Pls am using this https://linksprite.com/wiki/index.php5?title=ATWIN_Quad-band_GPRS/GSM_Shield_for_Arduino
GSM Shield , and I want to send and receive sms , what are the general AT command steps to do so....i don't mean what is the commands ..i'll search for the syntax... but what are the name and sequence of steps needed to setup the shield , do any validation, checking before sending ,plus what are the steps of sending ??
I am not familiar with the module you are using, but on the link you pasted there are two example projects. Read the codes and see if you can understand them, then make some modifications.