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Topic: Sim 800L script don´t work (Read 498 times) previous topic - next topic

Hypec

Hello,
my script with which I want to connect my Sim 800l with the gsm always stops by it self.Did someone know wy it do this?

Code: [Select]
#include <SoftwareSerial.h>
#define SIM800_TX 8
#define SIM800_RX 9
SoftwareSerial mySerial(SIM800_TX, SIM800_RX);

int start = 0;
int zustand = 0;
int error_z = 0;
unsigned long Millis;
unsigned long Intervall;
enum ZKom : byte { SENDEN, EMPFANGEN };
ZKom zustandKom = SENDEN;

#define ZEILENTRENNZEICHEN 13
char* receiveBuffer() {
  static char lineBuffer[40];
  static byte counter = 0;
  char c;
  if (mySerial.available() == 0) return NULL;
  if (counter == 0) memset(lineBuffer, 0, sizeof(lineBuffer));
  c = mySerial.read();
  if (c == ZEILENTRENNZEICHEN)
  {
    counter = 0;
    return lineBuffer;
  }
  else if (c >= 32)
  {
    lineBuffer[counter] = c;
    if (counter < sizeof(lineBuffer) - 2) counter++;
  }
  return NULL;
}

void setup() {

  Serial.begin(9600);
  while (!Serial);

  mySerial.begin(9600);
  while (!mySerial);

  Serial.println("Bereit");

}

void loop() {

  if (zustandKom == SENDEN) {
    if (start == 0) {
      zustand = Serial.read();
      if (zustand > 48 ) {
        start = 1;
        Serial.println(zustand);
      }
    }
    switch (zustand) {

      case 49:
        Serial.println("Case 1");
        while (!mySerial);
        mySerial.println("AT");
        zustand = 50;
        zustandKom = EMPFANGEN;
        break;

      case 50:
        Serial.println("Case 2");
        while (!mySerial);
        mySerial.println("AT+SAPBR=3,1,Contype,GPRS");
        zustand = 51;
        zustandKom = EMPFANGEN;
        break;

      case 51:
        Serial.println("Case 3");
        while (!mySerial);
        mySerial.println("AT+SAPBR=3,1,APN,web.vodafone.de");
        zustand = 52;
        zustandKom = EMPFANGEN;
        break;

      case 52:
        Serial.println("Case 4");
        while (!mySerial);
        mySerial.println("AT+SAPBR=3,1,USER,vodafone");
        zustand = 53;
        zustandKom = EMPFANGEN;
        break;

      case 53:
        Serial.println("Case 5");
        while (!mySerial);
        mySerial.println("AT+SAPBR=3,1,PWD,vodafone");
        zustand = 54;
        zustandKom = EMPFANGEN;
        break;

      case 54:
        Serial.println("Case 6");
        while (!mySerial);
        mySerial.println("AT+SAPBR=1,1");
        zustand = 55;
        zustandKom = EMPFANGEN;
        break;

      case 55:
        Serial.println("Case 7");
        while (!mySerial);
        mySerial.println("AT+SAPBR=2,1");
        zustand = 56;
        zustandKom = EMPFANGEN;
        break;

      case 56:
        Serial.println("Verbindung fertig");
        start = 0;
        break;

    }
  }

  if (zustandKom == EMPFANGEN) {
    char* text = receiveBuffer();
    if (text != NULL) {
      if (strcmp(text, "OK") == 0 ) {
        Serial.println(text);
        delay(1000);
        zustandKom = SENDEN;
      } else if (strcmp(text, "ERROR") == 0 ) {
        Serial.println(text);
        error_z++;
        //Serial.println(error_z);
        if (error_z <= 2) {
          zustand--;
          zustandKom = SENDEN;
        } else {
        }     
      } else {
        Serial.println(text);
      }
    }
  }
}


Sorry for my english it was very bad, but i try to was better.

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