Pic to GSM Phone connection (HSerin problems)

[Ioannis]

Have you set the mobile to TEXT SMS mode prior to use the code you sent as an example?

Also have you disabled the echo of the device (by ATE0)?

Test the same commands with a terminal to compare the results.

More than that I cannot help. Sorry.

Ioannis

[Russell]

i have implemented the given circuit(only the right portion).
i used 8Mhz crystal.
but no result.
can you please help me.

[mister_e]

So i hope you have include the Max232 (icl232) too?

[Ioannis]

As Steve asked, did you used the 232 chip? What do you mean by "only the right portion"?

Ioannis

[Ziki]

hi ...ioannis ..how do i disable the echo?ATEO mean? ..is it necesssary to off it ???
thxxx....

[Ioannis]

Yes. Please do disable the response from the mobile since everything that you type is echoed back so you can see it on the terminal window. But on the microcontrler it is not needed. In fact, it messes with the UART as it is getting characters.

ATE0 (<-- this is zero, NOT letter O) is AT command to disable echo. Not that after a reset, this cames back to normal, so you have to send it again. Say on top of the program.

Ioannis

[Ziki]

ok..thx...
can you have a look at this thread ....
http://www.picbasic.co.uk/forum/showthread.php?t=4425
i use serin since hserin canot work ....
but don't know why ...it can only store the 1st data into the variable -buffer(1)
since the speed is reduced to T300 ...it should be able to catch it right ?
i try using 8Mhz ...also no luck ....
thxx