3G/GPRS/GSM Shield for Arduino with GPS - American version SIM5320A

hi all,

im hoping to find some help here, I'm kinda new to this Arduino stuff. i have a small project I'm working on atm using a FONA3G.

what I'm wanting to do is pretty simple.

have the Arduino send a text when i pull pins high or low.

if A0 is low send sms "A0 is low"
fi A0 is high send sms "A0 is high"

and so on

Arduino Mega 2560
tinysine 3g shield SIM5320A

thanks Adam