diff --git a/README.md b/README.md
index 499602c..2be4eed 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Lighthub allows connecting together:
 * Modbus RTU devices (Currently, are deployed two types of Modbus devices: AC Dimmer and Ventilation set (Based on [Vacon 10 controller](http://files.danfoss.com/download/Drives/Vacon-10-Quick-Guide-DPD00714F1-UK.pdf))
 * Simple DMX wall sensor panel [like this](https://aliexpress.com/item/New-Ltech-D8-LED-rgb-RGBW-touch-panel-controller-DMX512-controller-DC12-24V-4-zones-4/32800199589.html)
 
-![alt text](LightHub.png "LightHub application diagram")
+![alt text](docs/LightHubAppDiagram.png "LightHub application diagram")
 
 Where is possible both, to configure local control/mapping between inputs and outputs (light, floor heating thermostats) and remote control from MQTT enabled software. At the moment, LightHub tested with following set of complementary free software:
 * [Openhab or Openhab2 Smarthome software](http://www.openhab.org/)
@@ -110,13 +110,9 @@ pio init --ide [atom|clion|codeblocks|eclipse|emacs|netbeans|qtcreator|sublimete
 ```
 Set custom build flags. first make your own copy of template
 ```bash
-cp build_flags_template.sh my_build_flags.sh
+cp custom_build_flags_template.py my_custom_build_flags.py
 ```
 then edit, change or comment unnecessary sections and source it
-```bash
-nano my_build_flags.sh
-source my_build_flags.sh
-```
 build and upload firmware for due|megaatmega2560|esp8266 board
 ```bash
 pio run -e due|megaatmega2560|esp8266 -t upload
@@ -144,9 +140,11 @@ platformio device monitor -b 115200
 * MODBUS_DISABLE // disable Modbus support
 * OWIRE_DISABLE // disable OneWire support
 * ARTNET_ENABLE //Enable Artnet protocol support
+* DAVR_DMXOUT_PIN=18 // Set Pin for DMXOUT on megaatmega2560
 * CONTROLLINO //Change Modbus port, direction pins and Wiznet SS pins to be working on [Controllino](http://controllino.biz/)
 
 
+
 # Default compilation behavior:
 * Config server: lazyhome.ru
 * Watchdog enabled
diff --git a/build_flags_template.sh b/build_flags_template.sh
deleted file mode 100644
index 0e97a40..0000000
--- a/build_flags_template.sh
+++ /dev/null
@@ -1,21 +0,0 @@
-#! /bin/bash
-# usage:
-# first make your own copy of template
-# cp build_flags_template.sh my_build_flags.sh
-# then edit, change or comment something
-# nano  my_build_flags.sh
-# and source it
-# source my_build_flags.sh
- export FLAGS="-DMY_CONFIG_SERVER=lazyhome.ru"
- export FLAGS="$FLAGS -DWATCH_DOG_TICKER_DISABLE"
- export FLAGS="$FLAGS -DUSE_1W_PIN=12"
- export FLAGS="$FLAGS -DSD_CARD_INSERTED"
- export FLAGS="$FLAGS -DSERIAL_BAUD=115200"
- export FLAGS="$FLAGS -DWiz5500"
- export FLAGS="$FLAGS -DDISABLE_FREERAM_PRINT"
- export FLAGS="$FLAGS -DCUSTOM_FIRMWARE_MAC=de:ad:be:ef:fe:00"
- export FLAGS="$FLAGS -DDMX_DISABLE"
- export FLAGS="$FLAGS -DMODBUS_DISABLE"
- export FLAGS="$FLAGS -DOWIRE_DISABLE"
- export PLATFORMIO_BUILD_FLAGS="$FLAGS"
- unset FLAGS
\ No newline at end of file
diff --git a/custom_build_flags_template.py b/custom_build_flags_template.py
new file mode 100644
index 0000000..c8d2f5a
--- /dev/null
+++ b/custom_build_flags_template.py
@@ -0,0 +1,25 @@
+# usage:
+# first make your own copy of template
+# cp custom_build_flags_template.py my_custom_build_flags.py
+# then edit, change or comment something
+
+import os
+print("==============================================Custom build flags are:=====================================================")
+FLAGS="-DMY_CONFIG_SERVER=lazyhome.ru"
+FLAGS+=" -DWATCH_DOG_TICKER_DISABLE"
+FLAGS+=" -DUSE_1W_PIN=12"
+FLAGS+=" -DSD_CARD_INSERTED"
+FLAGS+=" -DSERIAL_BAUD=115200"
+FLAGS+=" -DWiz5500"
+FLAGS+=" -DDISABLE_FREERAM_PRINT"
+FLAGS+=" -DCUSTOM_FIRMWARE_MAC=de:ad:be:ef:fe:00"
+FLAGS+=" -DDMX_DISABLE"
+FLAGS+=" -DMODBUS_DISABLE"
+FLAGS+=" -DOWIRE_DISABLE"
+FLAGS+=" -DARTNET_ENABLE"
+FLAGS+=" -DCONTROLLINO"
+FLAGS+=" -DAVR_DMXOUT_PIN=18"
+
+print(FLAGS)
+print("==============================================Custom build flags END=====================================================")
+os.environ["PLATFORMIO_BUILD_FLAGS"] = FLAGS
\ No newline at end of file
diff --git a/LightHub.png b/docs/LightHubAppDiagram.png
similarity index 100%
rename from LightHub.png
rename to docs/LightHubAppDiagram.png
diff --git a/platformio.ini b/platformio.ini
index 0df0f79..5e45e25 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -10,19 +10,16 @@
 [platformio]
 src_dir = lighthub
 env_default =
-;          due-5500
-;          controllino
 ;         megaatmega2560
-         megaatmega2560-5500
-;          due
+          due
 ;         esp8266
-
 [env:due]
 platform = atmelsam
 framework = arduino
 board = due
 lib_ldf_mode = chain+
-build_flags = !echo -n "-DPIO_SRC_REV="$(git rev-parse --short HEAD)
+build_flags = !echo -n "-DPIO_SRC_REV="$(git log --pretty=format:%h_%ad -1 --date=short)
+extra_scripts = pre:my_custom_build_flags.py
 lib_deps =
           https://github.com/sebnil/DueFlashStorage
           https://github.com/anklimov/Arduino-Temperature-Control-Library.git
@@ -33,12 +30,12 @@ lib_deps =
           https://github.com/anklimov/CmdArduino
           https://github.com/anklimov/ModbusMaster
           https://github.com/anklimov/Ethernet
-;          https://github.com/PaulStoffregen/SPI.git
+          https://github.com/anklimov/Ethernet2
           https://github.com/knolleary/pubsubclient.git
           https://github.com/anklimov/Artnet.git
           FastLED
-          161
-          322
+          SD
+          SdFat
 
 
 [env:megaatmega2560]
@@ -46,7 +43,8 @@ platform = atmelavr
 board = megaatmega2560
 framework = arduino
 ;lib_ldf_mode = chain+
-build_flags = !echo -n "-DPIO_SRC_REV="$(git rev-parse --short HEAD)
+build_flags = !echo -n "-DPIO_SRC_REV="$(git log --pretty=format:%h_%ad -1 --date=short)
+extra_scripts = pre:my_custom_build_flags.py
 lib_deps =
           https://github.com/anklimov/Arduino-Temperature-Control-Library.git
           https://github.com/anklimov/DS2482_OneWire
@@ -57,90 +55,21 @@ lib_deps =
           https://github.com/anklimov/ModbusMaster
           https://github.com/anklimov/DMXSerial
           https://github.com/anklimov/Ethernet
-          https://github.com/PaulStoffregen/SPI.git
-          https://github.com/knolleary/pubsubclient.git
-          https://github.com/anklimov/Artnet.git
-          FastLED
-        ;  161
-        ;  322
-
-[env:controllino]
-platform = atmelavr
-board = megaatmega2560
-framework = arduino
-build_flags = !echo -n "-DPIO_SRC_REV="$(git rev-parse --short HEAD)
-build_flags = -D CONTROLLINO -D CUSTOM_FIRMWARE_MAC=de:ad:be:ef:fe:07
-lib_deps =
-          https://github.com/anklimov/Arduino-Temperature-Control-Library.git
-          https://github.com/anklimov/DS2482_OneWire
-          https://github.com/anklimov/DmxSimple
-          https://github.com/anklimov/httpClient
-          https://github.com/anklimov/aJson
-          https://github.com/anklimov/CmdArduino
-          https://github.com/anklimov/ModbusMaster
-          https://github.com/anklimov/DMXSerial
-          https://github.com/anklimov/Ethernet
-          https://github.com/PaulStoffregen/SPI.git
-          https://github.com/knolleary/pubsubclient.git
-          https://github.com/anklimov/Artnet.git
-          FastLED
-          ;  161
-          ;  322
-
-[env:due-5500]
-platform = atmelsam
-framework = arduino
-board = due
-lib_ldf_mode = chain+
-build_flags = !echo -n "-DPIO_SRC_REV="$(git rev-parse --short HEAD)
-build_flags = -D Wiz5500 -D ARTNET_ENABLE
-lib_deps =
-          https://github.com/sebnil/DueFlashStorage
-          https://github.com/anklimov/Arduino-Temperature-Control-Library.git
-          https://github.com/anklimov/DS2482_OneWire
-          https://github.com/anklimov/DmxDue
-          https://github.com/anklimov/ArduinoHttpClient
-          https://github.com/anklimov/aJson
-          https://github.com/anklimov/CmdArduino
-          https://github.com/anklimov/ModbusMaster
-          https://github.com/anklimov/Ethernet2
-;          https://github.com/PaulStoffregen/SPI.git
-          https://github.com/knolleary/pubsubclient.git
-          https://github.com/anklimov/Artnet.git
-          FastLED
-;          161
-;          322
-
-[env:megaatmega2560-5500]
-platform = atmelavr
-board = megaatmega2560
-framework = arduino
-lib_ldf_mode = chain+
-build_flags = !echo -n "-DPIO_SRC_REV="$(git rev-parse --short HEAD)
-build_flags = -D Wiz5500 -D AVR_DMXOUT_PIN=18
-lib_deps =
-          https://github.com/anklimov/Arduino-Temperature-Control-Library.git
-          https://github.com/anklimov/DS2482_OneWire
-          https://github.com/anklimov/DmxSimple
-          https://github.com/anklimov/httpClient
-          https://github.com/anklimov/aJson
-          https://github.com/anklimov/CmdArduino
-          https://github.com/anklimov/ModbusMaster
-          https://github.com/anklimov/DMXSerial
           https://github.com/anklimov/Ethernet2
           https://github.com/PaulStoffregen/SPI.git
           https://github.com/knolleary/pubsubclient.git
           https://github.com/anklimov/Artnet.git
           FastLED
           EEPROM
-      ;    161
-      ;    322
+
+extra_scripts = pre:my_custom_build_flags.py
 
 [env:esp8266]
 platform = espressif8266
 framework = arduino
 board = nodemcuv2
 lib_ldf_mode = chain+
+extra_scripts = pre:my_custom_build_flags.py
 lib_deps =
           https://github.com/anklimov/Arduino-Temperature-Control-Library.git
           https://github.com/anklimov/DS2482_OneWire