diff --git a/examples/knx-demo-smal-go/.gitignore b/examples/knx-demo-smal-go/.gitignore
deleted file mode 100644
index 89cc49c..0000000
--- a/examples/knx-demo-smal-go/.gitignore
+++ /dev/null
@@ -1,5 +0,0 @@
-.pio
-.vscode/.browse.c_cpp.db*
-.vscode/c_cpp_properties.json
-.vscode/launch.json
-.vscode/ipch
diff --git a/examples/knx-demo-smal-go/knx-demo-ip.knxprod b/examples/knx-demo-smal-go/knx-demo-ip.knxprod
deleted file mode 100644
index 801f3be..0000000
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diff --git a/examples/knx-demo-smal-go/knx-demo-ip.xml b/examples/knx-demo-smal-go/knx-demo-ip.xml
deleted file mode 100644
index 3cdcf1f..0000000
--- a/examples/knx-demo-smal-go/knx-demo-ip.xml
+++ /dev/null
@@ -1,133 +0,0 @@
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\ No newline at end of file
diff --git a/examples/knx-demo-smal-go/knx-demo-rf.knxprod b/examples/knx-demo-smal-go/knx-demo-rf.knxprod
deleted file mode 100644
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diff --git a/examples/knx-demo-smal-go/knx-demo-rf.xml b/examples/knx-demo-smal-go/knx-demo-rf.xml
deleted file mode 100644
index 38993f6..0000000
--- a/examples/knx-demo-smal-go/knx-demo-rf.xml
+++ /dev/null
@@ -1,136 +0,0 @@
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diff --git a/examples/knx-demo-smal-go/knx-demo-tp.knxprod b/examples/knx-demo-smal-go/knx-demo-tp.knxprod
deleted file mode 100644
index ccb1363..0000000
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diff --git a/examples/knx-demo-smal-go/knx-demo-tp.xml b/examples/knx-demo-smal-go/knx-demo-tp.xml
deleted file mode 100644
index d748668..0000000
--- a/examples/knx-demo-smal-go/knx-demo-tp.xml
+++ /dev/null
@@ -1,133 +0,0 @@
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diff --git a/examples/knx-demo-smal-go/knx-demo.ino b/examples/knx-demo-smal-go/knx-demo.ino
index d4476db..52fb386 100644
--- a/examples/knx-demo-smal-go/knx-demo.ino
+++ b/examples/knx-demo-smal-go/knx-demo.ino
@@ -7,6 +7,9 @@
/*****************************************
* changes necessary for SMALL_GROUPOBJECT
* are commented with //**
+ * This project can be used with any
+ * of the knxprod files of the original
+ * knx-demo project.
*****************************************/
// create named references for easy access to group objects
diff --git a/examples/knx-demo-smal-go/platformio-ci.ini b/examples/knx-demo-smal-go/platformio-ci.ini
deleted file mode 100644
index 9dc4835..0000000
--- a/examples/knx-demo-smal-go/platformio-ci.ini
+++ /dev/null
@@ -1,86 +0,0 @@
-;PlatformIO Project Configuration File
-;
-; Build options: build flags, source filter
-; Upload options: custom upload port, speed and extra flags
-; Library options: dependencies, extra library storages
-; Advanced options: extra scripting
-;
-; Please visit documentation for the other options and examples
-; https://docs.platformio.org/page/projectconf.html
-
-;--- SAMD --------------------------------------------------
-[env:adafruit_feather_m0_rf]
-platform = atmelsam
-board = adafruit_feather_m0
-framework = arduino
-lib_deps =
- SPI
- https://github.com/thelsing/FlashStorage.git
- knx
-
-build_flags =
- -DMASK_VERSION=0x27B0
- -Wno-unknown-pragmas
- -DUSE_DATASECURE
- -DSMALL_GROUPOBJECT
-;-----------------------------------------------------------
-
-
-;--- ESP8266 -----------------------------------------------
-[env:nodemcuv2_ip]
-platform = espressif8266
-board = nodemcuv2
-framework = arduino
-lib_deps =
- WifiManager
- knx
-
-build_flags =
- -DMASK_VERSION=0x57B0
- -Wno-unknown-pragmas
- -DUSE_DATASECURE
- -DSMALL_GROUPOBJECT
-
-[env:nodemcuv2_tp]
-platform = espressif8266
-board = nodemcuv2
-framework = arduino
-lib_deps =
- WifiManager@0.15.0
- knx
-
-build_flags =
- -DMASK_VERSION=0x07B0
- -Wno-unknown-pragmas
- -DUSE_DATASECURE
- -DSMALL_GROUPOBJECT
-
-;---------------------------------------------------------
-
-
-;--- ESP32 -----------------------------------------------
-[env:esp32dev_ip]
-platform = espressif32
-board = esp32dev
-framework = arduino
-lib_deps =
- knx
-
-build_flags =
- -DMASK_VERSION=0x57B0
- -Wno-unknown-pragmas
- -DUSE_DATASECURE
- -DSMALL_GROUPOBJECT
-
-[env:esp32dev_tp]
-platform = espressif32
-board = esp32dev
-framework = arduino
-lib_deps =
- knx
-
-build_flags =
- -DMASK_VERSION=0x07B0
- -Wno-unknown-pragmas
- -DUSE_DATASECURE
- -DSMALL_GROUPOBJECT