Cell phones are great for communication in a virtual manner, but lack expressiveness in personal surroundings. Many people try to give their phones a personal touch by customizing them. Android Meets Arduino is a toolkit to connect Android-driven mobile devices with Arduino microcontrollers via Bluetooth. The toolkit provides easy access to internal phone events which can be further processed on the Arduino open-source prototyping platform. This toolkit seeks to empower people to externalize their phone events to creatively demonstrate them on wearables, living spaces, or other tangibles.