Sensor networks typically consist of tens to hundreds of small, battery-powered, radio-equipped nodes. These nodes usually have a small, embedded microprocessor, running at a few Mhz, with a small quantity of RAM and a larger Flash memory. The Berkeley mica2 Mote is a popu- lar sensor network hardware platform designed at UC Berkeley and sold commercially by Crossbow Corporation. It has a 7 Mhz processor, a radio with ~100 foot range, 4KB of RAM and 512KB flash, runs on AA batter- ies and uses ~15 mA in active power consumption and ~10 µA when asleep. Storage: The limited quantities.
