Add readme

README.md

@@ -0,0 +1,33 @@
+# I237 Hardware Programming
+
+This here is my repository for hardware programming course at
+Estonian IT College that is based around a
+[Arduino Mega 2560](https://www.arduino.cc/en/Main/ArduinoBoardMega2560).
+
+This code us usualy updated once every two weeks when a new excersice is put up
+by Silver Kits.
+
+# How to install
+
+Currently to test this code you have to clone the repository
+
+    git clone https://git.wut.ee/arti/i237.git hardware
+    cd hardware
+
+And export a enviroment variable that points to a Arduino Mega board. The
+real path will depend on the OS and Computer that you are using. For me it is
+usualy `/dev/ttyACM0`.
+
+    export ARDUINO=/dev/ttyACM0
+
+After that you can `make` the project.
+
+    make clean
+    make
+    make install
+
+You can also chekcout previous labs using `git checkout <lab name>`. For example
+
+    git checkout lab02
+
+Don't forget to `make clean` after each checkout!