surbyte:
Mira, aca tienes un tutorial del SIM908 que tal vez te pueda servir, luce muy similar a lo que estabas haciendo.
Intenta correrlo a ver si hay progreso.
Rescato el esquema y el código para ilustrar a los demás.
// Based on the 900 sim on cooking-hacks.com by Alejandro Gallego
// Reworked from from Serial to Software Serial and reformulated for GPS by Lloyd Summers
#include <SoftwareSerial.h>
int txPin = 11;
int rxPin = 10;
int modGSMPin = 8;
int modGPSPin = 7;
int pinDelay = 3000;
int8_t answer;
char aux_str[30];
char phone_number[] = "4036900707";
SoftwareSerial myGSM(rxPin, txPin);
void setup() {
// put your setup code here, to run once:
pinMode(txPin, OUTPUT);
pinMode(rxPin, INPUT); // used to turn on and off GSM
pinMode(modGSMPin, OUTPUT);
pinMode(modGPSPin, OUTPUT);
Serial.begin(115200);
Serial.println("Initializing...");
myGSM.begin(9600);
powerOnGSM();
Serial.println("Connecting..."); // checks for connection I believe
while ((sendATcommand("AT+CREG?", "+CREG: 0,1", 500) ||
sendATcommand("AT+CREG?", "+CREG: 0,5", 500)) == 0);
// 0 = not registered, not searching
// 1 = registered on home network
// 2 = not registered, but searching
// 3 = registration denied
// 4 = unknown (out of coverage?)
// 5 = roaming, registered
// 6 = SMS only, home network
// 7 = SMS only, roaming
// 8 = EMS
// 9 = CSFB not preferred, home network
// 10 = CSBFB not preferred, roaming
sendATcommand("AT+CREG=?", "OK",1000); // verifies network list
sendATcommand("AT+GSN","OK",5000); // IEMI
sendATcommand("ATX4","OK",5000); // Listen for dialtone + busy signal when dialing
delay(1000);
sendSMS("This is a test","4036900707"); // Test SMS
hangUp();
}
void loop() {
// put your main code here, to run repeatedly:
}
void hangUp() {
sendATcommand("ATH", "OK", 3000);
}
void sendSMS(char *message, char number) {
Serial.println("Sending SMS...");
sendATcommand("AT+CMGF=1", "OK", 1000); // prep SMS mode
// sprintf(aux_str,"AT+CMGS="%S"", number);
// answer = sendATcommand(aux_str,">", 2000);
answer = sendATcommand("AT+CMGS="4036900707"","OK",1000);
if (answer == 1) {
// myGSM.println(message);
myGSM.println("Test message.");
myGSM.write(0x1A);
answer = sendATcommand("", "OK", 20000);
if (answer == 1) {
Serial.println("Sent.");
} else {
Serial.println("Error");
}
} else {
Serial.print("Error ");
Serial.println(answer, DEC);
}
}
void dial(char number) {
Serial.println("Dialing phone number...");
sprintf(aux_str, "ATD%s;", number);
sendATcommand(aux_str, "OK", 10000); // dial
}
void powerOnGSM() {
uint8_t answer = 0;
// check if the module is started
answer = sendATcommand("AT", "OK", 5000);
if (answer == 0) {
// Send power on pulse
digitalWrite(modGPSPin, LOW);
digitalWrite(modGSMPin, HIGH);
delay(pinDelay);
//digitalWrite(modPin, LOW);
// wait for answer
while (answer == 0 ) {
answer = sendATcommand("AT", "OK", 2000);
}
}
}
int8_t sendATcommand(char ATcommand, char expected_answer, unsigned int timeout) {
uint8_t x = 0, answer = 0;
char response[100];
unsigned long previous;
memset(response, '\0', 100); // initalize string
delay(100);
while (myGSM.available() > 0) {
myGSM.read(); // clears the buffer
}
myGSM.println(ATcommand);
// Serial.println(ATcommand);
x = 0;
previous = millis();
do {
if (myGSM.available() != 0) {
response[x] = myGSM.read();
x++;
if (strstr(response, expected_answer) != NULL) {
answer = 1;
}
}
} while ((answer == 0) && ((millis() - previous) < timeout));
Serial.println(response);
return answer;
}
Copie el ejemplo tal cual...y sigue sin funcionar...me pone inicializando y luego ve que el scroll se la consola de arduino se mueve pero son caracteres en blanco
