after uploading it always says "avrdude: stk500_getsync(): not in sync: resp=0x1c"
i hope you can help me
- Code: Select all
/*
GSM Send Sketch for Arduino
Initializes GSM Module and sends an SMS to recipient
The circuit:
*Arduino pin 0 (RX) - GSM Module (TX)
*Arduino pin 1 (TX) - GSM Module (RX)
Created 2010
by Meann Zabanal
Modified
by John for GSM Shield testing
*/
char Rx_data[50];
unsigned char Rx_index = 0;
int i = 0;
char msg[160];
int sig;
void setup() {
Serial.begin(38400);
initGSM();
send_msg("09167029131", "Arjen Garcia");
}
void loop() {
//none
}
void send_msg(char *number, char *msg)
{
char at_cmgs_cmd[30] = {'\0'};
char msg1[160] = {'\0'};
char ctl_z = 0x1a;
sprintf(msg1, "%s%c", msg, ctl_z);
sprintf(at_cmgs_cmd, "AT+CMGS=\"%s\"\r\n",number);
sendGSM(at_cmgs_cmd);
delay(100);
delay(100);
delay(100);
sendGSM(msg1);
delay(100);
}
void sendGSM(char *string){
Serial.write(string);
delay(90);
}
void clearString(char *strArray) {
int j;
for (j = 100; j > 0; j--)
strArray[j] = 0x00;
}
void send_cmd(char *at_cmd, char clr){
char *stat = '\0';
while(!stat){
sendGSM(at_cmd);
delay(90);
readSerialString(Rx_data);
stat = strstr(Rx_data, "OK");
}
if (clr){
clearString(Rx_data);
delay(200);
stat = '\0';
}
}
void initGSM(){
send_cmd("AT\r\n",1);
// send_cmd("ATE0\r\n",1); // Turn off automatic echo of the GSM Module
send_cmd("AT+CMGF=1\r\n",1); // Set message format to text mode
//Sucess
Serial.println("Success");
delay(1000);
delay(1000);
delay(1000);
}
void readSerialString (char *strArray) {
if(!Serial.available()) {
return;
}
while(Serial.available()) {
strArray[i] = Serial.read();
i++;
}
}
