The systems designer 4-NOKS S.R.L. has developed modules and other ZigBee-based devices that enable manufacturers of heating and refrigeration products to add wireless monitoring and control capabilities. The modules were developed on Ember's first-generation ZigBee-compliant platform, the EM2420 radio, coupled with EmberZNet networking software. The EM250 system-on-a-chip (SoC), an 802.15.4/ZigBee-based semiconductor system, integrates a programmable microprocessor, RF radio, network protocol stack, and memory into a tiny, single chip smaller than a shirt button. Applications for the semiconductor include building and home automation and control.

Ember Corp., 343 Congress St., 5th Fl., Boston, MA 02210; 617-951-0200; 617- 951-0999 (fax);;

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