I created an RGB visual system to show the results of Maven executions.
The system is based on a AVR microcontroller + high power RGB led. It connects to the USB port of the computer running Maven.
The hardware is basically made by the RGB programmable lamp:
While Maven is executing, the lamp is Blue.
When the result is good (successful), the lamp turns Green.
When the result is bad (failure), the lamp turns Red.
The software is made of Scala + Bash scripts and it is open source (GPL v3)