diff --git a/.travis.yml b/.travis.yml
index 6a1c0ba..5c9e1b3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,15 +18,18 @@
       git:
         depth: false
         quiet: true
-        before_install:
-            - eval "${MATRIX_EVAL}"
-        install:
-        script:
-             - cd knx-linux
-             - mkdir -p build
-             - cd build
-             - cmake ..
-             - make
+
+      before_install:
+        - eval "${MATRIX_EVAL}"
+
+      install:
+      
+      script:
+        - cd knx-linux
+        - mkdir -p build
+        - cd build
+        - cmake ..
+        - make
 
     # Test build for Arduino platform
     - language: cpp
@@ -39,38 +42,38 @@
       git:
         depth: false
         quiet: true
-        before_install:
-            - downloadArduinoLib() { wget -O $1.zip $2; unzip -o $1.zip -d $HOME/arduino_ide/libraries; }
-            - source <(curl -SLs "https://raw.githubusercontent.com/adafruit/travis-ci-arduino/master/install.sh")
-            - downloadArduinoLib FlashStorage "https://github.com/thelsing/FlashStorage/archive/master.zip"
-            - downloadArduinoLib BSEC "https://github.com/BoschSensortec/BSEC-Arduino-library/archive/master.zip"
-            # only default warning level
-            - sed -i 's#compiler.warning_level=all#compiler.warning_level=default#' ~/.arduino15/preferences.txt
-            # changes for bsec lib
-            # samd
-            - sed -ri 's#(recipe.c.combine.pattern=[^$]*\{archive_file\}")( -Wl,--end-group)#\1 {compiler.libraries.ldflags}\2#' ~/.arduino15/packages/arduino/hardware/samd/1.8.4/platform.txt
-            - sed -i 's#compiler.elf2hex.extra_flags=#compiler.elf2hex.extra_flags=\ncompiler.libraries.ldflags=#' ~/.arduino15/packages/arduino/hardware/samd/1.8.4/platform.txt
-            # esp8266
-            - sed -ri 's#(recipe.c.combine.pattern=[^$]*\{compiler.c.elf.libs\})( -Wl,--end-group  "-L\{build.path\}")#\1 {compiler.libraries.ldflags}\2#' ~/.arduino15/packages/esp8266/hardware/esp8266/2.6.2/platform.txt
-            - sed -i 's#compiler.elf2hex.extra_flags=#compiler.elf2hex.extra_flags=\ncompiler.libraries.ldflags=#' ~/.arduino15/packages/esp8266/hardware/esp8266/2.6.2/platform.txt
-            - sed -i '/^.*libalgobsec.*$/d' ~/.arduino15/packages/esp8266/hardware/esp8266/2.6.2/tools/sdk/ld/eagle.app.v6.common.ld.h
-            - sed -ri 's#(\*libwps\.a:\(\.literal\.\* \.text\.\*\))#\1\n    *libalgobsec.a:(.literal.* .text.*)#' ~/.arduino15/packages/esp8266/hardware/esp8266/2.6.2/tools/sdk/ld/eagle.app.v6.common.ld.h
+      before_install:
+          - downloadArduinoLib() { wget -O $1.zip $2; unzip -o $1.zip -d $HOME/arduino_ide/libraries; }
+          - source <(curl -SLs "https://raw.githubusercontent.com/adafruit/travis-ci-arduino/master/install.sh")
+          - downloadArduinoLib FlashStorage "https://github.com/thelsing/FlashStorage/archive/master.zip"
+          - downloadArduinoLib BSEC "https://github.com/BoschSensortec/BSEC-Arduino-library/archive/master.zip"
+          # only default warning level
+          - sed -i 's#compiler.warning_level=all#compiler.warning_level=default#' ~/.arduino15/preferences.txt
+          # changes for bsec lib
+          # samd
+          - sed -ri 's#(recipe.c.combine.pattern=[^$]*\{archive_file\}")( -Wl,--end-group)#\1 {compiler.libraries.ldflags}\2#' ~/.arduino15/packages/arduino/hardware/samd/1.8.4/platform.txt
+          - sed -i 's#compiler.elf2hex.extra_flags=#compiler.elf2hex.extra_flags=\ncompiler.libraries.ldflags=#' ~/.arduino15/packages/arduino/hardware/samd/1.8.4/platform.txt
+          # esp8266
+          - sed -ri 's#(recipe.c.combine.pattern=[^$]*\{compiler.c.elf.libs\})( -Wl,--end-group  "-L\{build.path\}")#\1 {compiler.libraries.ldflags}\2#' ~/.arduino15/packages/esp8266/hardware/esp8266/2.6.2/platform.txt
+          - sed -i 's#compiler.elf2hex.extra_flags=#compiler.elf2hex.extra_flags=\ncompiler.libraries.ldflags=#' ~/.arduino15/packages/esp8266/hardware/esp8266/2.6.2/platform.txt
+          - sed -i '/^.*libalgobsec.*$/d' ~/.arduino15/packages/esp8266/hardware/esp8266/2.6.2/tools/sdk/ld/eagle.app.v6.common.ld.h
+          - sed -ri 's#(\*libwps\.a:\(\.literal\.\* \.text\.\*\))#\1\n    *libalgobsec.a:(.literal.* .text.*)#' ~/.arduino15/packages/esp8266/hardware/esp8266/2.6.2/tools/sdk/ld/eagle.app.v6.common.ld.h
 
-            # the HDC100X lib is not properly set up in githup so move things around a bit
-            - rm -rf $HOME/arduino_ide/libraries/HDC100X_Arduino_Library-master
-            - downloadArduinoLib HDC100X "https://github.com/RFgermany/HDC100X_Arduino_Library/archive/master.zip"
-            - mv $HOME/arduino_ide/libraries/HDC100X_Arduino_Library-master/HDC100X/* $HOME/arduino_ide/libraries/HDC100X_Arduino_Library-master
-            #- buildExampleSketch() { arduino --verify --board $BOARD $PWD/examples/$1/$1.ino; }
+          # the HDC100X lib is not properly set up in githup so move things around a bit
+          - rm -rf $HOME/arduino_ide/libraries/HDC100X_Arduino_Library-master
+          - downloadArduinoLib HDC100X "https://github.com/RFgermany/HDC100X_Arduino_Library/archive/master.zip"
+          - mv $HOME/arduino_ide/libraries/HDC100X_Arduino_Library-master/HDC100X/* $HOME/arduino_ide/libraries/HDC100X_Arduino_Library-master
+          #- buildExampleSketch() { arduino --verify --board $BOARD $PWD/examples/$1/$1.ino; }
 
-        install:
+      install:
           - arduino --install-library "WiFiManager"
-        script:
-            # - buildExampleSketch knx-demo
-            # - buildExampleSketch knx-sonoffS20
-            # - buildExampleSketch knx-bme680
-            # - buildExampleSketch knx-hdc1008
-             - build_platform zero
-             - build_platform esp8266
+      script:
+         # - buildExampleSketch knx-demo
+         # - buildExampleSketch knx-sonoffS20
+         # - buildExampleSketch knx-bme680
+         # - buildExampleSketch knx-hdc1008
+          - build_platform zero
+          - build_platform esp8266
 
     # Test build for PlatformIO based projects
     - language: python