i want to connect my nokia n73 mobile with 8051. cau u help me how to design a cable for it, which can connect these two(microntroller and mobile phone).actually i am a beginner. i have a data cable with USB cable ,wiyh which i connect mobile with computers(pc suite).
at commands work properly with hyperterminals, but i want to connect it with mobile.
thanks
its so nice of u,that u replied. but i want to elaborate my problem . 1)-i am using nokia n73(which supports AT commands).now i want assistance in circuit diagram - how to connect my pop port of n73 with microcontroller, so that i can send at commands to read or send sms. pin diagram of n73 pop port :pinouts.ru/.../nokia_dku2_cable_pinout.shtml also :pinouts.ru/.../nokia_pop_pinout.shtml
2)- after that how the AT commands is transferred to micro controler? is it through serial transmission from microcontroller using TCON,SCON register programming?
3)- in hyper terminal we type AT and in reply we get OK by mobile. now in case of microcontroller will it be ASCII code of "AT"?
thanking you.
after seeing pin diagram of pop port(N73) i deduce that it is USB type communication. will it be possible to connect n 73 with 8051 and send at commands?
Didn't I mention something about that in my very first reply...?
thanks andrew.\:) but what is the subsitute of 8051? is it pic controllers? do they work with usb interface?
You're missing the point!
The point is that you will require a microcontroller with a USB Host. That means both a Host hardware interface and a Host software stack.
This is not trivial - are you really sure that you are equipped to tackle this?
if i connect 8051 at com1 & phone modem at com2, then is the communication between com1 & com2 using hyperterminal(or any other software) possible or not? in that case microntroler 'll be made tx and modem rx....
Yes, of course you could do that - but what would be the point?!
You might as well get rid of the 8051 completely, and just use the PC!
basicaly i am designing a home aplliance control system.(HACS) in which some sensors keep an eye on some parametrs like temp of room,smoke sensors(which will detect fire) and these sensors will be interface with microcontroller(i know abt 8051 only) and if any smoke is detected then microcontroller will send a massage to other phone (eg.fire brigade). now my problem lies here. how to send a message through controller using a mobile phone(having modem,i have nokia n73)? through hyperterminal using AT commands i have sent sms to other mobile,but i want it to be sent automatically through controller that "fire is detected". ............... i planned for two conections , one between microcontroller & hyperterminal- AND another conection between mobile phone and hyperterminal(with same pc). now- microtroller will send "at commands" through serial port to hyperterminal, and hyperterminal transfer these commands to mobile modem, which will force mobile phone to send required sms acc. to situation.
You DO realize that SMS is NOT a real-time notification method. It is dependent on the network. You may have your structure burn to the ground before you get a notification.
What is the point of the PC??
Why would you use a phone to do this??
Buddy, I am trying to build a HACS system, in which user can control his household appliances just by using his phone and getting appliance updates from the other end by the microcontroller using an SMS through the mobile connected to microcontroller.. ..... So, in my model i have a microcontroller connected with a mobile, by which the appliances can be switched on and off. So, this describes the structure depicting my commanding section. The commanding section is done. ,.,.,.,. Now, for the updating section.. i want to connect the mobile with microcontroller so that microcontroller on getting info from the sensors connected to it, will initiate an SMS thourogh the mobile to us. Now, as u said that 8051 can't be interfaced directly with mobile modem(N73), so i included PC to Interface these two using hyperterminal. But again there lies a severe problem, that the microcontroller and mobile will be connected to two different com ports and using two different hyperterminal windows.
ai yi yi...
Send SMS via the PC and forget the phone. Google 'Send SMS from PC' for how to do it.
Mama mia! what a mess! why bother when this can be solved in so many trivial/less trivial but practical ways...!!!!
"I have this thingy and I WILL use it" (stamping little feet).
This would be so simple if s/he would use a 'regular' modem with a plain serial interface.
Erik
No, that is not (just) a "modem" - that is a Phone!
As previously mentioned, this is the root of your problem - so don't use it!
A Phone is not an appropriate device for this application.
You need a proper GSM modem (or module) that is specifically designed for embedded use,
'Cause right around now is senior design 'crunch time' (at least I HOPE thats what this is).