i am bit confuse you want receive massage from gsm module if you want make relay on and off then you send command from gsm module which checked by controller and according that you can do on and off you particular relay as your required.
You will receive an unsolicited result code from the gsm module, means that it will send you data through serial port without any question from your side.
also how to manage gsm module memory because its gonna fillup after some time.
you need AT Commands to communicate with gsm module.
i am bit confuse you want receive massage from gsm module if you want make relay on and off then you send command from gsm module which checked by controller and according that you can do on and off you particular relay as your required.
exactly i want to do that but i dont know the checking part,how to do that? and thanks for sharing links but all of them talk about sending a message from ucontroller but not receiving a message from gsm module and checking it if its a valid instruction or not.
please reply
---------- Post added at 20:14 ---------- Previous post was at 20:12 ----------
exactly i want to do that but i dont know the checking part,how to do that? and thanks for sharing links but all of them talk about sending a message from ucontroller but not receiving a message from gsm module and checking it if its a valid instruction or not.
please reply
---------- Post added at 20:14 ---------- Previous post was at 20:12 ----------