Arduino Mega 2560, SIM900 and library GSM.h

Official Hardware Retired GSM Shield
1

Hello,
I use a GSM / GPRS Sield SIM900 like this on : GeekOnFire GSM/GPRS Shield — MCHobby - Wiki
I use it With a Arduino Mega 2560
To connect my Sield to ArduinoMega 2560, I used this link: http://www.elecfreaks.com/wiki/index.php?title=EFcom/GPRS_Shield_Guide

With this definition for the library softwareSerial :

/ / SoftwareSerial mySerial (RX, TX)
~~ / / SoftwareSerial mySerial (50, 8 ) / / old on OK TOO~~
SoftwareSerial mySerial (50, 51) / / OK the best for my Mega

All works well, but with the same configuration I want to test the library GSM.h
I can't find how to connect it, or jumper settings, CAUTION: Always with Mega 2560
How should I do this ?
Thanks for answers ,
Henry

2

Hi, could you post a photo of your set-up? (hardware).

I try with many ways, but I don't know why it doesn't work

Bye

3

I use this setup: http://www.elecfreaks.com/wiki/index.php?title=EFcom/GPRS_Shield_Guide
I dont use jumper
RX(the middle needle) on SIM900 directly to pin 50 on the MEGA
TX(the middle needle) on SIM900 directly to pin 51 on the MEGA
I use the library SoftwareSerial.h (SoftwareSerial mySerial (50, 51) / / OK the best for my Mega)
I dont need GSM.h, I forgot it
I only use the ayes orders, it is a good way to learn

sincerely
Henry