This document provides a list of 27 Arduino projects with an advanced view, including: 1. A walking 3D printer hexapod robot called Geoweaver built by students. 2. A programmable auto filter interface for a Commodore 64 computer that controls the analog filter using an Arduino. 3. A project that controls access to an Arduino Yun board with MySQL, PHP5 and Python to run programs on its embedded Linux system.