sogomogo
Newbie level 2
hello,
I am having trouble testing GSM 900D with arduino mega2560...GSM is not responding..i am not sure whether is program is incorrect or my connections are wrong..program is simple testing by sending AT command to GSM and waiting for response "ok" on serial monitor..here is program..
void setup(){
Serial.begin(9600);
}
void loop(){
Serial.write("AT");
delay(1000);
if (Serial.available())
{
char b=Serial.read();
Serial.print(b);
}
}
my connections are..
Tx from GSM connected to Rx0 from arduino.
Rx from GSM connected to Tx0 from arduino
GND from GSM connected to GND from arduino
any help will be useful..thanks
I am having trouble testing GSM 900D with arduino mega2560...GSM is not responding..i am not sure whether is program is incorrect or my connections are wrong..program is simple testing by sending AT command to GSM and waiting for response "ok" on serial monitor..here is program..
void setup(){
Serial.begin(9600);
}
void loop(){
Serial.write("AT");
delay(1000);
if (Serial.available())
{
char b=Serial.read();
Serial.print(b);
}
}
my connections are..
Tx from GSM connected to Rx0 from arduino.
Rx from GSM connected to Tx0 from arduino
GND from GSM connected to GND from arduino
any help will be useful..thanks