We were able to lighten up the LED with an sms.
Keeping the code below. This code will lighten 9 leds which are kept from port 4 to 12. The sms code is "0#iii#iii#iii, where i =0 or 1 meaning off or on respectively. Ex. 0#111#111#111 will switch on all the leds.
The modification was AT+CNMI=2,2,0,0,0 instead of AT+CNMI=3,3,0,0 from our previous code.
char inchar; //Will hold the incoming character from the Serial Port.
int led1 = 4;
int led2 = 5;
int led3 = 6;
int led4 = 7;
int led5 = 8;
int led6 = 9;
int led7 = 10;
int led8 = 11;
int led9 = 12;
void setup()
{
// prepare the digital output pins
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
pinMode(led3, OUTPUT);
pinMode(led4, OUTPUT);
pinMode(led5, OUTPUT);
pinMode(led6, OUTPUT);
pinMode(led7, OUTPUT);
pinMode(led8, OUTPUT);
pinMode(led9, OUTPUT);
// initially all are off
digitalWrite(led1, LOW);
digitalWrite(led2, LOW);
digitalWrite(led3, LOW);
digitalWrite(led4, LOW);
digitalWrite(led5, LOW);
digitalWrite(led6, LOW);
digitalWrite(led7, LOW);
digitalWrite(led8, LOW);
digitalWrite(led9, LOW);
//Initialize GSM module serial port for communication.
Serial.begin(9600);
delay(3000); // give time for GSM module to register on network etc.
Serial.println("AT+CMGF=1\r"); // set SMS mode to text
delay(200);
Serial.println("AT+CSMS=1\r");
delay(200);
// Serial.println("AT+CNMI=3,3,0,0"); // set module to send SMS data to serial out upon receipt
Serial.println("AT+CNMI=2,2,0,0,0"); // set module to send SMS data to serial out upon receipt
delay(200);
}
void loop()
{
//If a character comes in from the Serialular module...
if(Serial.available() >0)
{
delay(10);
inchar=Serial.read();
if (inchar=='0') // to catch the 1st 0 in our string 0#101#101#101
{
// digitalWrite(13, HIGH);
// for #101________________
inchar=Serial.read(); // read next char i.e '#'
if (inchar=='#')
{
inchar=Serial.read(); //read next char i.e 1
if (inchar=='0')
{
digitalWrite(led1, LOW);
}
else if (inchar=='1')
{
digitalWrite(led1, HIGH);
}
delay(10);
inchar=Serial.read(); //read next char i.e 0
if (inchar=='0')
{
digitalWrite(led2, LOW);
}
else if (inchar=='1')
{
digitalWrite(led2, HIGH);
}
delay(10);
inchar=Serial.read(); //read next char i.e 1
if (inchar=='0')
{
digitalWrite(led3, LOW);
}
else if (inchar=='1')
{
digitalWrite(led3, HIGH);
}
} //end of 1st 'if char==#' loop
//for _____ #101 _______
inchar=Serial.read(); // read next char i.e '#'
if (inchar=='#')
{
inchar=Serial.read(); //read next char i.e 1
if (inchar=='0')
{
digitalWrite(led4, LOW);
}
else if (inchar=='1')
{
digitalWrite(led4, HIGH);
}
delay(10);
inchar=Serial.read(); //read next char i.e 0
if (inchar=='0')
{
digitalWrite(led5, LOW);
}
else if (inchar=='1')
{
digitalWrite(led5, HIGH);
}
delay(10);
inchar=Serial.read(); //read next char i.e 1
if (inchar=='0')
{
digitalWrite(led6, LOW);
}
else if (inchar=='1')
{
digitalWrite(led6, HIGH);
}
} //end of 2nd 'if char==#' loop
//for _____ _____ #101
inchar=Serial.read(); // read next char i.e '#'
if (inchar=='#')
{
inchar=Serial.read(); //read next char i.e 1
if (inchar=='0')
{
digitalWrite(led7, LOW);
}
else if (inchar=='1')
{
digitalWrite(led7, HIGH);
}
delay(10);
inchar=Serial.read(); //read next char i.e 0
if (inchar=='0')
{
digitalWrite(led8, LOW);
}
else if (inchar=='1')
{
digitalWrite(led8, HIGH);
}
delay(10);
inchar=Serial.read(); //read next char i.e 1
if (inchar=='0')
{
digitalWrite(led9, LOW);
}
else if (inchar=='1')
{
digitalWrite(led9, HIGH);
}
} //end of 3rd 'if char==#' loop
} // "ckeck 0 in front of string" wala loop close
//Serial.println("AT+CMGD=1,4"); // delete all SMS
} // serial available condition close
// Serial.println("AT+CMGR=1\r");
// delay(4000);
} // LOOP function close