Can i use TTL based GSM sim 300 module for Atmega 8l (i need only to send msgs)

[Sunil Kumar]

sir/madam/friends,

Just wanted to confirm tat Can i use TTL based GSM sim 300 module instead of rs232 based one for Atmega 8l (i need only to send msgs)
By using PD1(RX ) pin of ATMEGA 8L

thanks in advance,
with regards,
Sunil Kumar S.

[sushant]

yes u can use TTL based GSM modem, conncnnct microcontroller  pin rx to GSM tx and microcontroller pin TX to GSM rx. and write the code for atmega8 and write the message in the code and  you can eaisly send the message to any mobile no.

[AJISH ALFRED]

Of course you can! No problem. Just use the same baud rate on both devices.

[Sunil Kumar]

thanx a lot for help

actually I had problem with TTL on my board so i wasn’t getting output

now i tried with another board its working fine

 

with regards,

[Author]

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