Rangefinder + Audio server = Door Alarm

Setup

1. Flash firmware to arduino nano wired to XBee (Parallax adapter) and ultrasound rangefinder
2. Run audioserver, which listens to API calls to play audio
3. Run server, which gets packets from XBee and makes API calls to the audioserver

Building and running

gradle run

Adding a new sound

Add mp3 to audioserver. Folders designate groups.