GSM module

Projects Networking, Protocols, and Devices
1

Hi everyone,

New here.

I've just got my arduino up and running and made a few simple programs (morse code, of course!).

I happen to have a SIM900 GSM Minimum System Module (http://imall.iteadstudio.com/im120525010.html) which is not the ICOMSAT version. Can I use this or do I need to buy the ICOMSAT (http://imall.iteadstudio.com/im120417009.html).

If I can use it can someone kindly tell me how to connect the boards?

Thanks!

2

Ok, so I am using this library: GitHub - jgarland79/GSM_Shield: GSM Library for the SIM900 chip and the GBoard Arduino GSM development board

I connected RX and TX to Pin 4 and 5 respectively on the Arduino but the module is not responding (it is turned on etc).

Can anyone help?

3

Solved: The library and documentation weren't consistent. The documentation states using 4 as RX and 5 as TX but softwareserial is defined as 2 and 3.