کنترل رله با پیامک توسط Sim800L

ارتباط از راه دور، يكي از قابليت هاي کلیدی و کاربردی براي طراحان الكترونيك به حساب مي آيد.حال آنکه يك مهندس طراح با افزودن برد راه انداز SIM800 به دستگاه طراحي شده خود اين قابليت حياتي را در اختيار مي گيرد. برد راه انداز SIM800 در حقيقت يك تلفن همراه هوشمند است كه فرمان هاي مختلف و متنوع دستگاه های طراحي شده را به درستي دريافت و ارسال مي نمايد و از سوي ديگر پاسخ های مربوطه را نيز از دستگاه يا كاربر انساني دريافت كرده و به دستگاههاي طراحي شده تحويل مي دهد.

PinOut ماژول Sim800L

مشخصات ماژول Sim800L

Supply voltage: 3.8V – 4.2V
Recommended supply voltage: 4V
Power consumption:
sleep mode < 2.0mA
idle mode < 7.0mA
GSM transmission (avg): 350 mA
GSM transmission (peek): 2000mA
Module size: 25 x 23cm
Interface: UART (max. 2.8V) and AT commands
SIM card socket: microSIM (bottom side)
Supported frequencies: Quad Band (850 / 950 / 1800 /1900 MHz)
Antenna connector: IPX
Status signaling: LED
Working temperature range: -40 do + 85 ° C

برنامه کنترل رله با پیامک توسط Sim800L

/*
Project : sim900
Version : 
Date    : 11/17/2016
Author  : reza babatabar
Company : 
Comments: 


Chip type               : ATmega16A
Program type            : Application
AVR Core Clock frequency: 16.000000 MHz
Memory model            : Small
External RAM size       : 0
Data Stack size         : 256
*/
#include <mega16a.h>
#include <delay.h>
#include <string.h>

char i=0;
char text_mode[]={"AT+CMGF=1\r"};
char cmgr[]={"AT+CMGR=\r"};
char cmgda[]= {'A','T','+','C','M','G','D','A','=','"','D','E','L',' ','A','L','L','"','\r'};
char at[]={"AT\r"};
char ATE0[]={"ATE0\r"};
char send_sms[]={'A','T','+','C','M','G','S','=','"','+','9','8','9','3','3','-','-','-','-','-','-','-','"','\r'};
char sms_ok[]={"sim800 was turned on"};
char ctrlz=0x1A;
char * pch;
char a;

#define DATA_REGISTER_EMPTY (1<<UDRE)
#define RX_COMPLETE (1<<RXC)
#define FRAMING_ERROR (1<<FE)
#define PARITY_ERROR (1<<UPE)
#define DATA_OVERRUN (1<<DOR)

// USART Receiver buffer
#define RX_BUFFER_SIZE 128
char rx_buffer[RX_BUFFER_SIZE];

#if RX_BUFFER_SIZE <= 256
unsigned char rx_wr_index=0,rx_rd_index=0;
#else
unsigned int rx_wr_index=0,rx_rd_index=0;
#endif

#if RX_BUFFER_SIZE < 256
unsigned char rx_counter=0;
#else
unsigned int rx_counter=0;
#endif

// This flag is set on USART Receiver buffer overflow
bit rx_buffer_overflow;

// USART Receiver interrupt service routine
interrupt [USART_RXC] void usart_rx_isr(void)
{
char status,data;
status=UCSRA;
data=UDR;
if ((status & (FRAMING_ERROR | PARITY_ERROR | DATA_OVERRUN))==0)
   {
   rx_buffer[rx_wr_index++]=data;
#if RX_BUFFER_SIZE == 256
   // special case for receiver buffer size=256
   if (++rx_counter == 0) rx_buffer_overflow=1;
#else
   if (rx_wr_index == RX_BUFFER_SIZE) rx_wr_index=0;
   if (++rx_counter == RX_BUFFER_SIZE)
      {
      rx_counter=0;
      rx_buffer_overflow=1;
      }
#endif
   }
}

#ifndef _DEBUG_TERMINAL_IO_
// Get a character from the USART Receiver buffer
#define _ALTERNATE_GETCHAR_
#pragma used+
char getchar(void)
{
char data;
while (rx_counter==0);
data=rx_buffer[rx_rd_index++];
#if RX_BUFFER_SIZE != 256
if (rx_rd_index == RX_BUFFER_SIZE) rx_rd_index=0;
#endif
#asm("cli")
--rx_counter;
#asm("sei")
return data;
}
#pragma used-
#endif

// USART Transmitter buffer
#define TX_BUFFER_SIZE 24
char tx_buffer[TX_BUFFER_SIZE];

#if TX_BUFFER_SIZE <= 256
unsigned char tx_wr_index=0,tx_rd_index=0;
#else
unsigned int tx_wr_index=0,tx_rd_index=0;
#endif

#if TX_BUFFER_SIZE < 256
unsigned char tx_counter=0;
#else
unsigned int tx_counter=0;
#endif

// USART Transmitter interrupt service routine
interrupt [USART_TXC] void usart_tx_isr(void)
{
if (tx_counter)
   {
   --tx_counter;
   UDR=tx_buffer[tx_rd_index++];
#if TX_BUFFER_SIZE != 256
   if (tx_rd_index == TX_BUFFER_SIZE) tx_rd_index=0;
#endif
   }
}

#ifndef _DEBUG_TERMINAL_IO_
// Write a character to the USART Transmitter buffer
#define _ALTERNATE_PUTCHAR_
#pragma used+
void putchar(char c)
{
while (tx_counter == TX_BUFFER_SIZE);
#asm("cli")
if (tx_counter || ((UCSRA & DATA_REGISTER_EMPTY)==0))
   {
   tx_buffer[tx_wr_index++]=c;
#if TX_BUFFER_SIZE != 256
   if (tx_wr_index == TX_BUFFER_SIZE) tx_wr_index=0;
#endif
   ++tx_counter;
   }
else
   UDR=c;
#asm("sei")
}
#pragma used-
#endif

// Standard Input/Output functions
#include <stdio.h>

void main(void)
{
// Declare your local variables here

// Input/Output Ports initialization
// Port A initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In 
DDRA=(0<<DDA7) | (0<<DDA6) | (0<<DDA5) | (0<<DDA4) | (0<<DDA3) | (0<<DDA2) | (0<<DDA1) | (0<<DDA0);
// State: Bit7=P Bit6=P Bit5=P Bit4=P Bit3=P Bit2=P Bit1=P Bit0=P 
PORTA=(1<<PORTA7) | (1<<PORTA6) | (1<<PORTA5) | (1<<PORTA4) | (1<<PORTA3) | (1<<PORTA2) | (1<<PORTA1) | (1<<PORTA0);

// Port B initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=Out Bit0=Out 
DDRB=(0<<DDB7) | (0<<DDB6) | (0<<DDB5) | (0<<DDB4) | (0<<DDB3) | (0<<DDB2) | (1<<DDB1) | (1<<DDB0);
// State: Bit7=P Bit6=P Bit5=P Bit4=P Bit3=P Bit2=P Bit1=0 Bit0=0 
PORTB=(1<<PORTB7) | (1<<PORTB6) | (1<<PORTB5) | (1<<PORTB4) | (1<<PORTB3) | (1<<PORTB2) | (1<<PORTB1) | (0<<PORTB0);

// Port C initialization
// Function: Bit7=Out Bit6=Out Bit5=Out Bit4=Out Bit3=In Bit2=Out Bit1=Out Bit0=Out 
DDRC=(0<<DDC7) | (0<<DDC6) | (0<<DDC5) | (0<<DDC4) | (0<<DDC3) | (0<<DDC2) | (0<<DDC1) | (0<<DDC0);
// State: Bit7=0 Bit6=0 Bit5=0 Bit4=0 Bit3=P Bit2=0 Bit1=0 Bit0=0 
PORTC=(0<<PORTC7) | (0<<PORTC6) | (0<<PORTC5) | (0<<PORTC4) | (1<<PORTC3) | (0<<PORTC2) | (0<<PORTC1) | (0<<PORTC0);

// Port D initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=Out Bit0=In 
DDRD=(0<<DDD7) | (0<<DDD6) | (0<<DDD5) | (0<<DDD4) | (0<<DDD3) | (0<<DDD2) | (1<<DDD1) | (0<<DDD0);
// State: Bit7=P Bit6=P Bit5=P Bit4=P Bit3=P Bit2=P Bit1=0 Bit0=T 
PORTD=(1<<PORTD7) | (1<<PORTD6) | (1<<PORTD5) | (1<<PORTD4) | (1<<PORTD3) | (1<<PORTD2) | (0<<PORTD1) | (0<<PORTD0);


// USART initialization
// Communication Parameters: 8 Data, 1 Stop, No Parity
// USART Receiver: On
// USART Transmitter: On
// USART Mode: Asynchronous
// USART Baud Rate: 9600
UCSRA=(0<<RXC) | (0<<TXC) | (0<<UDRE) | (0<<FE) | (0<<DOR) | (0<<UPE) | (0<<U2X) | (0<<MPCM);
UCSRB=(1<<RXCIE) | (1<<TXCIE) | (0<<UDRIE) | (0<<RXEN) | (1<<TXEN) | (0<<UCSZ2) | (0<<RXB8) | (0<<TXB8);
UCSRC=(1<<URSEL) | (0<<UMSEL) | (0<<UPM1) | (0<<UPM0) | (0<<USBS) | (1<<UCSZ1) | (1<<UCSZ0) | (0<<UCPOL);
UBRRH=0x00;
UBRRL=0x67;

//analogue comparator power off to reduce power consumption
ACSR=(1<<ACD) | (0<<ACBG) | (0<<ACO) | (0<<ACI) | (0<<ACIE) | (0<<ACIC) | (0<<ACIS1) | (0<<ACIS0);
SFIOR=(0<<ACME);






//wait for initiallizing sim900
delay_ms(10000);

UCSRB=(1<<RXCIE) | (1<<TXCIE) | (0<<UDRIE) | (1<<RXEN) | (1<<TXEN) | (0<<UCSZ2) | (0<<RXB8) | (0<<TXB8);
//checking serial connection
check:
  for ( i=0 ; i<=2 ; i++)
        {
        putchar(at[i]);
        }
        
        delay_ms(3000);
        
        pch=strstr(rx_buffer,"OK");   
        if(pch==0) goto check;
        PORTB.1=0;
        delay_ms(1000);
//echo off
for ( i=0 ; i<=4 ; i++)
        {
        putchar(ATE0[i]);
        }
        delay_ms(2000);
// delete receive buffer
for(i=0;i<=128;i++) {
rx_buffer[i]=0;
}   
// Global enable interrupts         
#asm("sei")
        pch=0;
        rx_wr_index=0;
// text mode sms
for ( i=0 ; i<=9 ; i++)
{
putchar(text_mode[i]);
}
        //checking ok
        while(pch==0) {
        pch=strstr(rx_buffer,"OK");   
        }
// delete receive buffer
for(i=0;i<=128;i++) {
rx_buffer[i]=0;
}
//send turning on sms


for ( i=0 ; i<=23 ; i++)
{
putchar(send_sms[i]);
}
delay_ms(1000);
for ( i=0 ; i<=20 ; i++)
{
putchar(sms_ok[i]);
}
putchar('\r');
putchar(ctrlz);
delay_ms(1000);

// delete receive buffer
for(i=0;i<=128;i++) {
rx_buffer[i]=0;
}    
pch=0;
rx_wr_index=0;
a=0;

//delete all messege   
      for ( i=0 ; i<=18 ; i++)
        {
        putchar(cmgda[i]);
        }
        i=0;
while (1) {

        rx_wr_index=0;
        
        if(a>=56){  //if a>='8'
       //delete all messege   
      for ( i=0 ; i<=18 ; i++)
        {
        putchar(cmgda[i]);
        }
        i=0;
        delay_ms(10000);
        } 
        
        pch=0;
        rx_wr_index=0;
      //waiting for +CMTI: from sim900
      while(pch==0) {
      pch=strstr(rx_buffer,"+CMTI:");   
      } 
      delay_ms(500);     
      
      //show messege request
      for ( i=0 ; i<=7 ; i++)
        {
        putchar(cmgr[i]);
        }
        putchar(pch[12]);
        putchar('\r');
        a=pch[12];
        
        pch=0;
        rx_wr_index=0;
        
        delay_ms(1500);
      
//        //checking ok
//        while(pch==0) {
//        pch=strstr(rx_buffer,"OK");   
//        }
//        pch=0;
                
         //checking on
         pch=strstr(rx_buffer,"#on");
         if(pch != 0){
         PORTB.0=1;
         pch=0;
         rx_wr_index=0;
         }
         //checking off
         pch=strstr(rx_buffer,"#off");
         if(pch != 0) {
         PORTB.0=0;
         pch=0;
         rx_wr_index=0;
         }
         
        
       // delete receive buffer
       for(i=0;i<=128;i++) {
       rx_buffer[i]=0;
       }
       pch=0;
             
          
}
}

شماتیک قسمت sim800

توضیحات برنامه :
ابتدا تنظیمات کد ویزارد رو به صورت زیر انجام میدیم:

سپس در برنامه اصلی هدر string رو اضافه میکنیم به همراه متغیر های مورد نیاز که جلوتر توضیح داده خواهند شد:

#include <mega16a.h>
#include <delay.h>
#include <string.h>

char i=0;
char text_mode[]={"AT+CMGF=1\r"};
char cmgr[]={"AT+CMGR=\r"};
char cmgda[]= {'A','T','+','C','M','G','D','A','=','"','D','E','L',' ','A','L','L','"','\r'};
char at[]={"AT\r"};
char ATE0[]={"ATE0\r"};
char send_sms[]={'A','T','+','C','M','G','S','=','"','+','9','8','9','3','3','-','-','-','-','-','-','-','"','\r'};
char sms_ok[]={"sim800 was turned on"};
char ctrlz=0x1A;
char * pch;
char a;

به کد های تولید شده کدویزارد دست نمیزنیم،به جز خط زیر که مربوط به یوزارته:

UCSRB=(1<<RXCIE) | (1<<TXCIE) | (0<<UDRIE) | (1<<RXEN) | (1<<TXEN) | (0<<UCSZ2) | (0<<RXB8) | (0<<TXB8);

//wait for initiallizing sim900
delay_ms(10000);

UCSRB=(1<<RXCIE) | (1<<TXCIE) | (0<<UDRIE) | (1<<RXEN) | (1<<TXEN) | (0<<UCSZ2) | (0<<RXB8) | (0<<TXB8);

//checking serial connection
check:
  for ( i=0 ; i<=2 ; i++)
        {
        putchar(at[i]);
        }
        
        delay_ms(3000);
        
        pch=strstr(rx_buffer,"OK");   
        if(pch==0) goto check;
        PORTB.1=0;
        delay_ms(1000);

//echo off
for ( i=0 ; i<=4 ; i++)
        {
        putchar(ATE0[i]);
        }
        delay_ms(2000);

// delete receive buffer
for(i=0;i<=128;i++) {
rx_buffer[i]=0;
}

// text mode sms
for ( i=0 ; i<=9 ; i++)
{
putchar(text_mode[i]);
}
        //checking ok
        while(pch==0) {
        pch=strstr(rx_buffer,"OK");   
        }

//send turning on sms


for ( i=0 ; i<=23 ; i++)
{
putchar(send_sms[i]);
}
delay_ms(1000);
for ( i=0 ; i<=20 ; i++)
{
putchar(sms_ok[i]);
}
putchar('\r');
putchar(ctrlz);
delay_ms(1000);

//delete all messege   
      for ( i=0 ; i<=18 ; i++)
        {
        putchar(cmgda[i]);
        }
        i=0;

if(a>=56){  //if a>='8'
       //delete all messege

 //waiting for +CMTI: from sim900
      while(pch==0) {
      pch=strstr(rx_buffer,"+CMTI:");   
      }

+CMTI: "SM",1

//show messege request
      for ( i=0 ; i<=7 ; i++)
        {
        putchar(cmgr[i]);
        }
        putchar(pch[12]);
        putchar('\r');
        a=pch[12];

 //checking on
         pch=strstr(rx_buffer,"#on");
         if(pch != 0){
         PORTB.0=1;
         pch=0;
         rx_wr_index=0;
         }
         //checking off
         pch=strstr(rx_buffer,"#off");
         if(pch != 0) {
         PORTB.0=0;
         pch=0;
         rx_wr_index=0;
         }