Module based on GSM SMS home burglar alarm system components

As HRH GSM Modem GSM engine with high reliability embedded (GSM Cellular Engine) and 51 Single Chip System (MCS51), the standard serial interface and streamlined software interface protocol to the user from the complexity of the GSM communications standard resolution and debugging freed easy to use, 论文由无忧论文网www.51lunwen.org整理提供and public data transmission network with a wide range of communications (GSM network basically covers the whole country), transmission and stability, and reliability. Therefore, this design uses HRH GSM Modem to communicate.