Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Remote Control with Phone

Status
Not open for further replies.
S

shhn

Newbie level 3
Joined
Feb 22, 2010
Messages
4
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
izm
Activity points
1,309
i m developing phone and pic 16f877 application. Phone is telit 863 module. MCU can dial, answer, send or read sms. All of them ok. But my problem is, when remote phone dialing module, remote phone must be send number 1, number 2, etc.
Which AT command can read this number during the calling?


device 1 ---------CALL--------> device2
device 1 <-----answer---------- device2
device 1 -------send 3 ---------> device2 (i want to read "3")
device2 --> do something3
device 1 -------send 4 ---------->device2 (i want to read "4")
device2--> do something4
etc
device 1 <--------close----------> device2


Thanks:?:
 

i have some thing like that in my project
i will use PDU code sending and receiving

i don't know if it will work or no ......
 
Last edited:

if i can read any byte during the calling on rs232, i will write pdu code or any.. but i cant read any byte when button pressed??
 

shhn said:
i m developing phone and pic 16f877 application. Phone is telit 863 module. MCU can dial, answer, send or read sms. All of them ok. But my problem is, when remote phone dialing module, remote phone must be send number 1, number 2, etc.
Which AT command can read this number during the calling?


device 1 ---------CALL--------> device2
device 1 <-----answer---------- device2
device 1 -------send 3 ---------> device2 (i want to read "3")
device2 --> do something3
device 1 -------send 4 ---------->device2 (i want to read "4")
device2--> do something4
etc
device 1 <--------close----------> device2


Thanks:?:
Click to expand...

why dont u use DTMF
It may make it easy....
 

i cant use DTMF because gsm module have not support DTMF. Is there any software solution for DTMF?
 

shhn said:
i cant use DTMF because gsm module have not support DTMF. Is there any software solution for DTMF?
Click to expand...

There is no need for gsm module to support DTMF. You can use speaker/headphone output jack for detecting DTMF
 

Yes i can use speaker or handphone but gsm module direct connect with pic mcu. Module will be evaluated only DTMF tone . Can MCU detect DTMF tone?
 

shhn said:
Yes i can use speaker or handphone but gsm module direct connect with pic mcu. Module will be evaluated only DTMF tone . Can MCU detect DTMF tone?
Click to expand...

Yes, microcontroller can decode DTMF (DTMF library is available for micros). Else you can simply use a decoder mt8870 like chips to do the job.
 

the output from DTMF decoder will be the input of microcontroller. DTMF produce the output in the format as:
if you press...1 from your mobile phone then you get binary equivalent (that is 0001) at the output of DTMF decoder.
that output will be the microcontroller input.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top