Keyestudio SIM900 Manual page 6

{
SIM900.println("ATD15812345678;"); // the numbers behind ATD is your phone
number to dial.
delay(100);
SIM900.println("ATD15812345678;");
delay(30000);
SIM900.println("ATH");
}
void setup()
{
pinMode(9, OUTPUT);
SIM900.begin(19200);
SIM900_Start();
delay(20000); // wait for SIM900 to work
}
void loop()
{
Call_Phone();
do
{
}
while(1);
}
Shipping List:
1. keyestudio SIM900 GSM_GPRS Module Shield *1
2. Extension Cable 22CM *1
keyestudio
// wait for 30 seconds...
// hang up
//set baud rate
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