diff --git a/README.md b/README.md
index 32f44724..57d73e0b 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,11 @@ A 3d-printable housing can be found here: https://www.thingiverse.com/thing:4571
 
 
 
-##### Rolling - (2020-09-16)
+##### Rolling - (2020-09-20)
+
+* Update HTML-Backround (thanks to michaeljoos72)
+
+2020-09-16
 
 * Impovements in hostname
 
diff --git a/code/src/CMakeLists.txt b/code/src/CMakeLists.txt
index 3a4eaf13..26822ce5 100644
--- a/code/src/CMakeLists.txt
+++ b/code/src/CMakeLists.txt
@@ -1,6 +1,14 @@
 # This file was automatically generated for projects
 # without default 'CMakeLists.txt' file.
 
+if(NOT CMAKE_BUILD_EARLY_EXPANSION) 
+ADD_CUSTOM_COMMAND(
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/version.cpp
+           ${CMAKE_CURRENT_BINARY_DIR}/_version.cpp
+    COMMAND ${CMAKE_COMMAND} -P
+            ${CMAKE_CURRENT_SOURCE_DIR}/version.cmake)
+endif()
+
 FILE(GLOB_RECURSE app_sources ${CMAKE_SOURCE_DIR}/src/*.*)
 
 # idf_component_register(SRCS ${app_sources})
diff --git a/code/src/main.cpp b/code/src/main.cpp
index 82f56d05..67cbf1cd 100644
--- a/code/src/main.cpp
+++ b/code/src/main.cpp
@@ -5,6 +5,7 @@
 
 #include "driver/gpio.h"
 #include "sdkconfig.h"
+//#include "version.h"
 
 #include "ClassLogFile.h"
 
diff --git a/code/src/version.cmake b/code/src/version.cmake
new file mode 100644
index 00000000..20c189b0
--- /dev/null
+++ b/code/src/version.cmake
@@ -0,0 +1,43 @@
+execute_process(COMMAND git log --pretty=format:'%h' -n 1
+                OUTPUT_VARIABLE GIT_REV
+                ERROR_QUIET)
+
+# Check whether we got any revision (which isn't
+# always the case, e.g. when someone downloaded a zip
+# file from Github instead of a checkout)
+if ("${GIT_REV}" STREQUAL "")
+    set(GIT_REV "N/A")
+    set(GIT_DIFF "")
+    set(GIT_TAG "N/A")
+    set(GIT_BRANCH "N/A")
+else()
+    execute_process(
+        COMMAND bash -c "git diff --quiet --exit-code || echo +"
+        OUTPUT_VARIABLE GIT_DIFF)
+    execute_process(
+        COMMAND git describe --exact-match --tags
+        OUTPUT_VARIABLE GIT_TAG ERROR_QUIET)
+    execute_process(
+        COMMAND git rev-parse --abbrev-ref HEAD
+        OUTPUT_VARIABLE GIT_BRANCH)
+
+    string(STRIP "${GIT_REV}" GIT_REV)
+    string(SUBSTRING "${GIT_REV}" 1 7 GIT_REV)
+    string(STRIP "${GIT_DIFF}" GIT_DIFF)
+    string(STRIP "${GIT_TAG}" GIT_TAG)
+    string(STRIP "${GIT_BRANCH}" GIT_BRANCH)
+endif()
+
+set(VERSION "const char* GIT_REV=\"${GIT_REV}${GIT_DIFF}\";
+const char* GIT_TAG=\"${GIT_TAG}\";
+const char* GIT_BRANCH=\"${GIT_BRANCH}\";")
+
+if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/version.cpp)
+    file(READ ${CMAKE_CURRENT_SOURCE_DIR}/version.cpp VERSION_)
+else()
+    set(VERSION_ "")
+endif()
+
+if (NOT "${VERSION}" STREQUAL "${VERSION_}")
+    file(WRITE ${CMAKE_CURRENT_SOURCE_DIR}/version.cpp "${VERSION}")
+endif()
\ No newline at end of file
diff --git a/firmware/bootloader.bin b/firmware/bootloader.bin
index a62e024e..cd992d7d 100644
Binary files a/firmware/bootloader.bin and b/firmware/bootloader.bin differ
diff --git a/firmware/firmware.bin b/firmware/firmware.bin
index 9ad3245c..0d0e3cce 100644
Binary files a/firmware/firmware.bin and b/firmware/firmware.bin differ
diff --git a/firmware/html.zip b/firmware/html.zip
index 7e430bca..776a0f20 100644
Binary files a/firmware/html.zip and b/firmware/html.zip differ