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## Migration Information
See [wiki migration path ](https://github.com/arendst/Sonoff-Tasmota/wiki/Upgrade#migration-path ) for instructions how to migrate to a major version. Pay attention to the following version breaks due to dynamic settings updates:
1. Migrate to **Sonoff-Tasmota 3.9.x**
2. Migrate to **Sonoff-Tasmota 4.x**
3. Migrate to **Sonoff-Tasmota 5.14**
4. Migrate to **Sonoff-Tasmota 6.x**
## Release notes
### Change in default initial configuration tool
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Firmware binary **sonoff-classic.bin** supports **WifiManager, Wps and SmartConfig** for initial configuration. The default tool is **Wps** .
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To save memory space all other binaries support **WifiManager only** .
See _changelog.ino how to enable them again.
- Define WIFI_CONFIG_TOOL now contains the default behaviour once a SSID has been configured.
- If no SSID is configured making a wifi connection impossible the new define WIFI_CONFIG_NO_SSID will be used.
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- While define WIFI_CONFIG_NO_SSID is set to WIFI_WPSCONFIG in my_user_config.h the compiler will check for define USE_WPS and if not enabled WIFI_CONFIG_NO_SSID will default to WIFI_MANAGER using the webserver. If define USE_WEBSERVER is also not enabled WIFI_CONFIG_NO_SSID will default to WIFI_SMARTCONFIG. If define USE_SMARTCONFIG is also not enabled WIFI_CONFIG_NO_SSID will default to a new option WIFI_SERIAL allowing to enter wifi parameters to serial which is always possible.
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## Supported Modules
The following hardware modules are supported.
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Module | Description
------------------|-----------------------
01 Sonoff Basic | Sonoff Basic Wifi Smart Switch
02 Sonoff RF | Sonoff RF Wifi Smart Switch with RF (434MHz) receiver
03 Sonoff SV | Sonoff SV Safe Voltage Wifi Smart Switch
04 Sonoff TH | Sonoff TH10/TH16 Wifi Smart Switch with Sensor connection
05 Sonoff Dual | Sonoff Dual Wifi Smart Switch
06 Sonoff Pow | Sonoff Pow Wifi Smart Switch with Energy Monitoring
07 Sonoff 4CH | Sonoff 4CH 4-gang Wifi Smart Switch
08 Sonoff S2X | Sonoff S20/S26 Wifi Smart Socket
09 Slampher | Sonoff Slampher Wifi Smart Light Bulb Socket with RF (434MHz) receiver
10 Sonoff Touch | Sonoff Touch Wifi Light Switch
11 Sonoff LED | Sonoff Led Wifi Led Pack (Retired)
12 1 Channel | 1 Channel Inching/Self Locking Wifi Switch 5V/12V
13 4 Channel | 4 Channel Inching/Self Locking Wifi Switch (Retired)
14 Motor C/AC | Motor Clockwise/Antoclockwise Wifi Switch (Retired)
15 ElectroDragon | Electrodragon Wifi IoT Board
16 EXS Relay(s) | Electronic Experience Store 1 or 2-gang Wifi Module
17 WiOn | WiOn Wifi Smart Socket
18 Generic | Any ESP8266/ESP8285 device like WeMos and NodeMCU
19 Sonoff Dev | Sonoff Dev Wifi Development Board
20 H801 | H801 Wifi RGBWW Led Controller
21 Sonoff SC | Sonoff SC Wifi Environmental Monitor
22 Sonoff BN-SZ | Sonoff BN-SZ01 Wifi Ceiling Led (Retired)
23 Sonoff 4CH Pro | Sonoff 4CH Pro 4-gang Wifi Smart Switch
24 Huafan SS | HuaFan Wifi Smart Socket
25 Sonoff Bridge | Sonoff RF (434MHz) transceive to Wifi Bridge
26 Sonoff B1 | Sonoff B1 Wifi RGBWW Led Bulb
27 AiLight | Ai-Thinker RGBW Led Bulb
28 Sonoff T1 1CH | Sonoff T1 1-gang Wifi Light Switch
29 Sonoff T1 2CH | Sonoff T1 2-gang Wifi Light Switch
30 Sonoff T1 3CH | Sonoff T1 3-gang Wifi Light Switch
31 Supla Espablo | 2-gang Wifi Module
32 Witty Cloud | Witty Cloud ESP8266 Wifi Development Board
33 Yunshan Relay | ESP8266 Wifi Network Relay Module
34 MagicHome | MagicHome, Flux-light and some Arilux LC10 RGB(W) Led Controller
35 Luani HVIO | Luani ESP8266 Wifi I/O Module
36 KMC 70011 | KMC Wifi Smart Socket with Energy Monitoring
37 Arilux LC01 | Arilux AL-LC01 RGB Led Controller
38 Arilux LC11 | Arilux AL-LC11 RGBWW Led Controller
39 Sonoff Dual R2 | Sonoff Dual R2 Wifi Smart Switch
40 Arilux LC06 | Arilux AL-LC06 RGB(WW) Led Controller
41 Sonoff S31 | Sonoff S31 Wifi Smart Socket with Energy Monitoring
42 Zengge WF017 | Zengge WF017 Wifi RGB(W) Led Controller
43 Sonoff Pow R2 | Sonoff Pow R2 Wifi Smart Switch with Energy Monitoring
44 Sonoff iFan02 | Sonoff iFan02 Wifi Smart Ceiling Fan with Light
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45 BlitzWolf SHP | BlitzWolf BW-SHP2, BW-SHP6, HomeCube SP1, Gosund SP111, Teckin SP22 Wifi Smart Switch with Energy Monitoring
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46 Shelly 1 | Shelly 1 Open Source Wifi Relay Module
47 Shelly 2 | Shelly 2 Wifi 2-gang Relay Module with Energy Monitoring
48 Xiaomi Philips | Xiaomi Philips Wifi WW Led Bulb
49 Neo Coolcam | Neo Coolcam Wifi Smart Socket
50 ESP Switch | ESP Switch 4-gang Wifi Switch with Leds
51 OBI Socket | OBI Wifi Smart Socket
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52 Teckin | Teckin SP20 Wifi Smart Switch with Energy Monitoring
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53 AplicWDP303075 | Aplic WDP 303075 CSL Wifi Smart Switch with Energy Monitoring
54 Tuya Dimmer | MIUO (and other Tuya based) Wifi Dimmer for Incandescent Lights and Led
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55 Gosund SP1 v23 | Gosund SP1 v2.3 Wifi Smart Switch with Energy Monitoring
56 ARMTR Dimmer | ARMtronix Wifi dimmer for Incandescent Lights and Led
57 SK03 Outdoor | SK03 Outdoor Wifi Smart Switch with Energy Monitoring
58 PS-16-DZ | PS-16-DZ Wifi dimmer for Incandescent Lights and Led
59 Teckin US | Teckin US and ZooZee SA102 Wifi Smart Switch with Energy Monitoring
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60 Manzoku strip | Manzoku Wifi Smart Power Strip with four Relays
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## Provided Binary Downloads
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The following binary downloads have been compiled with ESP8266/Arduino library core version **2.4.2** patched with the Alexa fix.
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- **sonoff-minimal.bin** = The Minimal version allows intermediate OTA uploads to support larger versions and does NOT change any persistent parameter. This version **should NOT be used for initial installation** .
- **sonoff-classic.bin** = The Classic version allows **initial installation** using either WifiManager, Wps or SmartConfig.
- **sonoff.bin** = The Sonoff version without Wps and SmartConfig configuration but adds more sensors.
- **sonoff-BG.bin** to **sonoff-TW.bin** = The Sonoff version without Wps and SmartConfig configuration in different languages.
- **sonoff-sensors.bin** = The Sensors version without Wps and SmartConfig configuration but adds even more useful sensors.
- **sonoff-display.bin** = The Display version without Wps and SmartConfig configuration but adds display support.
- **sonoff-knx.bin** = The Knx version without Wps and SmartConfig configuration and some other features but adds KNX support.
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### Available Features and Sensors
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| Feature or Sensor | minimal | basic | classic | sonoff | knx | sensors | Remarks
|--------------------------------|---------|-------|---------|--------|------|---------|--------
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| ESP/Arduino lib v2.3.0 | 346k | 429k | 482k | 504k | 522k | 535k |
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| ESP/Arduino lib v2.4.2 | 366k | 446k | 496k | 522k | 538k | 551k | No wifi sleep
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| | | | | | | |
| MY_LANGUAGE en-GB | x | x | x | x | x | x |
| MQTT_LIBRARY_TYPE PUBSUBCLIENT | x | x | x | x | x | x |
| USE_WPS | - | - | x | - | - | - | WPS
| USE_SMARTCONFIG | - | - | x | - | - | - | SmartConfig
| USE_ARDUINO_OTA | - | - | - | - | - | - |
| USE_DOMOTICZ | - | - | x | x | x | x |
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| USE_HOME_ASSISTANT | - | - | - | x | x | x |
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| USE_MQTT_TLS | - | - | - | - | - | - |
| USE_KNX | - | - | - | - | x | - |
| USE_WEBSERVER | x | x | x | x | x | x | WifiManager
| USE_EMULATION | - | x | x | x | - | x |
| USE_DISCOVERY | - | - | x | x | x | x |
| WEBSERVER_ADVERTISE | - | - | x | x | x | x |
| MQTT_HOST_DISCOVERY | - | - | x | x | x | x |
| USE_TIMERS | - | x | - | x | x | x |
| USE_TIMERS_WEB | - | x | - | x | x | x |
| USE_SUNRISE | - | x | - | x | x | x |
| USE_RULES | - | x | - | x | x | x |
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| | | | | | |
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| USE_ADC_VCC | x | x | x | x | x | - |
| USE_DS18B20 | - | - | - | - | - | - | Single sensor
| USE_DS18x20 | - | - | x | x | x | x | Multiple sensors
| USE_DS18x20_LEGACY | - | - | - | - | - | - | Multiple sensors
| | | | | | | |
| Feature or Sensor | minimal | basic | classic | sonoff | knx | sensors |
| USE_I2C | - | - | - | x | x | x |
| USE_SHT | - | - | - | x | x | x |
| USE_HTU | - | - | - | x | x | x |
| USE_BMP | - | - | - | x | x | x |
| USE_BME680 | - | - | - | - | - | x |
| USE_BH1750 | - | - | - | x | x | x |
| USE_VEML6070 | - | - | - | - | - | x |
| USE_ADS1115 | - | - | - | - | - | x |
| USE_ADS1115_I2CDEV | - | - | - | - | - | - |
| USE_INA219 | - | - | - | - | - | x |
| USE_SHT3X | - | - | - | x | x | x |
| USE_TSL2561 | - | - | - | - | - | x |
| USE_MGS | - | - | - | - | - | x |
| USE_SGP30 | - | - | - | x | x | x |
| USE_SI1145 | - | - | - | - | - | x |
| USE_LM75AD | - | - | - | x | x | x |
| USE_APDS9960 | - | - | - | - | - | - |
| USE_MCP230xx | - | - | - | - | - | - |
| USE_PCA9685 | - | - | - | - | - | - |
| USE_MPR121 | - | - | - | - | - | - |
| USE_CCS811 | - | - | - | - | - | - |
| USE_MPU6050 | - | - | - | - | - | - |
| USE_DS3231 | - | - | - | - | - | - |
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| USE_MGC3130 | - | - | - | - | - | - |
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| | | | | | | |
| Feature or Sensor | minimal | basic | classic | sonoff | knx | sensors |
| USE_SPI | - | - | - | - | - | - |
| USE_MHZ19 | - | - | - | x | x | x |
| USE_SENSEAIR | - | - | - | x | x | x |
| USE_PMS5003 | - | - | - | x | x | x |
| USE_NOVA_SDS | - | - | - | x | x | x |
| USE_PZEM004T | - | - | - | x | x | x |
| USE_PZEM_AC | - | - | - | x | x | x |
| USE_PZEM_DC | - | - | - | x | x | x |
| USE_MCP39F501 | - | x | - | x | x | x |
| USE_SERIAL_BRIDGE | - | - | - | x | x | x |
| USE_SDM120 | - | - | - | - | - | x |
| USE_SDM630 | - | - | - | - | - | x |
| USE_MP3_PLAYER | - | - | - | - | - | x |
| USE_TUYA_DIMMER | - | x | - | x | x | x |
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| USE_ARMTRONIX_DIMMERS | - | x | - | x | x | x |
| USE_PS_16_DZ | - | x | - | x | x | x |
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| USE_IR_REMOTE | - | - | - | x | x | x |
| USE_IR_HVAC | - | - | - | - | - | x |
| USE_IR_RECEIVE | - | - | - | x | x | x |
| USE_WS2812 | - | - | x | x | x | x |
| USE_WS2812_DMA | - | - | - | - | - | - |
| USE_ARILUX_RF | - | - | - | x | x | x |
| USE_SR04 | - | - | - | x | x | x |
| USE_TM1638 | - | - | - | - | - | x |
| USE_HX711 | - | - | - | x | x | x |
| USE_RF_FLASH | - | - | - | x | x | x |
| USE_TX20_WIND_SENSOR | - | - | - | x | x | x |
| USE_RC_SWITCH | - | - | - | x | x | x |
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| USE_RF_SENSOR | - | - | - | - | - | x | AlectoV2 only
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| USE_DISPLAY | - | - | - | - | - | - |
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## Changelog
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Version 6.4.0 20181217
* Change GUI Configure Module by using AJAX for data fetch to cut page size (and memory use) by 40%.
In case of web page errors clear your browser cache or do Page Reload (F5 or Ctrl+R)
* Change enforcing flashmode dout but it is still mandatory
* Change bootcount update (being first) flash write to 10 seconds after restart
* Change display and epaper drivers
* Change command WebSend Host header field from IP address to hostname (#4331)
* Change log buffer size from 512 to 520 to accommodate http sensor data (#4354)
* Change default WIFI_CONFIG_TOOL from WIFI_WAIT to WIFI_RETRY in my_user_config.h (#4400)
* Change webgui refresh time delay for Save Settings and local OTA Upload (#4423)
* Change SR-04 driver to use NewPing library (#4488)
* Change MCP230xx driver to support interrupt retention over teleperiod (#4547)
* Change support for MPU6050 using DMP (#4581)
* Fix unintended function overload of WifiState
* Fix wifi connection errors using wifi disconnect and ESP.reset instead of ESP.restart
* Fix Sonoff Pow R2 and Sonoff S31 Serial interface hang caused by Sonoff Basic R2 driver delay implementation (and possibly core bug)
* Fix MQTT connection error after restart
* Fix wifi re-scan connection baseline
* Fix possible strncat buffer overflows
* Fix intermittent Pzem sensor energy overflow calculation error
* Fix shelly2 ghost switching caused by lack of pull-up inputs (#4255)
* Fix hardware serial pin configuration. To keep using hardware serial swap current Rx/Tx pin configuration only (#4280)
* Fix MqttRetry values above 255 seconds (#4424)
* Fix WifiManager functionality on initial installation (#4433)
* Fix ArduinoOTA for Core 2.5.0 (#4620)
* Add minutes to commands Timezone to allow all possible world timezones
* Add more strict checks for GPIO selections
* Add code image and optional commit number to version
* Add dynamic delay to main loop providing time for wifi background tasks
* Add additional start-up delay during initial wifi connection
* Add support for decoding Theo V2 sensors as documented on https://sidweb.nl using 434MHz RF sensor receiver
* Add support for decoding Alecto V2 sensors like ACH2010, WS3000 and DKW2012 weather stations using 868MHz RF sensor receiver
* Add user definition of defines WIFI_RSSI_THRESHOLD (default 10) and WIFI_RESCAN_MINUTES (default 44)
* Add command SetOption58 0/1 to enable IR raw data info in JSON message (#2116)
* Add command IRSend \<frequency\>|0,\<rawdata1\>,\<rawdata2\>,.. to allow raw data transmission (#2116)
* Add command SetOption56 0/1 to enable wifi network scan and select highest RSSI (#3173)
* Add command SetOption57 0/1 to enable wifi network re-scan every 44 minutes with a rssi threshold of 10 to select highest RSSI (#3173)
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* Add support for SDM220 (#3610)
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* Add default sleep 1 to sonoff-basic to lower energy consumption (#4217)
* Add wifi status to Tuya (#4221)
* Add delays to reduce CPU usage at boot time (#4233)
* Add command SetOption24 0/1 to select pressure unit as hPa or mmHg (#4241)
* Add optional hardware serial when GPIO13(Rx) and GPIO15(Tx) are selected removing hardware serial from GPIO01(Tx) and GPIO03(Rx) (#4288)
* Add support for Gosund SP1 v2.3 Power Socket with Energy Monitoring (#4297)
* Add support for Armtronix dimmers. See wiki for info (#4321)
* Add to command WebSend option to send a direct path when command starts with a slash (#4329)
* Add support for LG HVac and IrRemote (#4377)
* Add initial support for Hass sensor discovery (#4380)
* Add support for Fujitsu HVac and IrRemote (#4387)
* Add support for I2C MGC3130 Electric Field Effect sensor by Christian Baars (#3774, #4404 )
* Add command CalcRes to set number of decimals (0 - 7) used in commands ADD, SUB, MULT and SCALE (#4420)
* Add CPU average load to state message (#4431)
* Add command SetOption59 0/1 to change state topic from tele/STATE to stat/RESULT (#4450)
* Add support for SM Smart Wifi Dimmer PS-16-DZ (#4465)
* Add support for Teckin US Power Socket with Energy Monitoring (#4481)
* Add command SetOption60 0/1 to select dynamic sleep (0) or sleep (1) (#4497)
* Add support for iFan02 Fanspeed in Domoticz using a selector (#4517)
* Add support for GPIO02 for newer Sonoff Basic (#4518)
* Add Announce Switches to MQTT Discovery (#4531)
* Add support for Manzoku Power Strip (#4590)
