diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0ee0d1c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,14 @@
+.pio
+
+# old platformio
+.pioenvs
+.piolibdeps
+.clang_complete
+.gcc-flags.json
+
+# virtualenv
+bin/
+include/
+lib/
+local/
+share/
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..71a1420
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,19 @@
+image: python:2.7
+
+stages:
+ - build
+
+before_script:
+  - pip install -U platformio
+  - platformio update
+
+job:
+  stage: build
+  script:
+    - platformio ci --project-conf platformio.ini --board=lolin_d32_pro
+    - cp /home/user/.platformio/packages/framework-arduinoespressif32/tools/sdk/bin/bootloader.bin .pioenvs/lolin_d32_pro/
+    - cp /home/user/.platformio/packages/framework-arduinoespressif32/tools/partitions/boot_app0.bin .pioenvs/lolin_d32_pro/
+  variables: {PLATFORMIO_CI_SRC: "src"}
+  artifacts:
+    paths:
+      - ".pioenvs/lolin_d32_pro/*.bin"
diff --git a/LICENSE.md b/LICENSE.md
new file mode 100644
index 0000000..481aba5
--- /dev/null
+++ b/LICENSE.md
@@ -0,0 +1,20 @@
+Copyright (c) 2019 Hendrik Langer
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/README.md b/README.md
index ac365a7..dba5656 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,33 @@
 # esp32-weatherstation
 
-Wetterstation v2
\ No newline at end of file
+Wetterstation v2 with ESP32 and various sensors
+
+## Hardware
+* ESP32 µC
+
+## Wiring
+tbd
+
+## Build & Install
+
+```bash
+git clone https://dev.xd0.de/hendrik/esp32-weatherstation.git
+cd esp32-weatherstation
+virtualenv .
+source bin/activate
+pip install -U platformio
+platformio run -t upload && platformio device monitor -b 115200
+pio run
+```
+
+## Authors
+
+* **Hendrik** - *Initial work* - [hendrik](https://dev.xd0.de/hendrik)
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE.md](LICENSE.md) file for details
+
+## Acknowledgments
+
+* [PlatformIO](https://platformio.org) - Cross-platform IDE
diff --git a/platformio.ini b/platformio.ini
new file mode 100644
index 0000000..a68e92c
--- /dev/null
+++ b/platformio.ini
@@ -0,0 +1,16 @@
+;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
+
+[env:lolin_d32_pro]
+platform = espressif32
+framework = arduino
+board = lolin_d32_pro
+
+monitor_speed = 115200
diff --git a/src/main.cpp b/src/main.cpp
new file mode 100644
index 0000000..1b1c30f
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,28 @@
+/*
+ * Blink
+ * Turns on an LED on for one second,
+ * then off for one second, repeatedly.
+ */
+
+#include <Arduino.h>
+
+// Set LED_BUILTIN if it is not defined by Arduino framework
+// #define LED_BUILTIN 2
+
+void setup()
+{
+  // initialize LED digital pin as an output.
+  pinMode(LED_BUILTIN, OUTPUT);
+}
+
+void loop()
+{
+  // turn the LED on (HIGH is the voltage level)
+  digitalWrite(LED_BUILTIN, HIGH);
+  // wait for a second
+  delay(1000);
+  // turn the LED off by making the voltage LOW
+  digitalWrite(LED_BUILTIN, LOW);
+   // wait for a second
+  delay(1000);
+}
diff --git a/test/README b/test/README
new file mode 100644
index 0000000..df5066e
--- /dev/null
+++ b/test/README
@@ -0,0 +1,11 @@
+
+This directory is intended for PIO Unit Testing and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PIO Unit Testing:
+- https://docs.platformio.org/page/plus/unit-testing.html