Puff  The Dragon fire fighter robot
Puff - The Dragon Enters is a fire fighter robot controlled by Arduino.It consists of 2 geared motors, 1 servo for head scanning, 1 motor with propellor fan, 2 light sensitive Probes.
Gareth writes :
Puff is able to Put out Fires - He Scans his Head to find the Flames - he orientates towards the Flame - and Blows it out.If he fails to blow out the Fire within 2 sweeps then the “PANIC” mode switches in and he backs away to save himself from frying his “Chips”.Puff is an Arduino based tracked autonomus Robotic Vehicle with “Cliff” and “Obstacle” detection.

   Puff : The Dragon fire fighter robot
at letsmakerobots.com