INTRODUCTION
Bluetooth is an open standard for wireless connectivity with supporters mostly from the PC and cell phone industries. Not surprisingly, its primary market is for data and voice transfer between communication devices and PCs. In this way, it is similar in purpose to the IrDA protocol. Bluetooth, however, is a radio frequency (RF) technology utilizing the unlicensed 2.5 GHz industrial, scientific, and medical (ISM) band. Target applications include PC and peripheral networking, hidden computing, and data synchronization such as for address books and calendars. Other applications could include home networking and home appliances of the future such as smart appliances, heating systems, and entertainment devices.