Short Message Receiving and Sending System Based on Single Chip Microcomputer

This program has been adjusted, and its function is to define a button 1, which will automatically send short messages after being pressed. The content of the short message is Ni Hao, and there is an array in the GSM_ATCMGS () function. Storage instructions plus mobile phone number plus 0d. Just change the good asc of your mobile phone to yours. If you can't use it, just call me:

# include & ltreg52.h & gt

# Define uchar unsigned characters

# Define uint unsigned integer

void GSM _ UART()；

unsigned int UART _ delay(unsigned int z)；

void GSM _ init()；

void GSM _ CMGF()；

void GSM _ ATC MGS()；

void TELNUM()；

void GSM _ TEXT()；

void GSM _ test()；

void BUTTON()；

Unsigned integer d;

Unsigned character code ATEnter[]={0x4 1, 0x54, 0x0d }；;

Unsigned character code atcmgcenter [] = {0x41,0x54, 0x2b, 0x43, 0x4d, 0x47, 0x46, 0x3d, 0x3 1, 0x0d }；;

Unsigned character code ATCMGS[]={0x4 1, 0x54, 0x2b, 0x43, 0x4d, 0x47, 0x53, 0x3d }；;

Unsigned char code TEL_NUM[]={0x30, 0x3 1, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39};

Unsigned character code text []={0x4b, 0x4f }；;

Unsigned character code Enter[]= {0x0d }；;

Unsigned character code oneA[]={0x3 1, 0x41};

Unsigned character idatabuf [20];

Int mark;

int buf num = 0；

uchar str 1[]= { " AT " }；

uchar str 2[]= { " ATD " }；

uchar str 3[]= { " ATH " }；

uchar str 5[]= { " AT+CMGS = " }；

sbit bell=p 1^6；

sbit betton 1_ 1=p3^3；

sbit betton 1=p3^4；

void gsm_uart()

{ EA = 1；

ES = 1；

SCON = 0x 50； //UART mode 1:8-bit UART; REN= 1: receiving is allowed.

PCON = 0x 00； //SMOD=0: The baud rate is not doubled.

TMOD = 0x 20； //T 1Mode 2, used for UART baud rate.

th 1 = 0x FD；

TL 1 = 0x FD； //UART baud rate setting: 9600

TI = 0；

RI = 0；

EA = 1；

tr 1 = 1；

}

Unsigned integer uart_delay (unsigned integer z)

{unsigned integers a, b;

for(a = z； a & gt0; Answer-)

{ for(b = 1000； b & gt0; b-)； }

Return z;

}

Use 3 to invalidate ddd () interrupt 4.

{

If(RI) // handles the reception interrupt.

{ buf[buf num]= SBUF； //receive serial data

RI = 0；

buf num++； //Clear the interrupt flag bit

}

}

void GSM_init()

{

uint I；

Uchar code test []= {0x4 1, 0x54, 0x0d }；;

ES = 0；

for(I = 0； I<3; i++)

{

SBUF = test[I]；

while(TI = = 0)；

TI = 0；

}

ES = 1；

}

void GSM_CMGF()

{

Uchar code sel[ 10]= {0x4 1, 0x54, 0x2B, 0x43, 0x4D, 0x47, 0x46, 0x3D, 0x3 1, 0x0d }；; //AT+CMGF= 1 enter

uint I；

for(I = 0； I< 10; i++)

{

SBUF = sel[I]；

while(TI = = 0)；

TI = 0；

}

}

void GSM_ATCMGS()

{ uint I；

Uchar code tel[20]= {0x4 1, 0x54, 0x2B, 0x43, 0x4D, 0x47, 0x53, 0x3D, 0x3 1, 0x33, 0x38, 0x33,

0x36，0x30，0x32，0x33，0x33，0x37，0x39，0x0d }；

for(I = 0； I & lt20; i++)

{

SBUF = tel[I]；

while(TI = = 0)；

TI = 0；

}

}

void GSM_TEXT()

{

Uchar code neirong[ 10]={0x48, 0x69, 0x2 1, 0x6E, 0x69, 0x68, 0x6 1, 0x6F, 0x2E, 0x1a}; //Hi! Ni Hao.

uint I；

ES = 0；

for(I = 0； I< 10; i++)

{

SBUF = nei Rong[I]；

while(TI = = 0)；

TI = 0；

}

ES = 1；

}

Void send ()

{

SBUF = oneA[0]； while(TI = = 0)； TI = 0；

SBUF = oneA[ 1]； while(TI = = 0)； TI = 0；

}

void GSM_test()

{

GSM _ UART()；

UART _ delay(400)；

GSM _ init()；

UART _ delay( 1000)；

ES = 0；

buf num = 0；

if(buf[5]= = ' O ' & amp； & ampbuf[6] =='K ')

{

P0 = 0xfeUART _ delay( 1000)； P0 = 0xff

}

other

{

P0 = 0x00UART _ delay(4000)； P0 = 0xff

}

}

Invalid button ()

{ betton 1 = 1；

betton 1 _ 1 = 0；

if(betton 1==0)

{

GSM _ test()；

UART _ delay( 1200)；

GSM _ CMGF()；

UART _ delay( 1200)；

GSM _ ATC MGS()；

UART _ delay( 1200)；

GSM _ TEXT()；

UART _ delay(800)；

UART _ delay(500)；

betton 1 = 1；

}

}

Master ()

{

BUTTON()；

UART _ delay( 10)；

}