Table of content

Abstract . 2

I .Circuit block and model connection 2

1.1 Main circuit block diagram 2

1.2 The most simple connection model . 3

1.3 The model connection with extended circuit using transmitter and receiver

RF modules or RS232 5

1.4 Model connection for collecting data from remote sensor using internet . 6

1.5 Replaced model for remote region while don’t have internet, but covered by

mobile network 6

II. Algorithms for programming microcontroller in the board (center board and

extension board) 7

2.1 Center Board 7

2.2 Extended circuit for main circuit . 8

III. Protocols for connecting cell phone to PC or microcontroller . 8

3.1 AT command . 9

3.2 FBUS protocol . 10

IV. Details of the links in the system 11

4.1 UART connection 11

4.2 RF connectton . 14

4.3 Internet connection . 19

V. RESULT & DISCUSS 25

5.1 Some image of Data management and processing program 25

5.2 Some image of website for Control and monitor devices 29

5.3 Some images of prototype board . 30

5.4 Some images of debugging software 32

REFERENCE 34

http://t2.stooorage.com/thumbs/860/3231410_aanhdientu1.jp