feature map
+unsigned long feature_sns1;                 // Compiled sensor feature map
+unsigned long feature_sns2;                 // Compiled sensor feature map
+unsigned long serial_polling_window = 0;    // Serial polling window
+unsigned long state_second = 0;             // State second timer
+unsigned long state_50msecond = 0;          // State 50msecond timer
+unsigned long state_100msecond = 0;         // State 100msecond timer
+unsigned long state_250msecond = 0;         // State 250msecond timer
+unsigned long pulse_timer[MAX_PULSETIMERS] = { 0 }; // Power off timer
+unsigned long blink_timer = 0;              // Power cycle timer
+unsigned long backlog_delay = 0;            // Command backlog delay
+unsigned long button_debounce = 0;          // Button debounce timer
+unsigned long switch_debounce = 0;          // Switch debounce timer
 power_t power = 0;                          // Current copy of Settings.power
-byte syslog_level;                          // Current copy of Settings.syslog_level
-uint16_t syslog_timer = 0;                  // Timer to re-enable syslog_level
-byte seriallog_level;                       // Current copy of Settings.seriallog_level
+power_t blink_power;                        // Blink power state
+power_t blink_mask = 0;                     // Blink relay active mask
+power_t blink_powersave;                    // Blink start power save state
+power_t latching_power = 0;                 // Power state at latching start
+power_t rel_inverted = 0;                   // Relay inverted flag (1 = (0 = On, 1 = Off))
+int baudrate = APP_BAUDRATE;                // Serial interface baud rate
+int serial_in_byte_counter = 0;             // Index in receive buffer
+int ota_state_flag = 0;                     // OTA state flag
+int ota_result = 0;                         // OTA result
+int restart_flag = 0;                       // Sonoff restart flag
+int wifi_state_flag = WIFI_RESTART;         // Wifi state flag
+int tele_period = 0;                        // Tele period timer
+int status_update_timer = 0;                // Refresh initial status
+int blinks = 201;                           // Number of LED blinks
+uint32_t uptime = 0;                        // Counting every second until 4294967295 = 130 year
+uint32_t global_update = 0;                 // Timestamp of last global temperature and humidity update
+float global_temperature = 0;               // Provide a global temperature to be used by some sensors
+float global_humidity = 0;                  // Provide a global humidity to be used by some sensors
+char *ota_url;                              // OTA url string pointer
+uint16_t dual_button_code = 0;              // Sonoff dual received code
+uint16_t mqtt_cmnd_publish = 0;             // ignore flag for publish command
+uint16_t blink_counter = 0;                 // Number of blink cycles
 uint16_t seriallog_timer = 0;               // Timer to disable Seriallog
+uint16_t syslog_timer = 0;                  // Timer to re-enable syslog_level
+uint16_t holdbutton[MAX_KEYS] = { 0 };      // Timer for button hold
+int16_t save_data_counter;                  // Counter and flag for config save to Flash
+RulesBitfield rules_flag;                   // Rule state flags (16 bits)
+uint8_t serial_local = 0;                   // Handle serial locally;
+uint8_t fallback_topic_flag = 0;            // Use Topic or FallbackTopic
+uint8_t state_250mS = 0;                    // State 250msecond per second flag
+uint8_t latching_relay_pulse = 0;           // Latching relay pulse timer
+uint8_t backlog_index = 0;                  // Command backlog index
+uint8_t backlog_pointer = 0;                // Command backlog pointer
+uint8_t backlog_mutex = 0;                  // Command backlog pending
+uint8_t interlock_mutex = 0;                // Interlock power command pending
 uint8_t sleep;                              // Current copy of Settings.sleep
 uint8_t stop_flash_rotate = 0;              // Allow flash configuration rotation
-
-int blinks = 201;                           // Number of LED blinks
 uint8_t blinkstate = 0;                     // LED state
 uint8_t blinkspeed = 1;                     // LED blink rate
-
-uint8_t blockgpio0 = 4;                     // Block GPIO0 for 4 seconds after poweron to workaround Wemos D1 RTS circuit
 uint8_t lastbutton[MAX_KEYS] = { NOT_PRESSED, NOT_PRESSED, NOT_PRESSED, NOT_PRESSED };  // Last button states
-uint16_t holdbutton[MAX_KEYS] = { 0 };      // Timer for button hold
 uint8_t multiwindow[MAX_KEYS] = { 0 };      // Max time between button presses to record press count
 uint8_t multipress[MAX_KEYS] = { 0 };       // Number of button presses within multiwindow
 uint8_t lastwallswitch[MAX_SWITCHES];       // Last wall switch states
 uint8_t holdwallswitch[MAX_SWITCHES] = { 0 };  // Timer for wallswitch push button hold
 uint8_t virtualswitch[MAX_SWITCHES];        // Virtual switch states
-
-mytmplt my_module;                          // Active copy of Module name and GPIOs
 uint8_t pin[GPIO_MAX];                      // Possible pin configurations
-power_t rel_inverted = 0;                   // Relay inverted flag (1 = (0 = On, 1 = Off))
 uint8_t led_inverted = 0;                   // LED inverted flag (1 = (0 = On, 1 = Off))
 uint8_t pwm_inverted = 0;                   // PWM inverted flag (1 = inverted)
 uint8_t counter_no_pullup = 0;              // Counter input pullup flag (1 = No pullup)
@@ -185,16 +177,20 @@ uint8_t energy_flg = 1;                     // Energy monitor configured
 uint8_t i2c_flg = 0;                        // I2C configured
 uint8_t spi_flg = 0;                        // SPI configured
 uint8_t light_type = 0;                     // Light types
-bool pwm_present = false;                   // Any PWM channel configured with SetOption15 0
-boolean mdns_begun = false;
 uint8_t ntp_force_sync = 0;                 // Force NTP sync
-StateBitfield global_state;
-RulesBitfield rules_flag;
-
-uint32_t global_update = 0;
-float global_temperature = 0;
-float global_humidity = 0;
-
+byte serial_in_byte;                        // Received byte
+byte dual_hex_code = 0;                     // Sonoff dual input flag
+byte ota_retry_counter = OTA_ATTEMPTS;      // OTA retry counter
+byte web_log_index = 1;                     // Index in Web log buffer (should never be 0)
+byte reset_web_log_flag = 0;                // Reset web console log
+byte devices_present = 0;                   // Max number of devices supported
+byte seriallog_level;                       // Current copy of Settings.seriallog_level
+byte syslog_level;                          // Current copy of Settings.syslog_level
+boolean latest_uptime_flag = true;          // Signal latest uptime
+boolean pwm_present = false;                // Any PWM channel configured with SetOption15 0
+boolean mdns_begun = false;                 // mDNS active
+mytmplt my_module;                          // Active copy of Module name and GPIOs (23 x 8 bits)
+StateBitfield global_state;                 // Global states (currently Wifi and Mqtt) (8 bits)
 char my_version[33];                        // Composed version string
 char my_hostname[33];                       // Composed Wifi hostname
 char mqtt_client[33];                       // Composed MQTT Clientname
@@ -608,8 +604,9 @@ void MqttDataHandler(char* topic, byte* data, unsigned int data_len)
       }
     }
     else if (CMND_OTAURL == command_code) {
-      if ((data_len > 0) && (data_len < sizeof(Settings.ota_url)))
-        strlcpy(Settings.ota_url, (1 == payload) ? OTA_URL : dataBuf, sizeof(Settings.ota_url));
+      if ((data_len > 0) && (data_len < sizeof(Settings.ota_url))) {
+        strlcpy(Settings.ota_url, (SC_DEFAULT == Shortcut(dataBuf)) ? OTA_URL : dataBuf, sizeof(Settings.ota_url));
+      }
       snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_SVALUE, command, Settings.ota_url);
     }
     else if (CMND_SERIALLOG == command_code) {
@@ -947,6 +944,18 @@ void MqttDataHandler(char* topic, byte* data, unsigned int data_len)
       }
       snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_NVALUE, command, Settings.pulse_counter_debounce);
     }
+    else if (CMND_BUTTONDEBOUNCE == command_code) {
+      if ((payload > 39) && (payload < 1001)) {
+        Settings.button_debounce = payload;
+      }
+      snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_NVALUE, command, Settings.button_debounce);
+    }
+    else if (CMND_SWITCHDEBOUNCE == command_code) {
+      if ((payload > 39) && (payload < 1001)) {
+        Settings.switch_debounce = payload;
+      }
+      snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_NVALUE, command, Settings.switch_debounce);
+    }
     else if (CMND_BAUDRATE == command_code) {
       if (payload32 > 0) {
         payload32 /= 1200;  // Make it a valid baudrate
@@ -997,12 +1006,14 @@ void MqttDataHandler(char* topic, byte* data, unsigned int data_len)
     }
     else if (CMND_LOGHOST == command_code) {
       if ((data_len > 0) && (data_len < sizeof(Settings.syslog_host))) {
-        strlcpy(Settings.syslog_host, (1 == payload) ? SYS_LOG_HOST : dataBuf, sizeof(Settings.syslog_host));
+        strlcpy(Settings.syslog_host, (SC_DEFAULT == Shortcut(dataBuf)) ? SYS_LOG_HOST : dataBuf, sizeof(Settings.syslog_host));
       }
       snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_SVALUE, command, Settings.syslog_host);
     }
     else if (CMND_LOGPORT == command_code) {
-      if (payload16 > 0) Settings.syslog_port = (1 == payload16) ? SYS_LOG_PORT : payload16;
+      if (payload16 > 0) {
+        Settings.syslog_port = (1 == payload16) ? SYS_LOG_PORT : payload16;
+      }
       snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_NVALUE, command, Settings.syslog_port);
     }
     else if ((CMND_IPADDRESS == command_code) && (index > 0) && (index <= 4)) {
@@ -1015,7 +1026,7 @@ void MqttDataHandler(char* topic, byte* data, unsigned int data_len)
     }
     else if ((CMND_NTPSERVER == command_code) && (index > 0) && (index <= 3)) {
       if ((data_len > 0) && (data_len < sizeof(Settings.ntp_server[0]))) {
-        strlcpy(Settings.ntp_server[index -1], (!strcmp(dataBuf,"0")) ? "" : (1 == payload) ? (1==index)?NTP_SERVER1:(2==index)?NTP_SERVER2:NTP_SERVER3 : dataBuf, sizeof(Settings.ntp_server[0]));
+        strlcpy(Settings.ntp_server[index -1], (SC_CLEAR == Shortcut(dataBuf)) ? "" : (SC_DEFAULT == Shortcut(dataBuf)) ? (1==index)?NTP_SERVER1:(2==index)?NTP_SERVER2:NTP_SERVER3 : dataBuf, sizeof(Settings.ntp_server[0]));
         for (i = 0; i < strlen(Settings.ntp_server[index -1]); i++) {
           if (Settings.ntp_server[index -1][i] == ',') Settings.ntp_server[index -1][i] = '.';
         }
@@ -1039,7 +1050,7 @@ void MqttDataHandler(char* topic, byte* data, unsigned int data_len)
     }
     else if ((CMND_SSID == command_code) && (index > 0) && (index <= 2)) {
       if ((data_len > 0) && (data_len < sizeof(Settings.sta_ssid[0]))) {
-        strlcpy(Settings.sta_ssid[index -1], (!strcmp(dataBuf,"0")) ? "" : (1 == payload) ? (1 == index) ? STA_SSID1 : STA_SSID2 : dataBuf, sizeof(Settings.sta_ssid[0]));
+        strlcpy(Settings.sta_ssid[index -1], (SC_CLEAR == Shortcut(dataBuf)) ? "" : (SC_DEFAULT == Shortcut(dataBuf)) ? (1 == index) ? STA_SSID1 : STA_SSID2 : dataBuf, sizeof(Settings.sta_ssid[0]));
         Settings.sta_active = index -1;
         restart_flag = 2;
       }
@@ -1047,7 +1058,7 @@ void MqttDataHandler(char* topic, byte* data, unsigned int data_len)
     }
     else if ((CMND_PASSWORD == command_code) && (index > 0) && (index <= 2)) {
       if ((data_len > 0) && (data_len < sizeof(Settings.sta_pwd[0]))) {
-        strlcpy(Settings.sta_pwd[index -1], (!strcmp(dataBuf,"0")) ? "" : (1 == payload) ? (1 == index) ? STA_PASS1 : STA_PASS2 : dataBuf, sizeof(Settings.sta_pwd[0]));
+        strlcpy(Settings.sta_pwd[index -1], (SC_CLEAR == Shortcut(dataBuf)) ? "" : (SC_DEFAULT == Shortcut(dataBuf)) ? (1 == index) ? STA_PASS1 : STA_PASS2 : dataBuf, sizeof(Settings.sta_pwd[0]));
         Settings.sta_active = index -1;
         restart_flag = 2;
         snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_INDEX_SVALUE, command, index, Settings.sta_pwd[index -1]);
@@ -1057,7 +1068,7 @@ void MqttDataHandler(char* topic, byte* data, unsigned int data_len)
     }
     else if ((CMND_HOSTNAME == command_code) && !grpflg) {
       if ((data_len > 0) && (data_len < sizeof(Settings.hostname))) {
-        strlcpy(Settings.hostname, (1 == payload) ? WIFI_HOSTNAME : dataBuf, sizeof(Settings.hostname));
+        strlcpy(Settings.hostname, (SC_DEFAULT == Shortcut(dataBuf)) ? WIFI_HOSTNAME : dataBuf, sizeof(Settings.hostname));
         if (strstr(Settings.hostname,"%")) {
           strlcpy(Settings.hostname, WIFI_HOSTNAME, sizeof(Settings.hostname));
         }
@@ -1087,12 +1098,14 @@ void MqttDataHandler(char* topic, byte* data, unsigned int data_len)
         } else {
           snprintf_P(stemp1, sizeof(stemp1), PSTR(FRIENDLY_NAME "%d"), index);
         }
-        strlcpy(Settings.friendlyname[index -1], (1 == payload) ? stemp1 : dataBuf, sizeof(Settings.friendlyname[index -1]));
+        strlcpy(Settings.friendlyname[index -1], (SC_DEFAULT == Shortcut(dataBuf)) ? stemp1 : dataBuf, sizeof(Settings.friendlyname[index -1]));
       }
       snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_INDEX_SVALUE, command, index, Settings.friendlyname[index -1]);
     }
     else if ((CMND_SWITCHMODE == command_code) && (index > 0) && (index <= MAX_SWITCHES)) {
-      if ((payload >= 0) && (payload < MAX_SWITCH_OPTION)) Settings.switchmode[index -1] = payload;
+      if ((payload >= 0) && (payload < MAX_SWITCH_OPTION)) {
+        Settings.switchmode[index -1] = payload;
+      }
       snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_INDEX_NVALUE, command, index, Settings.switchmode[index-1]);
     }
     else if (CMND_TELEPERIOD == command_code) {
@@ -1119,7 +1132,9 @@ void MqttDataHandler(char* topic, byte* data, unsigned int data_len)
       }
     }
     else if (CMND_TIMEZONE == command_code) {
-      if ((data_len > 0) && (((payload >= -13) && (payload <= 14)) || (99 == payload))) Settings.timezone = payload;
+      if ((data_len > 0) && (((payload >= -13) && (payload <= 14)) || (99 == payload))) {
+        Settings.timezone = payload;
+      }
       snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_NVALUE, command, Settings.timezone);
     }
     else if ((CMND_TIMESTD == command_code) || (CMND_TIMEDST == command_code)) {
@@ -1164,7 +1179,9 @@ void MqttDataHandler(char* topic, byte* data, unsigned int data_len)
         command, Settings.tflag[ts].hemis, Settings.tflag[ts].week, Settings.tflag[ts].month, Settings.tflag[ts].dow, Settings.tflag[ts].hour, Settings.toffset[ts]);
     }
     else if (CMND_ALTITUDE == command_code) {
-      if ((data_len > 0) && ((payload >= -30000) && (payload <= 30000))) Settings.altitude = payload;
+      if ((data_len > 0) && ((payload >= -30000) && (payload <= 30000))) {
+        Settings.altitude = payload;
+      }
       snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_NVALUE, command, Settings.altitude);
     }
     else if (CMND_LEDPOWER == command_code) {
@@ -1556,8 +1573,6 @@ void PerformEverySecond()
     SetDevicePower(power, SRC_RETRY);  // Set required power on state
   }
 
-  if (blockgpio0) blockgpio0--;
-
   if (seriallog_timer) {
     seriallog_timer--;
     if (!seriallog_timer) {
@@ -1631,7 +1646,8 @@ void ButtonHandler()
 {
   uint8_t button = NOT_PRESSED;
   uint8_t button_present = 0;
-  uint8_t hold_time_extent = IMMINENT_RESET_FACTOR;  // Extent hold time factor in case of iminnent Reset command
+  uint8_t hold_time_extent = IMMINENT_RESET_FACTOR;            // Extent hold time factor in case of iminnent Reset command
+  uint16_t loops_per_second = 1000 / Settings.button_debounce;
   char scmnd[20];
 
   uint8_t maxdev = (devices_present > MAX_KEYS) ? MAX_KEYS : devices_present;
@@ -1645,43 +1661,45 @@ void ButtonHandler()
         snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_APPLICATION D_BUTTON " " D_CODE " %04X"), dual_button_code);
         AddLog(LOG_LEVEL_DEBUG);
         button = PRESSED;
-        if (0xF500 == dual_button_code) {             // Button hold
-          holdbutton[button_index] = (Settings.param[P_HOLD_TIME] * (STATES / 10)) -1;
+        if (0xF500 == dual_button_code) {                      // Button hold
+          holdbutton[button_index] = (loops_per_second * Settings.param[P_HOLD_TIME] / 10) -1;
           hold_time_extent = 1;
         }
         dual_button_code = 0;
       }
     } else {
-      if ((pin[GPIO_KEY1 +button_index] < 99) && !blockgpio0) {
-        button_present = 1;
-        button = digitalRead(pin[GPIO_KEY1 +button_index]);
+      if (pin[GPIO_KEY1 +button_index] < 99) {
+        if (!((uptime < 4) && (0 == pin[GPIO_KEY1 +button_index]))) {  // Block GPIO0 for 4 seconds after poweron to workaround Wemos D1 RTS circuit
+          button_present = 1;
+          button = digitalRead(pin[GPIO_KEY1 +button_index]);
+        }
       }
     }
 
     if (button_present) {
       if (SONOFF_4CHPRO == Settings.module) {
-        if (holdbutton[button_index]) holdbutton[button_index]--;
+        if (holdbutton[button_index]) { holdbutton[button_index]--; }
 
         boolean button_pressed = false;
         if ((PRESSED == button) && (NOT_PRESSED == lastbutton[button_index])) {
           snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_APPLICATION D_BUTTON "%d " D_LEVEL_10), button_index +1);
           AddLog(LOG_LEVEL_DEBUG);
-          holdbutton[button_index] = STATES;
+          holdbutton[button_index] = loops_per_second;
           button_pressed = true;
         }
         if ((NOT_PRESSED == button) && (PRESSED == lastbutton[button_index])) {
           snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_APPLICATION D_BUTTON "%d " D_LEVEL_01), button_index +1);
           AddLog(LOG_LEVEL_DEBUG);
-          if (!holdbutton[button_index]) button_pressed = true;        // Do not allow within 1 second
+          if (!holdbutton[button_index]) { button_pressed = true; }  // Do not allow within 1 second
         }
         if (button_pressed) {
-          if (!SendKey(0, button_index +1, POWER_TOGGLE)) {  // Execute Toggle command via MQTT if ButtonTopic is set
+          if (!SendKey(0, button_index +1, POWER_TOGGLE)) {    // Execute Toggle command via MQTT if ButtonTopic is set
             ExecuteCommandPower(button_index +1, POWER_TOGGLE, SRC_BUTTON);  // Execute Toggle command internally
           }
         }
       } else {
         if ((PRESSED == button) && (NOT_PRESSED == lastbutton[button_index])) {
-          if (Settings.flag.button_single) {          // Allow only single button press for immediate action
+          if (Settings.flag.button_single) {                   // Allow only single button press for immediate action
             snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_APPLICATION D_BUTTON "%d " D_IMMEDIATE), button_index +1);
             AddLog(LOG_LEVEL_DEBUG);
             if (!SendKey(0, button_index +1, POWER_TOGGLE)) {  // Execute Toggle command via MQTT if ButtonTopic is set
@@ -1691,7 +1709,7 @@ void ButtonHandler()
             multipress[button_index] = (multiwindow[button_index]) ? multipress[button_index] +1 : 1;
             snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_APPLICATION D_BUTTON "%d " D_MULTI_PRESS " %d"), button_index +1, multipress[button_index]);
             AddLog(LOG_LEVEL_DEBUG);
-            multiwindow[button_index] = STATES /2;               // 0.5 second multi press window
+            multiwindow[button_index] = loops_per_second / 2;  // 0.5 second multi press window
           }
           blinks = 201;
         }
@@ -1700,20 +1718,20 @@ void ButtonHandler()
           holdbutton[button_index] = 0;
         } else {
           holdbutton[button_index]++;
-          if (Settings.flag.button_single) {        // Allow only single button press for immediate action
-            if (holdbutton[button_index] == Settings.param[P_HOLD_TIME] * (STATES / 10) * hold_time_extent) {  // Button held for factor times longer
+          if (Settings.flag.button_single) {                   // Allow only single button press for immediate action
+            if (holdbutton[button_index] == loops_per_second * hold_time_extent * Settings.param[P_HOLD_TIME] / 10) {  // Button held for factor times longer
 //              Settings.flag.button_single = 0;
               snprintf_P(scmnd, sizeof(scmnd), PSTR(D_CMND_SETOPTION "13 0"));  // Disable single press only
               ExecuteCommand(scmnd, SRC_BUTTON);
             }
           } else {
-            if (Settings.flag.button_restrict) {   // Button restriction
-              if (holdbutton[button_index] == Settings.param[P_HOLD_TIME] * (STATES / 10)) {  // Button hold
+            if (Settings.flag.button_restrict) {               // Button restriction
+              if (holdbutton[button_index] == loops_per_second * Settings.param[P_HOLD_TIME] / 10) {  // Button hold
                 multipress[button_index] = 0;
-                SendKey(0, button_index +1, 3);        // Execute Hold command via MQTT if ButtonTopic is set
+                SendKey(0, button_index +1, 3);                // Execute Hold command via MQTT if ButtonTopic is set
               }
             } else {
-              if (holdbutton[button_index] == (Settings.param[P_HOLD_TIME] * (STATES / 10)) * hold_time_extent) {  // Button held for factor times longer
+              if (holdbutton[button_index] == loops_per_second * hold_time_extent * Settings.param[P_HOLD_TIME] / 10) {  // Button held for factor times longer
                 multipress[button_index] = 0;
                 snprintf_P(scmnd, sizeof(scmnd), PSTR(D_CMND_RESET " 1"));
                 ExecuteCommand(scmnd, SRC_BUTTON);
@@ -1722,13 +1740,13 @@ void ButtonHandler()
           }
         }
 
-        if (!Settings.flag.button_single) {           // Allow multi-press
+        if (!Settings.flag.button_single) {                    // Allow multi-press
           if (multiwindow[button_index]) {
             multiwindow[button_index]--;
           } else {
             if (!restart_flag && !holdbutton[button_index] && (multipress[button_index] > 0) && (multipress[button_index] < MAX_BUTTON_COMMANDS +3)) {
               boolean single_press = false;
-              if (multipress[button_index] < 3) {                // Single or Double press
+              if (multipress[button_index] < 3) {              // Single or Double press
                 if ((SONOFF_DUAL_R2 == Settings.module) || (SONOFF_DUAL == Settings.module) || (CH4 == Settings.module)) {
                   single_press = true;
                 } else  {
@@ -1739,13 +1757,13 @@ void ButtonHandler()
               if (single_press && SendKey(0, button_index + multipress[button_index], POWER_TOGGLE)) {  // Execute Toggle command via MQTT if ButtonTopic is set
                 // Success
               } else {
-                if (multipress[button_index] < 3) {              // Single or Double press
-                  if (WifiState()) {                  // WPSconfig, Smartconfig or Wifimanager active
+                if (multipress[button_index] < 3) {            // Single or Double press
+                  if (WifiState()) {                           // WPSconfig, Smartconfig or Wifimanager active
                     restart_flag = 1;
                   } else {
                     ExecuteCommandPower(button_index + multipress[button_index], POWER_TOGGLE, SRC_BUTTON);  // Execute Toggle command internally
                   }
-                } else {                              // 3 - 7 press
+                } else {                                       // 3 - 7 press
                   if (!Settings.flag.button_restrict) {
                     snprintf_P(scmnd, sizeof(scmnd), kCommands[multipress[button_index] -3]);
                     ExecuteCommand(scmnd, SRC_BUTTON);
@@ -1770,6 +1788,7 @@ void SwitchHandler(byte mode)
 {
   uint8_t button = NOT_PRESSED;
   uint8_t switchflag;
+  uint16_t loops_per_second = 1000 / Settings.switch_debounce;
 
   for (byte i = 0; i < MAX_SWITCHES; i++) {
     if ((pin[GPIO_SWT1 +i] < 99) || (mode)) {
@@ -1777,14 +1796,16 @@ void SwitchHandler(byte mode)
       if (holdwallswitch[i]) {
         holdwallswitch[i]--;
         if (0 == holdwallswitch[i]) {
-          SendKey(1, i +1, 3);         // Execute command via MQTT
+          SendKey(1, i +1, 3);           // Execute command via MQTT
         }
       }
 
       if (mode) {
         button = virtualswitch[i];
       } else {
-        button = digitalRead(pin[GPIO_SWT1 +i]);
+        if (!((uptime < 4) && (0 == pin[GPIO_SWT1 +i]))) {  // Block GPIO0 for 4 seconds after poweron to workaround Wemos D1 RTS circuit
+          button = digitalRead(pin[GPIO_SWT1 +i]);
+        }
       }
 
       if (button != lastwallswitch[i]) {
@@ -1816,7 +1837,7 @@ void SwitchHandler(byte mode)
           break;
         case PUSHBUTTONHOLD:
           if ((PRESSED == button) && (NOT_PRESSED == lastwallswitch[i])) {
-            holdwallswitch[i] = Settings.param[P_HOLD_TIME] * (STATES / 10);
+            holdwallswitch[i] = loops_per_second * Settings.param[P_HOLD_TIME] / 10;
           }
           if ((NOT_PRESSED == button) && (PRESSED == lastwallswitch[i]) && (holdwallswitch[i])) {
             holdwallswitch[i] = 0;
@@ -1825,18 +1846,18 @@ void SwitchHandler(byte mode)
           break;
         case PUSHBUTTONHOLD_INV:
           if ((NOT_PRESSED == button) && (PRESSED == lastwallswitch[i])) {
-            holdwallswitch[i] = Settings.param[P_HOLD_TIME] * (STATES / 10);
+            holdwallswitch[i] = loops_per_second * Settings.param[P_HOLD_TIME] / 10;
           }
           if ((PRESSED == button) && (NOT_PRESSED == lastwallswitch[i]) && (holdwallswitch[i])) {
             holdwallswitch[i] = 0;
-            switchflag = 2;             // Toggle with pushbutton to Gnd
+            switchflag = 2;              // Toggle with pushbutton to Gnd
           }
           break;
         }
 
         if (switchflag < 3) {
           if (!SendKey(1, i +1, switchflag)) {  // Execute command via MQTT
-            ExecuteCommandPower(i +1, switchflag, SRC_SWITCH);        // Execute command internally (if i < devices_present)
+            ExecuteCommandPower(i +1, switchflag, SRC_SWITCH);  // Execute command internally (if i < devices_present)
           }
         }
 
@@ -1849,15 +1870,6 @@ void SwitchHandler(byte mode)
 /*********************************************************************************************\
  * State loops
 \*********************************************************************************************/
-
-void Every50mSeconds()
-{
-  // As the max amount of sleep = 250 mSec this loop will shift in time...
-
-  ButtonHandler();
-  SwitchHandler(0);
-}
-
 /*-------------------------------------------------------------------------------------------*\
  * Every 0.1 second
 \*-------------------------------------------------------------------------------------------*/
@@ -2607,20 +2619,25 @@ void loop()
 
   OsWatchLoop();
 
+  if (TimeReached(button_debounce)) {
+    SetNextTimeInterval(button_debounce, Settings.button_debounce);
+    ButtonHandler();
+  }
+  if (TimeReached(switch_debounce)) {
+    SetNextTimeInterval(switch_debounce, Settings.switch_debounce);
+    SwitchHandler(0);
+  }
   if (TimeReached(state_50msecond)) {
     SetNextTimeInterval(state_50msecond, 50);
-    Every50mSeconds();
     XdrvCall(FUNC_EVERY_50_MSECOND);
     XsnsCall(FUNC_EVERY_50_MSECOND);
   }
-
   if (TimeReached(state_100msecond)) {
     SetNextTimeInterval(state_100msecond, 100);
     Every100mSeconds();
     XdrvCall(FUNC_EVERY_100_MSECOND);
     XsnsCall(FUNC_EVERY_100_MSECOND);
   }
-
   if (TimeReached(state_250msecond)) {
     SetNextTimeInterval(state_250msecond, 250);
     Every250mSeconds();
diff --git a/sonoff/sonoff_version.h b/sonoff/sonoff_version.h
index 47c6bb893..c498dccec 100644
--- a/sonoff/sonoff_version.h
+++ b/sonoff/sonoff_version.h
@@ -20,7 +20,7 @@
 #ifndef _SONOFF_VERSION_H_
 #define _SONOFF_VERSION_H_
 
-#define VERSION            0x0601010B
+#define VERSION            0x0601010C
 
 #define D_PROGRAMNAME      "Sonoff-Tasmota"
 #define D_AUTHOR           "Theo Arends"
diff --git a/sonoff/support.ino b/sonoff/support.ino
index 90e31ce9c..654c998b8 100644
--- a/sonoff/support.ino
+++ b/sonoff/support.ino
@@ -309,6 +309,31 @@ char* NoAlNumToUnderscore(char* dest, const char* source)
   return dest;
 }
 
+void SetShortcut(char* str, uint8_t action)
+{
+  if ('\0' != str[0]) {     // There must be at least one character in the buffer
+    str[0] = '0' + action;  // SC_CLEAR, SC_DEFAULT, SC_USER
+    str[1] = '\0';
+  }
+}
+
+uint8_t Shortcut(const char* str)
+{
+  uint8_t result = 10;
+
+  if ('\0' == str[1]) {    // Only allow single character input for shortcut
+    if (('"' == str[0]) || ('0' == str[0])) {
+      result = SC_CLEAR;
+    } else {
+      result = atoi(str);  // 1 = SC_DEFAULT, 2 = SC_USER
+      if (0 == result) {
+        result = 10;
+      }
+    }
+  }
+  return result;
+}
+
 boolean ParseIp(uint32_t* addr, const char* str)
 {
   uint8_t *part = (uint8_t*)addr;
@@ -1186,6 +1211,7 @@ void WiFiSetSleepMode()
  * See https://github.com/arendst/Sonoff-Tasmota/issues/2559
  */
 
+//#ifdef ARDUINO_ESP8266_RELEASE_2_4_1
 #if defined(ARDUINO_ESP8266_RELEASE_2_4_1) || defined(ARDUINO_ESP8266_RELEASE_2_4_2)
 #else  // Enabled in 2.3.0, 2.4.0 and stage
   if (sleep) {
diff --git a/sonoff/user_config.h b/sonoff/user_config.h
index 86761b663..3988bd8be 100644
--- a/sonoff/user_config.h
+++ b/sonoff/user_config.h
@@ -167,7 +167,9 @@
 #define APP_BLINKCOUNT         10                // [BlinkCount] Number of blinks (0 = 32000)
 #define APP_SLEEP              0                 // [Sleep] Sleep time to lower energy consumption (0 = Off, 1 - 250 mSec)
 
+#define KEY_DEBOUNCE_TIME      50                // [ButtonDebounce] Number of mSeconds button press debounce time
 #define KEY_HOLD_TIME          40                // [SetOption32] Number of 0.1 seconds to hold Button or external Pushbutton before sending HOLD message
+#define SWITCH_DEBOUNCE_TIME   50                // [SwitchDebounce] Number of mSeconds switch press debounce time
 #define SWITCH_MODE            TOGGLE            // [SwitchMode] TOGGLE, FOLLOW, FOLLOW_INV, PUSHBUTTON, PUSHBUTTON_INV, PUSHBUTTONHOLD, PUSHBUTTONHOLD_INV, PUSHBUTTON_TOGGLE (the wall switch state)
 #define WS2812_LEDS            30                // [Pixels] Number of WS2812 LEDs to start with (max is 512)
 
@@ -292,8 +294,8 @@
 //  #define USE_SI1145                             // Enable SI1145/46/47 sensor (I2C address 0x60) (+1k code)
   #define USE_LM75AD                             // Enable LM75AD sensor (I2C addresses 0x48 - 0x4F) (+0k5 code)
 //  #define USE_APDS9960                           // Enable APDS9960 Proximity Sensor (I2C address 0x39). Disables SHT and VEML6070 (+4k7 code)
-//  #define USE_MCP230xx                           // Enable MCP23008/MCP23017 for GP INPUT ONLY (I2C addresses 0x20 - 0x27) providing command Sensor29 for configuration (+2k2 code)
-//    #define USE_MCP230xx_OUTPUT                  // Enable MCP23008/MCP23017 OUTPUT support through sensor29 commands (+1k code)
+//  #define USE_MCP230xx                           // Enable MCP23008/MCP23017 for GP INPUT ONLY (I2C addresses 0x20 - 0x27) providing command Sensor29 for configuration (+4k7 code)
+//    #define USE_MCP230xx_OUTPUT                  // Enable MCP23008/MCP23017 OUTPUT support through sensor29 commands (+1k5 code)
 //    #define USE_MCP230xx_DISPLAYOUTPUT           // Enable MCP23008/MCP23017 to display state of OUTPUT pins on Web UI (+0k2 code)
 //  #define USE_MPR121                             // Enable MPR121 controller (I2C addresses 0x5A, 0x5B, 0x5C and 0x5D) in input mode for touch buttons (+1k3 code)
 //  #define USE_CCS811                             // Enable CCS811 sensor (I2C address 0x5A) (+2k2 code)
diff --git a/sonoff/xdrv_01_mqtt.ino b/sonoff/xdrv_01_mqtt.ino
index f03a75c19..de0df8f9f 100644
--- a/sonoff/xdrv_01_mqtt.ino
+++ b/sonoff/xdrv_01_mqtt.ino
@@ -555,7 +555,7 @@ bool MqttCommand()
   }
   else if (CMND_MQTTHOST == command_code) {
     if ((data_len > 0) && (data_len < sizeof(Settings.mqtt_host))) {
-      strlcpy(Settings.mqtt_host, (!strcmp(dataBuf,"0")) ? "" : (1 == payload) ? MQTT_HOST : dataBuf, sizeof(Settings.mqtt_host));
+      strlcpy(Settings.mqtt_host, (SC_CLEAR == Shortcut(dataBuf)) ? "" : (SC_DEFAULT == Shortcut(dataBuf)) ? MQTT_HOST : dataBuf, sizeof(Settings.mqtt_host));
       restart_flag = 2;
     }
     snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_SVALUE, command, Settings.mqtt_host);
@@ -587,14 +587,13 @@ bool MqttCommand()
   else if ((CMND_MQTTFINGERPRINT == command_code) && (index > 0) && (index <= 2)) {
     char fingerprint[60];
     if ((data_len > 0) && (data_len < sizeof(fingerprint))) {
-      strlcpy(fingerprint, (!strcmp(dataBuf,"0")) ? "" : (1 == payload) ? (1 == index) ? MQTT_FINGERPRINT1 : MQTT_FINGERPRINT2 : dataBuf, sizeof(fingerprint));
+      strlcpy(fingerprint, (SC_CLEAR == Shortcut(dataBuf)) ? "" : (SC_DEFAULT == Shortcut(dataBuf)) ? (1 == index) ? MQTT_FINGERPRINT1 : MQTT_FINGERPRINT2 : dataBuf, sizeof(fingerprint));
       char *p = fingerprint;
       for (byte i = 0; i < 20; i++) {
         Settings.mqtt_fingerprint[index -1][i] = strtol(p, &p, 16);
       }
       restart_flag = 2;
     }
-
     fingerprint[0] = '\0';
     for (byte i = 0; i < sizeof(Settings.mqtt_fingerprint[index -1]); i++) {
       snprintf_P(fingerprint, sizeof(fingerprint), PSTR("%s%s%02X"), fingerprint, (i) ? " " : "", Settings.mqtt_fingerprint[index -1][i]);
@@ -604,21 +603,21 @@ bool MqttCommand()
 #endif
   else if ((CMND_MQTTCLIENT == command_code) && !grpflg) {
     if ((data_len > 0) && (data_len < sizeof(Settings.mqtt_client))) {
-      strlcpy(Settings.mqtt_client, (1 == payload) ? MQTT_CLIENT_ID : dataBuf, sizeof(Settings.mqtt_client));
+      strlcpy(Settings.mqtt_client, (SC_DEFAULT == Shortcut(dataBuf)) ? MQTT_CLIENT_ID : dataBuf, sizeof(Settings.mqtt_client));
       restart_flag = 2;
     }
     snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_SVALUE, command, Settings.mqtt_client);
   }
   else if (CMND_MQTTUSER == command_code) {
     if ((data_len > 0) && (data_len < sizeof(Settings.mqtt_user))) {
-      strlcpy(Settings.mqtt_user, (!strcmp(dataBuf,"0")) ? "" : (1 == payload) ? MQTT_USER : dataBuf, sizeof(Settings.mqtt_user));
+      strlcpy(Settings.mqtt_user, (SC_CLEAR == Shortcut(dataBuf)) ? "" : (SC_DEFAULT == Shortcut(dataBuf)) ? MQTT_USER : dataBuf, sizeof(Settings.mqtt_user));
       restart_flag = 2;
     }
     snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_SVALUE, command, Settings.mqtt_user);
   }
   else if (CMND_MQTTPASSWORD == command_code) {
     if ((data_len > 0) && (data_len < sizeof(Settings.mqtt_pwd))) {
-      strlcpy(Settings.mqtt_pwd, (!strcmp(dataBuf,"0")) ? "" : (1 == payload) ? MQTT_PASS : dataBuf, sizeof(Settings.mqtt_pwd));
+      strlcpy(Settings.mqtt_pwd, (SC_CLEAR == Shortcut(dataBuf)) ? "" : (SC_DEFAULT == Shortcut(dataBuf)) ? MQTT_PASS : dataBuf, sizeof(Settings.mqtt_pwd));
       snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_SVALUE, command, Settings.mqtt_pwd);
       restart_flag = 2;
     } else {
@@ -628,8 +627,8 @@ bool MqttCommand()
   else if (CMND_FULLTOPIC == command_code) {
     if ((data_len > 0) && (data_len < sizeof(Settings.mqtt_fulltopic))) {
       MakeValidMqtt(1, dataBuf);
-      if (!strcmp(dataBuf, mqtt_client)) payload = 1;
-      strlcpy(stemp1, (1 == payload) ? MQTT_FULLTOPIC : dataBuf, sizeof(stemp1));
+      if (!strcmp(dataBuf, mqtt_client)) SetShortcut(dataBuf, SC_DEFAULT);
+      strlcpy(stemp1, (SC_DEFAULT == Shortcut(dataBuf)) ? MQTT_FULLTOPIC : dataBuf, sizeof(stemp1));
       if (strcmp(stemp1, Settings.mqtt_fulltopic)) {
         snprintf_P(mqtt_data, sizeof(mqtt_data), (Settings.flag.mqtt_offline) ? S_OFFLINE : "");
         MqttPublishPrefixTopic_P(TELE, PSTR(D_LWT), true);  // Offline or remove previous retained topic
@@ -642,7 +641,7 @@ bool MqttCommand()
   else if ((CMND_PREFIX == command_code) && (index > 0) && (index <= 3)) {
     if ((data_len > 0) && (data_len < sizeof(Settings.mqtt_prefix[0]))) {
       MakeValidMqtt(0, dataBuf);
-      strlcpy(Settings.mqtt_prefix[index -1], (1 == payload) ? (1==index)?SUB_PREFIX:(2==index)?PUB_PREFIX:PUB_PREFIX2 : dataBuf, sizeof(Settings.mqtt_prefix[0]));
+      strlcpy(Settings.mqtt_prefix[index -1], (SC_DEFAULT == Shortcut(dataBuf)) ? (1==index)?SUB_PREFIX:(2==index)?PUB_PREFIX:PUB_PREFIX2 : dataBuf, sizeof(Settings.mqtt_prefix[0]));
 //      if (Settings.mqtt_prefix[index -1][strlen(Settings.mqtt_prefix[index -1])] == '/') Settings.mqtt_prefix[index -1][strlen(Settings.mqtt_prefix[index -1])] = 0;
       restart_flag = 2;
     }
@@ -668,8 +667,8 @@ bool MqttCommand()
   else if (CMND_GROUPTOPIC == command_code) {
     if ((data_len > 0) && (data_len < sizeof(Settings.mqtt_grptopic))) {
       MakeValidMqtt(0, dataBuf);
-      if (!strcmp(dataBuf, mqtt_client)) payload = 1;
-      strlcpy(Settings.mqtt_grptopic, (1 == payload) ? MQTT_GRPTOPIC : dataBuf, sizeof(Settings.mqtt_grptopic));
+      if (!strcmp(dataBuf, mqtt_client)) SetShortcut(dataBuf, SC_DEFAULT);
+      strlcpy(Settings.mqtt_grptopic, (SC_DEFAULT == Shortcut(dataBuf)) ? MQTT_GRPTOPIC : dataBuf, sizeof(Settings.mqtt_grptopic));
       restart_flag = 2;
     }
     snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_SVALUE, command, Settings.mqtt_grptopic);
@@ -677,8 +676,8 @@ bool MqttCommand()
   else if ((CMND_TOPIC == command_code) && !grpflg) {
     if ((data_len > 0) && (data_len < sizeof(Settings.mqtt_topic))) {
       MakeValidMqtt(0, dataBuf);
-      if (!strcmp(dataBuf, mqtt_client)) payload = 1;
-      strlcpy(stemp1, (1 == payload) ? MQTT_TOPIC : dataBuf, sizeof(stemp1));
+      if (!strcmp(dataBuf, mqtt_client)) SetShortcut(dataBuf, SC_DEFAULT);
+      strlcpy(stemp1, (SC_DEFAULT == Shortcut(dataBuf)) ? MQTT_TOPIC : dataBuf, sizeof(stemp1));
       if (strcmp(stemp1, Settings.mqtt_topic)) {
         snprintf_P(mqtt_data, sizeof(mqtt_data), (Settings.flag.mqtt_offline) ? S_OFFLINE : "");
         MqttPublishPrefixTopic_P(TELE, PSTR(D_LWT), true);  // Offline or remove previous retained topic
@@ -691,22 +690,26 @@ bool MqttCommand()
   else if ((CMND_BUTTONTOPIC == command_code) && !grpflg) {
     if ((data_len > 0) && (data_len < sizeof(Settings.button_topic))) {
       MakeValidMqtt(0, dataBuf);
-      if (!strcmp(dataBuf, mqtt_client)) payload = 1;
-      if (!strcmp(dataBuf,"0")) strlcpy(Settings.button_topic, "", sizeof(Settings.button_topic));
-      else if (1 == payload) strlcpy(Settings.button_topic, mqtt_topic, sizeof(Settings.button_topic));
-      else if (2 == payload) strlcpy(Settings.button_topic, MQTT_BUTTON_TOPIC, sizeof(Settings.button_topic));
-      else strlcpy(Settings.button_topic, dataBuf, sizeof(Settings.button_topic));
+      if (!strcmp(dataBuf, mqtt_client)) SetShortcut(dataBuf, SC_DEFAULT);
+      switch (Shortcut(dataBuf)) {
+        case SC_CLEAR: strlcpy(Settings.button_topic, "", sizeof(Settings.button_topic)); break;
+        case SC_DEFAULT: strlcpy(Settings.button_topic, mqtt_topic, sizeof(Settings.button_topic)); break;
+        case SC_USER: strlcpy(Settings.button_topic, MQTT_BUTTON_TOPIC, sizeof(Settings.button_topic)); break;
+        default: strlcpy(Settings.button_topic, dataBuf, sizeof(Settings.button_topic));
+      }
     }
     snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_SVALUE, command, Settings.button_topic);
   }
   else if (CMND_SWITCHTOPIC == command_code) {
     if ((data_len > 0) && (data_len < sizeof(Settings.switch_topic))) {
       MakeValidMqtt(0, dataBuf);
-      if (!strcmp(dataBuf, mqtt_client)) payload = 1;
-      if (!strcmp(dataBuf,"0")) strlcpy(Settings.switch_topic, "", sizeof(Settings.switch_topic));
-      else if (1 == payload) strlcpy(Settings.switch_topic, mqtt_topic, sizeof(Settings.switch_topic));
-      else if (2 == payload) strlcpy(Settings.switch_topic, MQTT_SWITCH_TOPIC, sizeof(Settings.switch_topic));
-      else strlcpy(Settings.switch_topic, dataBuf, sizeof(Settings.switch_topic));
+      if (!strcmp(dataBuf, mqtt_client)) SetShortcut(dataBuf, SC_DEFAULT);
+      switch (Shortcut(dataBuf)) {
+        case SC_CLEAR: strlcpy(Settings.switch_topic, "", sizeof(Settings.switch_topic)); break;
+        case SC_DEFAULT: strlcpy(Settings.switch_topic, mqtt_topic, sizeof(Settings.switch_topic)); break;
+        case SC_USER: strlcpy(Settings.switch_topic, MQTT_SWITCH_TOPIC, sizeof(Settings.switch_topic)); break;
+        default: strlcpy(Settings.switch_topic, dataBuf, sizeof(Settings.switch_topic));
+      }
     }
     snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_SVALUE, command, Settings.switch_topic);
   }
diff --git a/sonoff/xdrv_02_webserver.ino b/sonoff/xdrv_02_webserver.ino
index caa002aa4..b7ca9ecd8 100644
--- a/sonoff/xdrv_02_webserver.ino
+++ b/sonoff/xdrv_02_webserver.ino
@@ -2019,7 +2019,7 @@ bool WebCommand()
   }
   else if (CMND_WEBPASSWORD == command_code) {
     if ((XdrvMailbox.data_len > 0) && (XdrvMailbox.data_len < sizeof(Settings.web_password))) {
-      strlcpy(Settings.web_password, (!strcmp(XdrvMailbox.data,"0")) ? "" : (1 == XdrvMailbox.payload) ? WEB_PASSWORD : XdrvMailbox.data, sizeof(Settings.web_password));
+      strlcpy(Settings.web_password, (SC_CLEAR == Shortcut(XdrvMailbox.data)) ? "" : (SC_DEFAULT == Shortcut(XdrvMailbox.data)) ? WEB_PASSWORD : XdrvMailbox.data, sizeof(Settings.web_password));
       snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_SVALUE, command, Settings.web_password);
     } else {
       snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_ASTERIX, command);
diff --git a/sonoff/xdrv_06_snfbridge.ino b/sonoff/xdrv_06_snfbridge.ino
index 729cd51dc..73c93d374 100644
--- a/sonoff/xdrv_06_snfbridge.ino
+++ b/sonoff/xdrv_06_snfbridge.ino
@@ -316,13 +316,20 @@ void SonoffBridgeReceived()
 boolean SonoffBridgeSerialInput()
 {
   // iTead Rf Universal Transceiver Module Serial Protocol Version 1.0 (20170420)
+  int8_t receive_len = 0;
+
   if (sonoff_bridge_receive_flag) {
     if (sonoff_bridge_receive_raw_flag) {
       if (!serial_in_byte_counter) {
         serial_in_buffer[serial_in_byte_counter++] = 0xAA;
       }
       serial_in_buffer[serial_in_byte_counter++] = serial_in_byte;
-      if (0x55 == serial_in_byte) {  // 0x55 - End of text
+      if (serial_in_byte_counter > 2) {
+        if ((0xA6 == serial_in_buffer[1]) || (0xAB == serial_in_buffer[1])) {  // AA A6 06 023908010155 55 - 06 is receive_len
+          receive_len = serial_in_buffer[2] + 3 - serial_in_byte_counter;      // Get at least receive_len bytes
+        }
+      }
+      if ((0 == receive_len) && (0x55 == serial_in_byte)) {  // 0x55 - End of text
         SonoffBridgeReceivedRaw();
         sonoff_bridge_receive_flag = 0;
         return 1;
diff --git a/sonoff/xdrv_10_rules.ino b/sonoff/xdrv_10_rules.ino
index 4139d0273..f0b8611f6 100644
--- a/sonoff/xdrv_10_rules.ino
+++ b/sonoff/xdrv_10_rules.ino
@@ -155,6 +155,24 @@ bool RulesRuleMatch(byte rule_set, String &event, String &rule)
         break;
       }
     }
+    snprintf_P(stemp, sizeof(stemp), PSTR("%%TIME%%"));
+    if (rule_param.startsWith(stemp)) {
+      rule_param = String(GetMinutesPastMidnight());
+    }
+    snprintf_P(stemp, sizeof(stemp), PSTR("%%UPTIME%%"));
+    if (rule_param.startsWith(stemp)) {
+      rule_param = String(GetMinutesUptime());
+    }
+#if defined(USE_TIMERS) && defined(USE_SUNRISE)
+    snprintf_P(stemp, sizeof(stemp), PSTR("%%SUNRISE%%"));
+    if (rule_param.startsWith(stemp)) {
+      rule_param = String(GetSunMinutes(0));
+    }
+    snprintf_P(stemp, sizeof(stemp), PSTR("%%SUNSET%%"));
+    if (rule_param.startsWith(stemp)) {
+      rule_param = String(GetSunMinutes(1));
+    }
+#endif  // USE_TIMERS and USE_SUNRISE
     rule_param.toUpperCase();
     snprintf(rule_svalue, sizeof(rule_svalue), rule_param.c_str());
 
@@ -522,13 +540,13 @@ boolean RulesCommand()
   }
   else if ((CMND_VAR == command_code) && (index > 0) && (index <= MAX_RULE_VARS)) {
     if (XdrvMailbox.data_len > 0) {
-      strlcpy(vars[index -1], ('"' == XdrvMailbox.data[0]) ? "" : XdrvMailbox.data, sizeof(vars[index -1]));
+      strlcpy(vars[index -1], (SC_CLEAR == Shortcut(XdrvMailbox.data)) ? "" : XdrvMailbox.data, sizeof(vars[index -1]));
     }
     snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_INDEX_SVALUE, command, index, vars[index -1]);
   }
   else if ((CMND_MEM == command_code) && (index > 0) && (index <= MAX_RULE_MEMS)) {
     if (XdrvMailbox.data_len > 0) {
-      strlcpy(Settings.mems[index -1], ('"' == XdrvMailbox.data[0]) ? "" : XdrvMailbox.data, sizeof(Settings.mems[index -1]));
+      strlcpy(Settings.mems[index -1], (SC_CLEAR == Shortcut(XdrvMailbox.data)) ? "" : XdrvMailbox.data, sizeof(Settings.mems[index -1]));
     }
     snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_INDEX_SVALUE, command, index, Settings.mems[index -1]);
   }
diff --git a/tools/fw_efm8bb1/RF_Bridge_00.hex b/tools/fw_efm8bb1/RF-Bridge-EFM8BB1-20180320.hex
similarity index 100%
rename from tools/fw_efm8bb1/RF_Bridge_00.hex
rename to tools/fw_efm8bb1/RF-Bridge-EFM8BB1-20180320.hex
diff --git a/tools/fw_efm8bb1/RF-Bridge-EFM8BB1-20180816.hex b/tools/fw_efm8bb1/RF-Bridge-EFM8BB1-20180816.hex
new file mode 100644
index 000000000..b51bb158c
--- /dev/null
+++ b/tools/fw_efm8bb1/RF-Bridge-EFM8BB1-20180816.hex
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