signal strength

[krlogan]

getSignalStrength(buffer) command is returning a 0 value despite a return of 15 from the AT+CSQ when manually entered

[lanselambor]

Maybe getSignalStrength was invoked before network being registered. Try to wait for network registration.

while(!gprs.isNetworkRegistered())
{
    delay(1000);
    Serial.println("Network has not registered yet!");
}