serial port |

Koneksi Mikrokontroler ATmega8535 Dengan Modul GSM Fastrack M1306B

January 3, 2012 55 Comments

Spesifikasi

Konfigurasi RS232 yang saya gunakan seperti biasanya TX ke RX device dan RX ke TX device, tapi ada tambahan yaitu pin 7 dan 8 disambungkan. USART Baud Rate: 115200. Berikut keterangan pin konektor DB9.

Pin No.	Name	Dir	Notes/Description
1	DCD	IN	Data Carrier Detect. Raised by DCE when modem synchronized.
2	RD	IN	Receive Data (a.k.a RxD, Rx). Arriving data from DCE.
3	TD	OUT	Transmit Data (a.k.a TxD, Tx). Sending data from DTE.
4	DTR	OUT	Data Terminal Ready. Raised by DTE when powered on. In auto-answer mode raised only when RI arrives from DCE.
5	SGND	–	Ground
6	DSR	IN	Data Set Ready. Raised by DCE to indicate ready.
7	RTS	OUT	Request To Send. Raised by DTE when it wishes to send. Expects CTS from DCE.
8	CTS	IN	Clear To Send. Raised by DCE in response to RTS from DTE.
9	RI	IN	Ring Indicator. Set when incoming ring detected – used for auto-answer application. DTE raised DTR to answer.

Berikut adalah contoh kode koneksi menggunakan serial RS232 antara modem dan mikrokontroler atmega8535 dengan tambahan LCD 2×16 menggunakan compiler CodeVisionAVR. Perintah menggunakan AT Command.

Inisialisasi

void sms_init()
{
        printf("ATE0"); //set command tanpa echo
        putchar(0x0D);//ENTER
        while(getchar()!='K'){}; //menunggu OK
        while(getchar()!=0x0A){}; //menunggu new line      
        delay_ms(500); 
}

Kirim SMS ukuran 1 byte

void send_sms(char flash *fmtstr1, char fmtstr2)
{
        printf("AT+CMGF=1"); //set sebagai pesan text        
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};  //menunggu new line
        while(getchar()!=0x0A){};  //menunggu new line
        delay_ms(500);          

        printf("AT+CMGS=\""); //perintah kirim sms tanpa memasukan ke memory pesan
        printf(fmtstr1); //kirim nomor tujuan
        printf("\"");
        putchar(0x0D);//ENTER 
        while(getchar()!=0x20){}; //menunggu spasi
        delay_ms(500);         

        putchar(fmtstr2); //pesan kode ukuran 1 byte
        putchar(0x1A); //kirim Ctrl+z
        while(getchar()!=0x0A){}; //menunggu new line
        while(getchar()!=0x0A){}; //menunggu new line
        while(getchar()!=0x0A){}; //menunggu new line 
        while(getchar()!=0x0A){}; //menunggu new line
        delay_ms(500);  

        printf("AT+CMGD=1"); //hapus memori pesan urutan satu
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){}; //menunggu new line
        while(getchar()!=0x0A){}; //menunggu new line
        delay_ms(500);        

        printf("AT+CMGD=2"); //hapus memori pesan urutan dua
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){}; //menunggu new line
        while(getchar()!=0x0A){}; //menunggu new line
        delay_ms(500);        

        printf("AT+CMGD=3"); //hapus memori pesan urutan tiga
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){}; //menunggu new line
        while(getchar()!=0x0A){}; //menunggu new line
        delay_ms(500);
}

Kirim Text SMS

void send_sms_txt(char flash *fmtstr1, char flash *fmtstr2)
{
        printf("AT+CMGF=1"); //set sebagai pesan text
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};  //menunggu new line
        while(getchar()!=0x0A){};  //menunggu new line
        delay_ms(500);            

        printf("AT+CMGS=\""); //perintah kirim sms tanpa memasukan ke memory pesan
        printf(fmtstr1); //kirim nomor tujuan
        printf("\"");
        putchar(0x0D);//ENTER 
        while(getchar()!=0x20){}; //menunggu spasi
        delay_ms(500);         

        printf(fmtstr2); //pesan text
        putchar(0x1A); //kirim Ctrl+z
        while(getchar()!=0x0A){}; //menunggu new line
        while(getchar()!=0x0A){}; //menunggu new line
        while(getchar()!=0x0A){}; //menunggu new line 
        while(getchar()!=0x0A){}; //menunggu new line
        delay_ms(500);  

        printf("AT+CMGD=1"); //hapus memori pesan urutan satu
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){}; //menunggu new line
        while(getchar()!=0x0A){}; //menunggu new line
        delay_ms(500);        

        printf("AT+CMGD=2"); //hapus memori pesan urutan dua
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){}; //menunggu new line
        while(getchar()!=0x0A){}; //menunggu new line
        delay_ms(500);        

        printf("AT+CMGD=3"); //hapus memori pesan urutan tiga
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){}; //menunggu new line
        while(getchar()!=0x0A){}; //menunggu new line
        delay_ms(500);
}

Menerima pesan ukuran 1 byte

char receive_sms()
{       
char data;      
        printf("AT+CMGR=1"); //cek memori pesan datang urutan 1
        putchar(0x0D);  //ENTER     
        while(getchar()!=0x0A){}; //menunggu new line
        while(getchar()!=0x0A){}; //menunggu new line
        data=getchar();     //menerima data
        while(getchar()!='K'){};  //menunggu OK
        while(getchar()!=0x0A){}; //menunggu new line

        delay_ms(500);

        printf("AT+CMGD=1"); //hapus memori pesan urutan satu
        putchar(0x0D);//ENTER
        while(getchar()!='K'){};//menunggu OK
        while(getchar()!=0x0A){};//menunggu new line
        delay_ms(500);

        printf("AT+CMGD=2"); //hapus memori pesan urutan dua
        putchar(0x0D);//ENTER
        while(getchar()!='K'){};//menunggu OK
        while(getchar()!=0x0A){};//menunggu new line
        delay_ms(500);

        printf("AT+CMGD=3"); //hapus memori pesan urutan tiga
        putchar(0x0D);//ENTER
        while(getchar()!='K'){};//menunggu OK
        while(getchar()!=0x0A){};//menunggu new line
        delay_ms(500);           

        return(data);//mengembalikan nilai data
}

Mengecek sms masuk

void cek_sms()
{
        while(getchar()!=','){}; //menunggu tanda ',' koma 
        while(getchar()!=0x0A){};//menunggu new line
}

________________________________________________________
Berikut kode lengkap yang saya gunakan untuk mendeteksi ketinggian air di alat pengukur curah hujan berbasis sms.

/*****************************************************
Chip type               : ATmega8535
Program type            : Application
AVR Core Clock frequency: 11.059200 MHz
Memory model            : Small
External RAM size       : 0
Data Stack size         : 128
*****************************************************/

#include
#include
#include 

// Alphanumeric LCD Module functions
#asm
   .equ __lcd_port=0x15 ;PORTC
#endasm
#include 

#ifndef RXB8
#define RXB8 1
#endif

#ifndef TXB8
#define TXB8 0
#endif

#ifndef UPE
#define UPE 2
#endif

#ifndef DOR
#define DOR 3
#endif

#ifndef FE
#define FE 4
#endif

#ifndef UDRE
#define UDRE 5
#endif

#ifndef RXC
#define RXC 7
#endif

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

// USART Receiver buffer
#define RX_BUFFER_SIZE 8
char rx_buffer[RX_BUFFER_SIZE];

#if RX_BUFFER_SIZE<256
unsigned char rx_wr_index,rx_rd_index,rx_counter;
#else
unsigned int rx_wr_index,rx_rd_index,rx_counter;
#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_wr_index == RX_BUFFER_SIZE) rx_wr_index=0;
   if (++rx_counter == RX_BUFFER_SIZE)
      {
      rx_counter=0;
      rx_buffer_overflow=1;
      };
   };
}

#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_rd_index == RX_BUFFER_SIZE) rx_rd_index=0;
#asm("cli")
--rx_counter;
#asm("sei")
return data;
}
#pragma used-
#endif

// USART Transmitter buffer
#define TX_BUFFER_SIZE 8
char tx_buffer[TX_BUFFER_SIZE];

#if TX_BUFFER_SIZE<256
unsigned char tx_wr_index,tx_rd_index,tx_counter;
#else
unsigned int tx_wr_index,tx_rd_index,tx_counter;
#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_rd_index == TX_BUFFER_SIZE) tx_rd_index=0;
   };
}

#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_wr_index == TX_BUFFER_SIZE) tx_wr_index=0;
   ++tx_counter;
   }
else
   UDR=c;
#asm("sei")
}
#pragma used-
#endif

// Standard Input/Output functions
#include 

// Declare your global variables here
void sms_init()
{
        printf("ATE0");
        putchar(0x0D);//ENTER
        while(getchar()!='K'){};
        while(getchar()!=0x0A){};
        delay_ms(500);
}

void send_sms(char flash *fmtstr1, char fmtstr2)
{
        printf("AT+CMGF=1");
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        delay_ms(500);           

        printf("AT+CMGS=\"");
        printf(fmtstr1);
        printf("\"");
        putchar(0x0D);//ENTER
        while(getchar()!=0x20){};
        delay_ms(500);          

        putchar(fmtstr2);
        putchar(0x1A);
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        delay_ms(500);   

        printf("AT+CMGD=1");
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        delay_ms(500);         

        printf("AT+CMGD=2");
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        delay_ms(500);         

        printf("AT+CMGD=3");
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        delay_ms(500);
}      

void send_sms_txt(char flash *fmtstr1, char flash *fmtstr2)
{
        printf("AT+CMGF=1");
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        delay_ms(500);           

        printf("AT+CMGS=\"");
        printf(fmtstr1);
        printf("\"");
        putchar(0x0D);//ENTER
        while(getchar()!=0x20){};
        delay_ms(500);          

        printf(fmtstr2);
        putchar(0x1A);
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        delay_ms(500);   

        printf("AT+CMGD=1");
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        delay_ms(500);         

        printf("AT+CMGD=2");
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        delay_ms(500);         

        printf("AT+CMGD=3");
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        delay_ms(500);
}      

char receive_sms()
{
char data;
        printf("AT+CMGR=1");
        putchar(0x0D);
        while(getchar()!=0x0A){};
        while(getchar()!=0x0A){};
        data=getchar();
        while(getchar()!='K'){};
        while(getchar()!=0x0A){}; 

        delay_ms(500);

        printf("AT+CMGD=1");
        putchar(0x0D);//ENTER
        while(getchar()!='K'){};
        while(getchar()!=0x0A){};
        delay_ms(500);

        printf("AT+CMGD=2");
        putchar(0x0D);//ENTER
        while(getchar()!='K'){};
        while(getchar()!=0x0A){};
        delay_ms(500);

        printf("AT+CMGD=3");
        putchar(0x0D);//ENTER
        while(getchar()!='K'){};
        while(getchar()!=0x0A){};
        delay_ms(500);            

        return(data);
}     

void cek_sms()
{
        while(getchar()!=','){};
        while(getchar()!=0x0A){};
}

// Declare your global variables here

#define PULSE PORTA.1
#define ECHO PINA.1
#define ARAH DDRA.1

unsigned char kata[16];

unsigned int ultra()
{
unsigned int count=0,jarak=0;
        ARAH = 1;
        PULSE = 1;
        delay_us(5);
        PULSE = 0;
        ARAH = 0;
        PULSE = 1;
        while(ECHO == 0){};
        while(ECHO == 1){count++;};
        jarak = (float)count/2.5;
        delay_ms(10);
        return(jarak);
}

int    sensor_in_t0, //nilai sensor sebelum
       sensor_in_t1, //nilai sensor sekarang
       del_sensor;   //delta sensor

void baca_sensor_init()
{
        sensor_in_t0 = (int)ultra(); //setting awal
        delay_ms(100);
}

unsigned char baca_curah_hujan()
{
        sensor_in_t1 = (int)ultra();              //baca sensor sekarang
        del_sensor = sensor_in_t0 - sensor_in_t1; //hitung selisih sensor sebelum dikurangi sensor sekarang

        if(del_sensor 300)       //300 mm/menit
        {
                return((unsigned char)3);
        }else if(del_sensor>200) //200 mm/menit
        {
                return((unsigned char)2);
        }else if(del_sensor>100) //100 mm/menit
        {
                return((unsigned char)1);
        }else                   //dibawah 100 mm/menit
        {
                return((unsigned char)0);
        }
}

char kirim_pesan(unsigned char kode)
{
        switch(kode)
        {
                case 0: lcd_gotoxy(0,1);
                        lcd_putsf("AMAN");
                        return('0');
                        break;
                case 1: lcd_gotoxy(0,1);
                        lcd_putsf("SIAGA I");
                        return('1');
                        break;//jika kode 1 kirim pesan siaga I
                case 2: lcd_gotoxy(0,1);
                        lcd_putsf("SIAGA II");
                        return('2');
                        break;//jika kode 1 kirim pesan siaga II
                case 3: lcd_gotoxy(0,1);
                        lcd_putsf("SIAGA III");
                        return('3');
                        break;//jika kode 1 kirim pesan siaga III
        }
}

void delta_waktu(unsigned int del)
{
        delay_ms(del*1000);
}

void main(void)
{
// Declare your local variables here
char data_dev1, data_dev2, data_hasil;
// Input/Output Ports initialization
// Port A initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTA=0x00;
DDRA=0x00;

// Port B initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTB=0x00;
DDRB=0x00;

// Port C initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTC=0x00;
DDRC=0x00;

// Port D initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTD=0x00;
DDRD=0x00;

// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=FFh
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;

// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer1 Stopped
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;

// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer2 Stopped
// Mode: Normal top=FFh
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;

// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// INT2: Off
MCUCR=0x00;
MCUCSR=0x00;

// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;

// USART initialization
// Communication Parameters: 8 Data, 1 Stop, No Parity
// USART Receiver: On
// USART Transmitter: On
// USART Mode: Asynchronous
// USART Baud Rate: 115200
UCSRA=0x00;
UCSRB=0xD8;
UCSRC=0x86;
UBRRH=0x00;
UBRRL=0x05;

// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;

// LCD module initialization
lcd_init(16);

// Global enable interrupts
#asm("sei")

lcd_clear();
delay_ms(1000);
lcd_gotoxy(0,0);
lcd_putsf("inisialisasi program"); 

baca_sensor_init();
sms_init();    

while (1)
      {
      // Place your code here
        lcd_clear();
        lcd_gotoxy(0,0);
        lcd_putsf("siap menerima kode");   

        cek_sms();    

        lcd_clear();
        lcd_gotoxy(0,0);
        lcd_putsf("ada sms, siap cek kode");   

        data_dev1 = receive_sms() - 48; //normalisasi bilangan, ascii to desimal
        data_dev2 = kirim_pesan(baca_curah_hujan()) - 48; //normalisasi bilangan, ascii to desimal
        data_hasil = data_dev1 + data_dev2;

        switch(data_hasil)
        {
                case 0: lcd_clear();
                        lcd_gotoxy(0,0);
                        lcd_putsf("AMAN");
                        delay_ms(2000);
                        break;
                case 1: lcd_clear();
                        lcd_gotoxy(0,0);
                        lcd_putsf("AMAN");
                        delay_ms(2000);
                        break;
                case 2: lcd_clear();
                        lcd_gotoxy(0,0);
                        lcd_putsf("AMAN");
                        delay_ms(2000);
                        break;
                case 3: send_sms("082121962044",'1');
                        send_sms_txt("082121962033","BADAN PENANGGULANGAN BANJIR: WARNING I"); //OPERATOR
                        lcd_clear();
                        lcd_gotoxy(0,0);
                        lcd_putsf("WARNING I");
                        delay_ms(2000);
                        break;
                case 4: send_sms("082121962044",'2');
                        send_sms_txt("082121962033","BADAN PENANGGULANGAN BANJIR: WARNING II"); //OPERATOR
                        lcd_clear();
                        lcd_gotoxy(0,0);
                        lcd_putsf("WARNING II");
                        delay_ms(2000);
                        break;
                case 5: send_sms("082121962044",'2');
                        send_sms_txt("082121962033","BADAN PENANGGULANGAN BANJIR: WARNING II"); //OPERATOR
                        lcd_clear();
                        lcd_gotoxy(0,0);
                        lcd_putsf("WARNING II");
                        delay_ms(2000);
                        break;
                case 6: send_sms("082121962044",'3');
                        send_sms_txt("082121962033","BADAN PENANGGULANGAN BANJIR: WARNING III"); //OPERATOR
                        lcd_clear();
                        lcd_gotoxy(0,0);
                        lcd_putsf("WARNING II");
                        delay_ms(2000);
                        break;
        }
      };
}

___________________________________________________

UPDATE

Karena versi yg atas masih ada kelemahannya, yaitu pada fungsi send sms nya. Ketika modem memberi feedback error, program mikrokontroler akan terjebak pada looping. Maka, berikut versi perbaikannya dari fungsi send sms yang akan mencoba mengirim sms kembali jika modem memberikan feedback error pada pengiriman sebelumnya.

void send_sms(char flash *fmtstr1, char fmtstr2)
{   
char dat;
awal_sms:           

delay_ms(500);                  
lcd_clear();
lcd_gotoxy(0,0);
lcd_putsf("Kirim SMS"); 

        printf("AT+CMGF=1");         
        putchar(0x0D);//ENTER   
        while(getchar()!=0x0A){};   
        while(getchar()!=0x0A){};  
        delay_ms(500);           

        printf("AT+CMGS=\"");  
        printf(fmtstr1);  
        printf("\"");
        putchar(0x0D);//ENTER  
        while(getchar()!=0x20){}; //spasi
        delay_ms(500);         

        putchar(fmtstr2);
        putchar(0x1A);          

        while((dat=getchar())!=0x0A)
        {
                if (dat=='O')
                {                   
                        if(getchar()=='R')
                        {              
                                getchar();    

                                delay_ms(500);                  
                                lcd_clear();
                                lcd_gotoxy(0,0);
                                lcd_putsf("Gagal kirim SMS"); 

                                goto awal_sms;
                        }
                }
        };
        while((dat=getchar())!=0x0A)
        {
                if (dat=='O')
                {                   
                        if(getchar()=='R')
                        {              
                                getchar();    

                                delay_ms(500);                  
                                lcd_clear();
                                lcd_gotoxy(0,0);
                                lcd_putsf("Gagal kirim SMS"); 

                                goto awal_sms;
                        }
                }
        };  
        while((dat=getchar())!=0x0A)
        {
                if (dat=='O')
                {                   
                        if(getchar()=='R')
                        {              
                                getchar();    

                                delay_ms(500);                  
                                lcd_clear();
                                lcd_gotoxy(0,0);
                                lcd_putsf("Gagal kirim SMS"); 

                                goto awal_sms;
                        }
                }
        };  
        while((dat=getchar())!=0x0A)
        {
                if (dat=='O')
                {                   
                        if(getchar()=='R')
                        {              
                                getchar();    

                                delay_ms(500);                  
                                lcd_clear();
                                lcd_gotoxy(0,0);
                                lcd_putsf("Gagal kirim SMS"); 

                                goto awal_sms;
                        }
                }
        };       
        delay_ms(500);   

        printf("AT+CMGD=1");  
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};   
        while(getchar()!=0x0A){};  
        delay_ms(500);         

        printf("AT+CMGD=2");  
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};   
        while(getchar()!=0x0A){};
        delay_ms(500);         

        printf("AT+CMGD=3");  
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};   
        while(getchar()!=0x0A){};
        delay_ms(500);
}
void send_sms_txt(char flash *fmtstr1, char flash *fmtstr2)
{
char dat;
awal_sms_txt:    

        delay_ms(500);                  
        lcd_clear();
        lcd_gotoxy(0,0);
        lcd_putsf("Kirim SMS ke-2"); 

        printf("AT+CMGF=1");         
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};   
        while(getchar()!=0x0A){};  
        delay_ms(500);           

        printf("AT+CMGS=\"");  
        printf(fmtstr1);  
        printf("\"");
        putchar(0x0D);//ENTER  
        while(getchar()!=0x20){};  
        delay_ms(500);          

        printf(fmtstr2);
        putchar(0x1A);  

        while((dat=getchar())!=0x0A)
        {
                if (dat=='O')
                {                   
                        if(getchar()=='R')
                        {              
                                getchar();    

                                delay_ms(500);                  
                                lcd_clear();
                                lcd_gotoxy(0,0);
                                lcd_putsf("Gagal kirim SMS ke-2"); 

                                goto awal_sms_txt;
                        }
                }
        };  
        while((dat=getchar())!=0x0A)
        {
                if (dat=='O')
                {                   
                        if(getchar()=='R')
                        {              
                                getchar();    

                                delay_ms(500);                  
                                lcd_clear();
                                lcd_gotoxy(0,0);
                                lcd_putsf("Gagal kirim SMS ke-2"); 

                                goto awal_sms_txt;
                        }
                }
        };
        while((dat=getchar())!=0x0A)
        {
                if (dat=='O')
                {                   
                        if(getchar()=='R')
                        {              
                                getchar();    

                                delay_ms(500);                  
                                lcd_clear();
                                lcd_gotoxy(0,0);
                                lcd_putsf("Gagal kirim SMS ke-2"); 

                                goto awal_sms_txt;
                        }
                }
        };
        while((dat=getchar())!=0x0A)
        {
                if (dat=='O')
                {                   
                        if(getchar()=='R')
                        {              
                                getchar();    

                                delay_ms(500);                  
                                lcd_clear();
                                lcd_gotoxy(0,0);
                                lcd_putsf("Gagal kirim SMS ke-2"); 

                                goto awal_sms_txt;
                        }
                }
        };       
        delay_ms(500);   

        printf("AT+CMGD=1");  
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};   
        while(getchar()!=0x0A){};  
        delay_ms(500);         

        printf("AT+CMGD=2");  
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};   
        while(getchar()!=0x0A){};
        delay_ms(500);         

        printf("AT+CMGD=3");  
        putchar(0x0D);//ENTER
        while(getchar()!=0x0A){};   
        while(getchar()!=0x0A){};
        delay_ms(500);
}

____________________________________
Daftar Pustaka

Click to access P_Fastrack_Modem_M1306B_User_Guide.pdf

http://www.developershome.com/sms/sendSmsByAtCommands.asp
http://www.bbdsoft.com/ascii.html

Click to access gsm822w.pdf

http://www.vedran.jukic.net/rs232.html

Filed under electrical engineering Tagged with AT Command, CodeVisionAVR, embedded system, Fastrack M1306B, GSM, interfacing perangkat, microcontroller, RS232, serial port

Aplikasi Serial Terminal Berbasis Java Menggunakan NetBeans IDE (Menggunakan SimpleSerialNative.dll)

September 15, 2011 22 Comments

_________________________________________

Buatlah New Project.

Pilih Java Aplication lalu Next. Setelah itu isilah Project Name dengan nama java serial dan uncheck Create Main Class lalu Finish.

Setelah itu, buatlah form baru pada Source Packages dengan cara klik kanan pada <default package> lalu pilih New, lalu JFrame Form…

Lalu isilah Class Name dengan serialport lalu Finish.

Lalu copy file SimpleSerial.java dan SimpleSerialNative.java ke folder src pada folder project yang dikerjakan dan copy juga file SimpleSerialNative.dll ke directory folder project sehingga tampak pada window Projects seperti gambar di bawah ini.

Setelah itu buatlah form seperti di bawah ini.

Control	Property	Value
JFrame	Title	Java Serial Port
Status_label	Text	Status:
Receive_textarea	lineWrap	True
Receive_textarea	wrapStyleWord	True

Lalu ketiklah kode di bawah ini. kode di bawah adalah kode untuk form GUI

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * java_terminal.java
 *
 * Created on Aug 21, 2011, 11:12:42 PM
 */
/**
 *
 * @author Administrator
 */
import javax.swing.*;

public class java_terminal extends javax.swing.JFrame {

    /** Creates new form java_terminal */
    public java_terminal() {
        initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    //
    private void initComponents() {

        textField1 = new java.awt.TextField();
        connect_button = new javax.swing.JButton();
        disconnect_button = new javax.swing.JButton();
        com_label = new javax.swing.JLabel();
        com_combobox = new javax.swing.JComboBox();
        send_textarea = new javax.swing.JTextField();
        kirim_button = new javax.swing.JButton();
        baudrate_combobox = new javax.swing.JComboBox();
        baudrate_label = new javax.swing.JLabel();
        format_data = new javax.swing.JLabel();
        status_label = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        receive_textarea = new javax.swing.JTextArea();
        clear_button = new javax.swing.JButton();

        textField1.setText("textField1");

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("WangReady Java Serial Terminal");
        setResizable(false);
        addWindowListener(new java.awt.event.WindowAdapter() {
            public void windowOpened(java.awt.event.WindowEvent evt) {
                formWindowOpened(evt);
            }
        });

        connect_button.setText("Connect");
        connect_button.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                connect_buttonActionPerformed(evt);
            }
        });

        disconnect_button.setText("Disconnect");
        disconnect_button.setEnabled(false);
        disconnect_button.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                disconnect_buttonActionPerformed(evt);
            }
        });

        com_label.setText("COM yg tersedia");

        kirim_button.setText("Kirim");
        kirim_button.setEnabled(false);
        kirim_button.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                kirim_buttonActionPerformed(evt);
            }
        });

        baudrate_combobox.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "110", "300", "600", "1200", "2400", "4800", "9600", "14400", "19200", "38400", "56000", "57600", "115200" }));

        baudrate_label.setText("Baudrate");

        format_data.setText("Format data 8N1");

        status_label.setText("Status:");
        status_label.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        receive_textarea.setColumns(20);
        receive_textarea.setEditable(false);
        receive_textarea.setLineWrap(true);
        receive_textarea.setRows(5);
        receive_textarea.setWrapStyleWord(true);
        receive_textarea.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
        jScrollPane1.setViewportView(receive_textarea);

        clear_button.setText("Bersihkan layar data terima");
        clear_button.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                clear_buttonActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(status_label, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 380, Short.MAX_VALUE)
                    .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(baudrate_combobox, javax.swing.GroupLayout.Alignment.TRAILING, 0, 87, Short.MAX_VALUE)
                            .addComponent(com_combobox, javax.swing.GroupLayout.Alignment.TRAILING, 0, 87, Short.MAX_VALUE)
                            .addComponent(com_label)
                            .addComponent(baudrate_label, javax.swing.GroupLayout.PREFERRED_SIZE, 76, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(format_data)
                            .addComponent(connect_button, javax.swing.GroupLayout.DEFAULT_SIZE, 87, Short.MAX_VALUE)
                            .addComponent(disconnect_button, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                            .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 283, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(clear_button)))
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(send_textarea, javax.swing.GroupLayout.DEFAULT_SIZE, 317, Short.MAX_VALUE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(kirim_button)))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(com_label)
                        .addGap(3, 3, 3)
                        .addComponent(com_combobox, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(baudrate_label)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(baudrate_combobox, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(format_data)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(connect_button))
                    .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 136, Short.MAX_VALUE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(disconnect_button)
                    .addComponent(clear_button))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(status_label, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(12, 12, 12)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(send_textarea, javax.swing.GroupLayout.DEFAULT_SIZE, 31, Short.MAX_VALUE)
                    .addComponent(kirim_button))
                .addContainerGap())
        );

        pack();
    }//
    private SimpleSerialNative ss;
    private void connect_buttonActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
        String com_string = com_combobox.getSelectedItem().toString();
        int com_port = Integer.parseInt(com_string.substring(3));
        int baudrate = Integer.parseInt(baudrate_combobox.getSelectedItem().toString());
        try{
            ss = new SimpleSerialNative(com_port,baudrate, 8, SimpleSerialNative.ONESTOPBIT, SimpleSerialNative.NOPARITY);
            if(!ss.isValid()){
                status_label.setText("Status: PORT"+com_port +" tidak bisa digunakan. Coba PORT yang lain");
            }else{
                status_label.setText("Status: Connected... COM"+Integer.toString(com_port)+" Baudrate:"+Integer.toString(baudrate)+"bpsCatatan: Disconect apabila ingin close");
                disconnect_button.setEnabled(true);
                kirim_button.setEnabled(true);
                connect_button.setEnabled(false);
                setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);

                new Thread(new ReadThread()).start();
            }
        }
        catch(Exception e){
            status_label.setText("Status: PORT tidak bisa digunakan. Coba PORT yang lain");
        }
    }

 /**
 * Buffer to hold the reading
 */
private byte[] readBuffer = new byte[400];

private void readSerial() {
    try {
        int availableBytes = ss.available();
        if (availableBytes > 0) {
            // Print it out
           receive_textarea.append(ss.readString());
        }
    } catch (Exception e) {
    }
}

private  class ReadThread implements Runnable {
        @Override
    public void run() {
        while(true) {
            readSerial();
        }
        }
    }

    private void disconnect_buttonActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
         ss.close();
         status_label.setText("Status: Disconnected");
         disconnect_button.setEnabled(false);
         kirim_button.setEnabled(false);
         connect_button.setEnabled(true);
         setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    private void kirim_buttonActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
        ss.writeString(send_textarea.getText());
        send_textarea.setText(null);
    }

    private void clear_buttonActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
        receive_textarea.setText(null);
    }

    private Object makeObj(final String item)  {
     return new Object() {@Override
 public String toString() { return item; } };
   }

    private void formWindowOpened(java.awt.event.WindowEvent evt) {
        // TODO add your handling code here:
        for(int ii = 0;ii < 50;ii++){
            try{
                ss = new SimpleSerialNative(ii+1);
                if(ss.available()==0){
                    com_combobox.addItem(makeObj("COM" + Integer.toString(ii + 1)));
                }
                ss.close();
            }
            catch(Exception e){

            }
        }
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                new java_terminal().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify
    private javax.swing.JComboBox baudrate_combobox;
    private javax.swing.JLabel baudrate_label;
    private javax.swing.JButton clear_button;
    private javax.swing.JComboBox com_combobox;
    private javax.swing.JLabel com_label;
    private javax.swing.JButton connect_button;
    private javax.swing.JButton disconnect_button;
    private javax.swing.JLabel format_data;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JButton kirim_button;
    private javax.swing.JTextArea receive_textarea;
    private javax.swing.JTextField send_textarea;
    private javax.swing.JLabel status_label;
    private java.awt.TextField textField1;
    // End of variables declaration
}

Setelah semuanya selesai, Run Project atau F6. Jika berhasil, lalu Build Project atau F11, maka akan muncul forlde dist pada folder project yang berisi file .jar yang siap dijalankan. Akan tetapi file .jar tadi memerlukan file SimpleSerialNative.dll, maka copy file tersebut ke folder dist.

Berikut file yang berisi SimpleSerial.zip yang digunakan sebagai library.

Berikut file project.

~~http://www.mediafire.com/file/vtmd6kv1tb8sa2m/wangready-java%20terminal.rar~~

update REVISI

http://www.mediafire.com/?fclogl61qpldqq8

_______________________________

Daftar Pustaka

alumni.media.mit.edu/~benres/simpleserial/

Filed under electrical engineering Tagged with Design Software, interfacing, interfacing perangkat, java, komunikasi serial, NetBeans, RS232, serial port, Software, terminal

Virtual Serial Ports Emulator dari eterlogic.com

July 10, 2011 2 Comments

Virtual Serial Ports Emulator
The emulation solution

Version information: 0.938.4.846

Added Spy device
TcpServer and TcpClient devices now supports COM port read-only and COM port write-only modes
Fixed bug with localization of the device properties dialog
Added ability to reorganize devices (move up and down) when emulation is stopped
Fixed bug with COM port speed selection from Combo box (added missed values)
Reinitialization of failed devices (see Preferences => Advanced tab) disabled by default
Fixed French translation
File data stream: added output ability, now it can be used to write output to file
Updated documentation

Description

VSPE is intended to help software engineers and developers to create/debug/test applications that use serial ports. It is able to create various virtual devices to transmit/receive data. Unlike regular serial ports, virtual devices have special capabilities: for example, the same device can be opened more than once by different applications, that can be useful in many cases. With VSPE you are able to share physical serial port data for several applications, expose serial port to local network (via TCP protocol), create virtual serial port device pairs and so on.

Key features

Virtual device: connector
Virtual device: data splitter
Virtual device: pair
Mapper device
User mode device: TcpServer
User mode device: TcpClient
User mode device: Serial Redirector
User mode device: UDP Manager
User mode device: Bridge
Python scripting system
x86 and x86_64 processor architecture support
VSPE API (C/C++ header and static library) for native language developers
VSPE API Python bindings for Python developers
Embedded HTTP server
Data monitoring

Requirements

Operating system: Windows 2000, XP, Vista (32/64), Windows 7

FREE license for 32 bit platform (x86)

Virtual Serial Ports Emulator is a FREEWARE program on 32 bit platform and can be used absolutely free for any purpose.

FOR DEVELOPERS: You can also use FREE VSPE API key located in the distribution package to get access to internal VSPE functions.

FREE 32 bit platform VSPE API key (x86 only)

Please look for the FREE 32 bit VSPE API key in the distribution package (VSPE_API_32_KEY.txt in SetupVSPE.zip). Please note, that this key is valid for the current version only! After installing new VSPE version, you should replace old key with the new one.

DOWNLOAD

http://www.eterlogic.com/downloads/SetupVSPE.zip

Contoh aplikasi. Di-upload ulang dari situs http://www.youtube.com/watch?v=5pQ6gwv_Gcc

___________________________________________

Daftar Pustaka

http://www.edaboard.com/thread165710.html

http://www.eterlogic.com/Products.VSPE.html

http://www.eterlogic.com/Downloads.html

Filed under electrical engineering Tagged with emulator, free-software, interfacing perangkat, komunikasi serial, serial port, Software, Virtual Serial Ports Emulator, VSPE

Koneksi Mikrokontroler ATmega8535 Dengan Modul GSM Fastrack M1306B

Aplikasi Serial Terminal Berbasis Java Menggunakan NetBeans IDE (Menggunakan SimpleSerialNative.dll)

Virtual Serial Ports Emulator dari eterlogic.com

Virtual Serial Ports Emulator
The emulation solution

Description

Key features

Requirements

FREE license for 32 bit platform (x86)

FREE 32 bit platform VSPE API key (x86 only)

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WanGReadY

Koneksi Mikrokontroler ATmega8535 Dengan Modul GSM Fastrack M1306B

Aplikasi Serial Terminal Berbasis Java Menggunakan NetBeans IDE (Menggunakan SimpleSerialNative.dll)

Virtual Serial Ports Emulator dari eterlogic.com

Virtual Serial Ports Emulator The emulation solution

Description

Key features

Requirements

FREE license for 32 bit platform (x86)

FREE 32 bit platform VSPE API key (x86 only)

Linkedin & Youtube

Tokopedia

Categories

Archives

Blog Stats

Recent Posts

Top Clicks

Meta

WanGReadY

Virtual Serial Ports Emulator
The emulation solution