Discussion in "Embedded GSM Development" started by    Alvanbert    Feb 10, 2012.
Fri Feb 24 2012, 07:57 AM
#21
hi guyz... Me too interested in dis project... I want to ask that is it possible to use proteus's Virtual hyperterminal for getting input from my real hardware GSM modem and simulate using it? Thnx
Sun Feb 26 2012, 10:43 PM
#22
Yes u can use proteus Virtual terminal
Mon Feb 27 2012, 02:48 AM
#23
continued in a seperate post : http://www.8051projects.net/forum-t52973-last.html
help me in dat..
Mon Feb 27 2012, 01:12 PM
#24
Hi guys. Am trying to display my messages on the lcd in moving format. Pliz guys help me out. How can this be done.
Tue Feb 28 2012, 04:07 AM
#25
First have u succeeded with SMS Reception and display the same on LCD.
Tue Feb 28 2012, 04:42 AM
#26
Yes kiran. Sorry i didnt tell u that. I can display the sms on lcd. Problem is if msg is a bit long. It gets cut off. So i thout displaying it in a moving format wud solve problem. If nt pliz give me some alternatives. Thanx
Tue Feb 28 2012, 12:04 PM
#27
I am sorry that i might be wrong, but this code worked for me :

for(int i=0; i<40; i++) 
{               
   LCDCmd(0x80);
  LCDWriteString("HELLO:");
  LCDCmd(0xC0);
  LCDWriteString("This is Feroz,Testing LCD scrolling CODE");	// Maximum 40 chars
  LCDCmd(0x1C);
  _delay_ms(200);
}//END For


[ Edited Tue Feb 28 2012, 12:05 PM ]
Wed Feb 29 2012, 06:51 AM
#28
@ firoz3321
u can take it as a reference

Wed Feb 29 2012, 12:42 PM
#29
Hi Guys, Below i have attached the code. it can read from address 1 t0 5 while displaying the message. But it can only display message in the first line of lcd. Can i mek it display same message in all lines i.e if its long.

Thanx Majoka AND Froz3321 for the code for ur help. The messages can scroll one at a time but not one after the other, i thout this was better. If u get the idea pliz help me edit this code accordingly. Thanks

#include <REGX52.H>


#define LCD P1
#define LCD_EN		0x80
#define LCD_RS		0x20
                     
//LCD Commands        

#define LCD_SETMODE		   0x04
#define LCD_SETVISIBLE	   0x08
#define LCD_SETFUNCTION	   0x28
#define LCD_SETDDADDR	   0x80

void delayms(unsigned char);
void delayus(unsigned char);
void lcd_init();
void lcd_reset();
void lcd_cmd (char);
void lcd_data(unsigned char);
void lcd_str (unsigned char *);
void clear(void);
void tx0(unsigned char);
void delay_sms (unsigned int);
void SMSString(char*text) ;
void init();
void read_text(unsigned char *);
unsigned int var,i,n;
unsigned char j,abc;
unsigned char idata msg1[150];
unsigned char rec_no[20];
unsigned char time_date[20];
void gsm_loop(unsigned int);

void serial () interrupt 4
{
msg1[abc]=SBUF;
abc++;
RI=0;
}

void main (void)
{

n=0x35;

gsm_loop(n);
delay_sms(2000);
}

void gsm_loop(unsigned int n)
{
  for(i=0x31;i<=n;i++)
  {
  clear();
  init();
  lcd_init();
  var=i;
  SMSString("AT\r"); // AT commands to initialize gsm modem
  delay_sms(1000);

  SMSString( "ATe0\r"); // turn off echo
  delay_sms(1000);

  SMSString( "AT&W\r"); // save settings
  delay_sms(1000);

  SMSString( "AT+CMGF=1\r"); // select text mode for sms
  delay_sms(1000);

  SMSString( "AT+CNMI=2,1,0,0,0\r"); // notification of new sms
  delay_sms(1000);

  SMSString( "AT+CMGR=");   // AT command to read sms
  tx0(var);
  SMSString("\r");

  IE=0X90;   // Enable serial interrupt
  delay_sms(2000);

  read_text(msg1);		// read sms and store in buffer msg1

  delay_sms(2000);			  
  IE=0X00;       // Disable all interrupt
            
  }
}


void init(void)
{
j=0;
abc=0;
TL1=0XFD; //9600 @ 11.0592
TH1=0xFD;
TMOD=0x20;
SCON=0x50;
TR1=1;
}

void SMSString(unsigned char* text) //function to send SMS using GSM modem
{
while (*text)
{
tx0(*text++);
}
}


void tx0(unsigned char x) //send data to serial port 0
{
EA=0;
SBUF=x;
while(TI==0);
TI=0;
EA=1;
}


void delay_sms (unsigned int count)
{
unsigned int i;                         // Keil v7.5a 
    while(count) {
        i = 115;
                while(i>
0) i--;
        count--;
}
}

void read_text( unsigned char *msg)
{
unsigned char *temp;
temp=msg;
do
msg++;
while(*msg!='#');
msg++;
do
*temp++=*msg++;
while(*msg!='#');       // reaching at end of message
*temp='\0';


lcd_cmd(0x80);
lcd_str(msg1);



         // array having message

}

void lcd_reset()
{
	LCD = 0xFF;
	delay_sms(40);
	LCD = 0x03+LCD_EN;
	LCD = 0x03;
	delay_sms(40);
	LCD = 0x03+LCD_EN;
	LCD = 0x03;
	delay_sms(5);
	LCD = 0x03+LCD_EN;
	LCD = 0x03;
	delay_sms(5);
	LCD = 0x02+LCD_EN;
	LCD = 0x02;
	delay_sms(5);
}


void lcd_init ()
{
	lcd_reset();
	lcd_cmd(LCD_SETFUNCTION);                    // 4-bit mode - 1 line - 5x7 font. 
	lcd_cmd(LCD_SETVISIBLE+0x04);                // Display no cursor - no blink.
	lcd_cmd(LCD_SETMODE+0x02);                   // Automatic Increment - No Display shift.
	lcd_cmd(LCD_SETDDADDR);                      // Address DDRAM with 0 offset 80h.
 }

 void lcd_cmd (char cmd)
{ 
	LCD = ((cmd >
>
 4) & 0x0F)|LCD_EN;
	LCD = ((cmd >
>
 4) & 0x0F);

	LCD = (cmd & 0x0F)|LCD_EN;
	LCD = (cmd & 0x0F);

    delay_sms(1);
}

void lcd_data (unsigned char dat)
{ 
	LCD = (((dat >
>
 4) & 0x0F)|LCD_EN|LCD_RS);
	LCD = (((dat >
>
 4) & 0x0F)|LCD_RS);
	
	LCD = ((dat & 0x0F)|LCD_EN|LCD_RS);
	LCD = ((dat & 0x0F)|LCD_RS);

    delay_sms(1);
}

void clear(void)
{
unsigned char a;
for(a=0;a<100;a++)
msg1[a]=0x00;
}

void lcd_str (unsigned char *str)
{
	while(*str){
		lcd_data(*str++);
	}
}

Thu Mar 01 2012, 08:11 AM
#30
Is above code is working fine at all time..
Try to send msgs continuously of 10msgs and see does it receives all of them.

Get Social

Information

Powered by e107 Forum System
Forum Activity
NexusRevZ Avatar
Posted By NexusRevZ
Tue Jul 29 2014, 09:31 PM
This simple code is test the write and read of EEP...
ExperimenterUK Avatar
Posted By ExperimenterUK
Tue Jul 29 2014, 02:08 PM
Remove all power connections to the circuit at the...
pravin_35 Avatar
Posted By pravin_35
Tue Jul 29 2014, 06:00 AM
Fyiimage with connections
pravin_35 Avatar
Posted By pravin_35
Tue Jul 29 2014, 05:53 AM
another chip is also same problem... i am confused...
pravin_35 Avatar
Posted By pravin_35
Tue Jul 29 2014, 01:41 AM
hi guys i found the following link is very useful...
ExperimenterUK Avatar
Posted By ExperimenterUK
Mon Jul 28 2014, 11:17 PM
Link the tx and rx pins on HC06, everything you se...
ExperimenterUK Avatar
Posted By ExperimenterUK
Mon Jul 28 2014, 11:13 PM
another chip is also same problem... i am confused...
pravin_35 Avatar
Posted By pravin_35
Mon Jul 28 2014, 01:33 PM
I suggest you to try with another chip of same and...
pravin_35 Avatar
Posted By pravin_35
Mon Jul 28 2014, 05:29 AM
I suggest you to try with another chip of same and...
ajay_bhargav Avatar
Posted By ajay_bhargav
Mon Jul 28 2014, 03:23 AM
I suggest you to try with another chip of same and...

Conversation

NexusRevZ
Tue Jul 29 2014, 09:32 PM
Anyone good in Asm lang?
ajay_bhargav
Mon Jul 28 2014, 12:34 AM
@ Anshu Raj sorry we do not take such requests.
Sun Jul 27 2014, 12:23 AM
Anshu Raj
sir plz send the automatic collage alram bells in 2 hrs bells ring. For microcontroller programme plz sir
ajay_bhargav
Thu Jul 24 2014, 01:06 AM
@R.ABHISHEK where? I dont see it. is it in forum?
Wed Jul 23 2014, 05:49 AM
R.ABHISHEK
sir,pls message on microcontroller 8051 assambly language new program
Wed Jul 23 2014, 05:47 AM
R.ABHISHEK
sir,pls message on 8051 microcontroller assambly language program new quastions
ajay_bhargav
Tue Jul 22 2014, 09:18 AM
@Pragya Android application is taken from google play. Only Author has its source with him. Application is only used in this project.
Tue Jul 22 2014, 04:58 AM
Pragya
plz send me 8051 code and android code for android based device controller via Bluetooth .Here in this project I am using Hc-06 Bluetooth module
Thu Jul 10 2014, 09:57 AM
Caleb
plz someone mail me the source code for that project
Thu Jul 10 2014, 09:57 AM
Caleb
http://www.8051projects.net/download-d188-control-your-pc-tv-remote.html

Downloads

Comments

NexusRevZ
Tue Jul 29 2014, 09:29 PM
kritz22
Mon Jul 28 2014, 10:33 AM
Abbasans786
Mon Jul 28 2014, 03:15 AM
Imran.pk
Fri Jul 25 2014, 07:50 PM
PavanKh
Fri Jul 25 2014, 12:56 AM
vinosentinal
Mon Jul 21 2014, 08:28 PM
niks_here
Sun Jul 20 2014, 05:38 PM
athiramsankar
Sun Jul 20 2014, 12:00 PM

Online

Guests: 30, Members: 1 ...
NexusRevZ viewing forum.php

most ever online: 182184
(Members: , Guests: 182184) on 06 Aug 2010: 01:37 AM

Members: 37484
Newest member: NexusRevZ