Retrieves the phone number an from an incoming SMS message and stores it in a named array.
SMS.remoteNumber(number, size)
In asynchronous mode, remoteNumber() returns 0 if the last command is still executing, 1 if success, and >1 if there is an error. In synchronous mode, it returns 1 if it successfully executes, and 0 if it does not.
// include the NB library
#include <MKRNB.h>
#include "arduino_secrets.h"
// Please enter your sensitive data in the Secret tab or arduino_secrets.h
// PIN Number
const char PINNUMBER[] = SECRET_PINNUMBER;
// initialize the library instances
NB nbAccess;
NB_SMS sms;
// Array to hold the number an SMS is retrieved from
char senderNumber[20];
void setup() {
// initialize serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
Serial.println("SMS Messages Receiver");
// connection state
bool connected = false;
// Start GSM connection
while (!connected) {
if (nbAccess.begin(PINNUMBER) == NB_READY) {
connected = true;
} else {
Serial.println("Not connected");
delay(1000);
}
}
Serial.println("NB initialized");
Serial.println("Waiting for messages");
}
void loop() {
int c;
// If there are any SMSs available()
if (sms.available()) {
Serial.println("Message received from:");
// Get remote number
sms.remoteNumber(senderNumber, 20);
Serial.println(senderNumber);
// An example of message disposal
// Any messages starting with # should be discarded
if (sms.peek() == '#') {
Serial.println("Discarded SMS");
sms.flush();
}
// Read message bytes and print them
while ((c = sms.read()) != -1) {
Serial.print((char)c);
}
Serial.println("\nEND OF MESSAGE");
// Delete message from modem memory
sms.flush();
Serial.println("MESSAGE DELETED");
}
delay(1000);
}