PT sez, "This week's "how to" article from Engadget shows how to put the Roomba Robot Vacuum in hardware check mode. This is a useful mode for Roomba hackers (and anyone else) to test the functions of the unit as well as see how the unit works, test the 'virtual walls,' clean specific parts and have some fun."
Pressing the L button for the 5th time (you'll hear 5 beeps) will put the Roomba in "bulldozer" mode, in other words it'll just roll forward no matter what, the sensors and bumpers and picking it up will not stop it. Be careful, don't let the Roomba damage you or itself.
(Thanks, PT!)
