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Topic: Arduino Mega 2560, SIM900 and library GSM.h (Read 9914 times) previous topic - next topic


I use a GSM / GPRS Sield SIM900 like this on : http://mchobby.be/wiki/index.php?title=GeekOnFire_GSM/GPRS_Shield
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 ,


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



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


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