I am currently doing a project on PIC 16f877a with SIM900D GSM MODULE. The purpose of this GSM MODULE is to send an SMS to a number and then wait for response. Based on the response, it would call functions from the PIC 16f877a. I need immediate help in writing the code in C to generate a menu and send it to a mobile number.I am currently using MPLAB IDE 8.80...
Interfacing PIC 16f877a with SIM900D
Sun, 06/05/2012 - 15:17
#1
Interfacing PIC 16f877a with SIM900D
Thu, 10/05/2012 - 11:05
#2
Hi Ahmed,
Good Project, if you could do coding on your own you can learn much more, suggest you to start from your side i will support you to complete your project.
Learn below topics to start coding:
Basic AT commands for SMS.
Serial Communication(UART) through microcontroller.
All the Best !!!
Thu, 10/05/2012 - 18:48
#3
Well, This is the code i have come up with, but the problem is that the AT Commands keep on looping when i run simulation in Proteus...
#include<pic.h>
char gsmat1[3]="AT\r";
char gsmat2[10]="AT+CMGF=1\r";
char gsmat3[22]="AT+CMGS=\"03219396419\"\r";
char gsmat4=26;
void SerialInit()
{
TRISC6=0;
TRISC7=1;
TX9=0;
SPBRG=64;
BRGH=1;
SYNC=0;
SPEN=1;
TXEN=1;
RX9=0;
CREN=1;
}
void delay(unsigned long y)
{
int i=0;
for(i;i<y;i++);
}
void SerialTX(unsigned char c)
{
while(TXIF==0);
TXREG=c;
}
void send(unsigned char *s)
{
int i=0;
while(s[i]!='\0')
{
while(TXIF==0);
TXREG=s[i];
i=i++;
delay(15000);
}
delay(15000);
}
void main (void)
{
SerialInit();
delay(15000);
while(!TXIF);
send(gsmat1);
delay(15000);
TXREG==0;
TXEN==0;
}
Fri, 11/05/2012 - 10:56
#4
Hi Amrith,
Could you tell me the best way to learn CCS coding ..
Fri, 11/05/2012 - 11:10
#5
Hi Ahmed..
Good. Will get back to you with a solution in short time.
Fri, 11/05/2012 - 11:13
#6
Hi Srikanth,
Suggest you to visit Texas Instrument web site, they provide you online training with videos. Also you will find much more stuff on CCS.
Fri, 11/05/2012 - 11:28
#7
Amrit ,
I mean CCS C compiler programming for PIC microcontrollers..
Fri, 11/05/2012 - 12:08
#8
Srikanth,
I thought that you were asking about CCS(Code Composer Studio IDE), Very familiar IDE used on multiple platforms.
For CCS C compiler (Custom Computer Service), you can vist ccsinfo.com, there you can find example progrms for different PIC controllers & tutorials for beginners, if you are a beginner start writing basic code using port pins to blink LED e.t.c
Fri, 11/05/2012 - 12:42
#9
I did small projects with LEDs, and ADC...
But for LCD i got many doubts.. specially using with predefined functions..
Fri, 11/05/2012 - 18:22
#10
Ahmed,
Check the function send();
You may not be clearing the bits after each transmission.
Thu, 24/05/2012 - 05:05
#11
Hi Amrit,
I successfully sent SMS using SIM 300 modem wit PIC microcontroller. Is it possible to send SMS to multiple numbers at a time??
Thu, 24/05/2012 - 11:21
#12
Hi Srikanth,
Well Done !!!
It is not possible to send SMS to multiple numbers at a time. The only way to send SMS to multiple numbers is to provide some time delay after each SMS is sent.
Sat, 26/05/2012 - 23:54
#13
Thnx Amrith ,
Now im tryin to make a voice call...
Tue, 19/06/2012 - 18:52
#14
AT command for making a voic call is ATD********* ;
TRY THIS.