Design Of SMS&LED Communications Based On PIC Microprocessor

With its smaller volume ,lower price and better anti-jamming,singlechip have been widely applied in modern control system operating scene which have been put in collecting data in order to achieve Shop Floor Control.The PIC singlechip which is made by Microchip Co. in the U.S.A, with its RISC architecture,high Price verse performance ration,high Speed,has been working in low voltage,lower Power depletion,higer driving Power,lower price OTP technology and smaller volume,has been represents a new trend in the microprocessors;as a transmission media, SMS(Short Message Service)which is a basic service in the GSM network,with its lower price and high reliability ,has become important media in people's daily life and trade communication;LED's panel which has been applied in publishing the news and advertising in the enterprise is a control technic,a photoelectricity technic,communications technic, digital-image processing technic all rolled into one.Based on the theory about singlechip applied in modern control's communications,the thesis is about designed a communicate system which based on the PIC18F8260 microprocessors and achieved SMS and had been publishing the news on the LED's panel via serial port .The thesis is expatiated the process of system design from two parts:hardware and sofeware.On the one hand of Hardwar:first of all,the thesis introduces the interiror structure of PIC18F8260 and its distinguishing with other singlechip;secondly, having narrated the structure and performance of GSM communicate module-TC35i module and the Hardware performance process of communications interface of GSM;thirdly,having studied the drived principle and dynamic scanned circuit of LED's panel;lastly,having put forward serial interface circuit which the application of system.On the other hand of Software which have accomplished the running of hardware:in design,utilizing Mscomm control to realize the serial communication between computer and cell phone, utilizing AT command to realize the cell phone control and SMS receiving and sending operation, the PDU (Protcol Data Unit)...