The Hudson Lamp project is a quick and dirty way to add a physical dimension to the hudson test suite. It uses Hudson's RSS feed, an arduino, and a sparkfun relay kit to blink a red globe lamp when tests have failed.
There are a number of ways of doing this, I opted to convert the globe ceiling fixture into a wall lamp since it matches hudson's red light graphic. You should have some working knowledge of arduino and basic wiring skill.
Step 2: Program your arduino with the "blink" example, and connect the relay box to Pwr, Gnd, and Ctrl -> pin 13. Connect a lamp or other AC powered device and it should blink.
Step 3: Mount your lamp, attach it to one of the AC cables, and install a red light. Plug the AC cable into your relay box.
Step 4: Check out the git repo, and install the blinkoncommand.pde firmware on your arduino. Move the control pin from 13 to 12 (13 carries TX/RX so it gets some noise if you're communicating on serial all the time). You should be able to open the serial console and send "1" and "0" to control the blinking state.
Step 5: easy_install pyserial and feedparser, and edit hudson_serial.py with your appropriate feed data and serial port location. The easiest way to get your serial is to copy paste from "ls /dev/tty.usb*". You can test the script either by breaking some tests, or by changing the "entries" offset to a previous test run that failed.
Step 6: Schedule hudson_serial.py to run every few minutes. If you're having trouble, try leaving your Arduino serial console open in the background.