mobile to mcu interfacing

Elslam Alaikom

HI every body

please Help me in Graduation project

I want to connect pic16f877A To Sony Ericsson j210i or Samsung c100 (to send sms

using AT command)

I attempt to connect it to mcu many times with and without max232 and nothing is

gone.

previously I attempt to Send AT command from hyper terminal using Samsung c100

with Serial Cable and I found no response in hyper terminal and in many times hyper

hangs ;

I was using hyper terminal settings:

Baud rate :9600

8 bit

no parity

flow control none

and I have tested the mcu and it send successfully the AT command serially to Hyper

terminal to be sure that the mcu sending AT command .


please help me with full interface schematic between mobile and mcu?

and the hyper terminal settings for testing purpose?

and it is necessary to use max232 between mobile and mcu(pic16f877A)


please help me urgently there is no time and I have searched many times in this

forum and I cant solve the problem yet.

and thank you .

Waalaikum Salam ,

I don't know about samsung or se interfacing, but if you just want to send sms, I

prefer siemens. I use siemens M35 or C35 (I use this because AT command

for this model can be downloaded free). Cable data can be directly connected to

micrcontroller (after added max 232), and u can trial it using hyper terminal.

hope this help.

jazak allaho khairan

can you send me the interface schematic between mobile and mcu

Thank you very much