Pic to GSM Phone connection (HSerin problems)

[stu746]

hi again

finally got this working with the circuit from here

http://www.atrox.at/datacable/dlr3/index.html

i omitted the max232 and just wired the rx and tx to the resistors

the following works great
serout2 portb.5, 396,["atz",cr]
serout2 portb.5, 396,["atd +447890563875;",cr]

but when trying to get a response from the pic with the following it just hangs

serout2 portb.5, 396,["atz",cr]
serin2 portb.4,396,[wait("ok")]


so i tried

serout2 portb.5, 396,["a"]
serin2 portb.4, 396,[b0]
Lcdout b0

and it did echo back the a, so i do have 2 way comms

anyone have any idea how best to get an ok back from the phone?

thanks, Stu

[aruran]

Hello, I am new to this field...
I want the modified schematic you said that worked in the following quoted message. If you can send it to me, it will be a great help..


thanking you
aruran

hi again

finally got this working with the circuit from here

http://www.atrox.at/datacable/dlr3/index.html

i omitted the max232 and just wired the rx and tx to the resistors

the following works great
serout2 portb.5, 396,["atz",cr]
serout2 portb.5, 396,["atd +447890563875;",cr]

but when trying to get a response from the pic with the following it just hangs

serout2 portb.5, 396,["atz",cr]
serin2 portb.4,396,[wait("ok")]


so i tried

serout2 portb.5, 396,["a"]
serin2 portb.4, 396,[b0]
Lcdout b0

and it did echo back the a, so i do have 2 way comms

anyone have any idea how best to get an ok back from the phone?

thanks, Stu