This paper describes the principles and design method in software &hardware aspects far -distance controlling intelligent home appliances by using now-existing PSTN or Internet network in bluetooth chip BlueCore03b as core.

This article research how to devalop the function of bluetooth chip nRF401 by i ’ts performance analysis and comparing of it’s index data.

The Application of Bluetooth Technology on CNC and its Realization;

Make Use of Bluetooth Technology in the Automatic Fire Alarm System;

Development of a portable ECG monitor based on bluetooth communication;

Development and design of blue tooth phonetic classroom based on school net;

Design of integrated Sensor based on Blue Tooth Protocol;

Information appliances network based on blue tooth technology;

A Blue-tooth Scheme Scatternet Adapted to Office Block;

The project of network refrigerator fuzzy controller based on blue-tooth technology is given, including the LAN system module and the blue-tooth network communication, at same time, the hardware frame, the temperature control model and the fuzzy defrost model is given in this page.

A 7-bit binary weighted current-steering CMOS DAC applied to transmitter of blue-tooth RF circuit is presented, the sampling frequency is 20 MHz.