Pic to GSM Phone connection (HSerin problems)

[Ioannis]

PBP does not have such string compring capabilities.

You have to make your own subroutine to compare byte to byte the two string array. Like that:

i=0
while i less_than gsmbuffer_length (I cant sen the less character! Why?)

if gsmbuffer[i]=compare_array[i] then
'gsmbuffer[i]=0
i=i+1
else
goto wrong_sms
endif
wend
correct_sms:
'your code here

wrong_sms:
'your code here

You understand that in compare_array you have to put your characters in some other place of the program prior to the above subroutine.

[Royce]

Thanks again but I'm afraid I dont quite understand. Really sorry but would it be possible to be little clearer.

Thanks again.

Kind Regards,
Royce

[Ioannis]

Hmm, what part you are not understanding?

Ioannis

[Royce]

Sorry.... would it be possible to add comments to each of the following lines:

You have to make your own subroutine to compare byte to byte the two string array. Like that:

i=0
while i less_than gsmbuffer_length (I cant sen the less character! Why?)

if gsmbuffer[i]=compare_array[i] then
'gsmbuffer[i]=0
i=i+1
else
goto wrong_sms
endif
wend
correct_sms:
'your code here

wrong_sms:
'your code here

Could you give me an example using the SMS keyword: "switch on" in order to switch on an LED.

Thanks again.

Regards,
Royce

[Ioannis]

The commands used in the small piece of code are very elementary. So you have to read the manual because all the answers are in there.

I cannot explain how an If-Then-EndIf statement is syntaxed or how is working. The code I gave you is very very easy and basic I could say.

It is comparing one element of the array gsmbuffer at a time with one element of the other array. If it succeeds then it is moving on to the part of the program labeled:

correct_sms:
'you add your code here

If it does not succeed then it is moving on to the part of the program labeled:

wrong_sms:
'you add your code here

Try to write some code and see what happens. One part at a time...

Ioannis

[Royce]

Thanks Ioannis. I will do my homework.

Kind Regards,
Royce

[muddy0409]

Hello all,
I have been doing something similar with an Ericsson T68I phone.
I communicated at 1200 buad and use AT command set.
I am NOT trying to send SMS, but DTMF tones. I am getting the phone to dial by using the access keypad AT command (rather than ATD command, which for some reason wouldn't work) and then activating send DTMF tones. Sorry I can't remember what the AT for these are, but what I dis was successful withoput too much trouble. Simple serout at N1200 (without MAX232 chip) was the most successful from a 4MHz 'F84. The T68I is autobaud so will talk at most baud rates above 1200.