GSM INTERFACE WITH PIC

[Ann George]

I’ve been tryin to send an sms thru GSM modem, the commands being input serially thru PIC16F877A.

The modem’s working fine when commands are sent thru hyperterminal, but no response when interfaced to PIC….pls advice

[AJISH ALFRED]

Check whether your TTL to serial converter is working properly. Can you send the same commands from the PIC to hyperterminal without any problem?

[faizal]

1) check your pic baud rate

2) connect your pic tx pin to pc via max232.

3) send test string to hyperterminal. e.g: USART_Write(“test”) for mikroc

[Ann George]

It’s working quite fine now…i s’pose the setting of delay between commands was the problem. Thank you all!

 

[Humad Ahmed]

Currently, I am doing the exact same thing… Can you please send me your sample code, it will be really helpful. I have written some code but the AT Commands keep on looping…

[Author]

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