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gsm gprs moule problem

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Kingjeffrey

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hello i'm using a sim900D and i'm trying to send a sms through microcontroler
the problem that i was encounter right now is that when i reach the AT+CMGF=1$0D the outcome is error instead of ok..
how can i fixed this please do help me..asap! i'm using a terminal..
 

For sending sms, the syntax for that is AT+CMGS="xxxxxxxxxxx"<CR><LF> where xxxxxxxxxxx = cell phone number to which you want to send SMS. The hex value for <CR> = 0x0D, and for <LF>=0x0A.
 
yahp i know that....
my only problem is AT+CMGF=1$0D I CAN't proceed to other command if i dont fix the error...is their any hex that i can use or if you know the process please do help me or take down the whole program using terminal.,,tnx alot
 

Okay! But i am not able to get you why you want to use AT+CMGF=1$0D?
 

i think you have some problem in code to sent the command from microcontroller. So, try the following code to sent from microcontroller

AT+CMGF=1,0DH,0AH (where 0DH and 0AH both used for special character (enter))
i think this will help you, if it will not solve your problem then sent me your code.

- - - Updated - - -

i think you have some problem in code to sent the command from microcontroller. So, try the following code to sent from microcontroller

AT+CMGF=1,0DH,0AH (where 0DH and 0AH both used for special character (enter))
i think this will help you, if it will not solve your problem then sent me your code.
 

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