change so no need sudo

.travis.yml

@@ -21,8 +21,8 @@ before_script:
   - export DISPLAY=:1.0
   - wget http://downloads.arduino.cc/arduino-1.6.9-linux64.tar.xz
   - tar xf arduino-1.6.9-linux64.tar.xz
-  - sudo mv arduino-1.6.9 /usr/local/share/arduino
-  - sudo ln -s /usr/local/share/arduino/arduino /usr/local/bin/arduino
+  - mv arduino-1.6.9 $HOME/arduino_ide
+  - export PATH="$HOME/arduino_ide:$PATH"
   - arduino --install-boards arduino:sam:1.6.8
   - arduino --board arduino:sam:arduino_due_x --save-prefs
   - arduino --pref "compiler.warning_level=all" --save-prefs