Vaadin - Web frontend
Jersey
Jetty - Runtime webserver backend
Java - Runtime
Graphite - Graph visualisation of metrics
Metrics - Sensor value logging
Whisper
Carbon - Graphite Data backend
Apache Webserver - Server backend for graphite
Apache Schiro - Authentication Authorization
Kibana - Log Analysis frontend
Logstash - Logging Framework
Elasticsearch - Logging Framework backend
Pi4j
JAX-RS - Communication backend

--- Platforms ---
Android
Arduino
Raspberry PI

--- Tools ---
Eclipse
Git
Google Sketch Up!
Microsoft Visio
Android Developer Toolkit
Maven
Arduino IDE