The paper researches the WMOi3 communication of two frequency integrated GSM Modem and ATMEL89 series single chip microcomputer,expounds the basic principle of the GSM Modem modular in receiving and sending the short messages and the basic process of how does the single chip microcomputer control the GSM Modem to achieve it.

The application of serial port communication technology based on PC machine with LabVIEW 7.0 language and AVR AT90 series SCM in body temperature examination;