SimcomGsmLib

Library for simcom modules (tested only on Sim800/Sim900)

Features:

• Not using arduino Strings, it uses ArduinoFixedString library that is safe equivalent of char arrays
• Automatic Serial baud rate negotiation
• Basic info: Signal quality, Operator Name, Battery Status, etc
• Incoming call info
• Networking - async TCP/UDP sockets

Installation:

1. Download repo to Arduino libraries directory(on windows - c:\Users\USERNAME\Documents\Arduino\libraries)
2. Download https://github.com/toomasz/ArduinoFixedString and extract it to Arduino libraries directory
3. Try sample sketch:

#include <SimcomGsmLib.h>
SimcomGsm gsm(Serial2, UpdateBaudRate);

void UpdateBaudRate(int baudRate)
{
   Serial2.end();
   Serial2.begin(baudRate, SERIAL_8N1, 19, 18, false);
}

void setup()
{
   Serial.begin(115200);
}

void loop()
{
   if (!gsm.EnsureModemConnected(115200))
   {
   	Serial.println("No modem found");
   	delay(500);
   	return;
   }
   
   int16_t signalQuality;
   IncomingCallInfo callInfo;

   gsm.GetSignalQuality(signalQuality);
   gsm.GetIncomingCall(callInfo);
   
   Serial.printf("Signal quality: %d\n", signalQuality);
   if (callInfo.HasIncomingCall)
   {
   	Serial.printf("Incoming call from %s\n", callInfo.CallerNumber.c_str());
   }
   delay(500);
}