controlling mobile phone using microcontroller - Electronic Circuits Projects Diagrams Free

froten · 5th July 2006, 09:23 AM

Hello all,

Im trying to make a remote control system using mobile phones where I will send a didgital control signal from the control station to destination using two mobile phones one fro sending data and the second to recieve the data. I used the pobile mic to send my digital signal and used the speaker in the receiving phone to get back the signal. Because I will useing a digital data, I used a sequre wave as the input in the sending hpone but in the receving phone I got almost sine wave (may be due to the internal filters of the mobiles) which is not digital data as I sent. My idea is this: I need to send and recive a control signal (digital or analog) using mobile phone, so please whoever has anyidea or research or hint let me know as this progect is my graduate project and I have only small idea about mobile programming and control.

any help is greatly appriciated.

mramos1 · 5th July 2006, 05:50 PM

Why not use DTMF in the phones? I know my sprint still fake DTMF.

What kind of phones, how are you connected to them? How are you going off-hook on the receiving phone??? More details more help.

Maybe a regular phone to a pager would be easier and cheaper..

adaminc · 5th July 2006, 06:55 PM

I would suggest using a cellular module, Telit makes a bunch of them with amazing features, I posted about it in the other thread about controlling mobile phones with a uC

froten · 5th July 2006, 09:40 PM

I used NOKIA 1100 to send the signal and NOKIA 6020 to receive the signal. Another way I found in the net is that NOKIA mobile phones can run some applications that were designed to be run on the mbile phones, for example, NOKIA 6020 can run application written by NOKIA development tools like carbide-j and targetd for S40 platform.

Does any body have experince with that and can advise if it is possible to write application to run on the mobile phone and make it send and receive data?

adaminc · 5th July 2006, 09:43 PM

I looked into this before, and I found that you cant use it for an automated solution, because the application on the "remote" cellphone cant be remotely controlled, it has to do with most cellphone companies building a "sandbox" inwhich all applications are run, and they cant access anything outside of the sandbox, its a security thing so mischevious applications cant take over someones cellphone remotely (think trojan)

6th July 2006, 05:35 AM

JAVA doesn't allow you access ports, so you have to use modem to modem data transfer. As USB ports are used you will have to use a USB capable micro to interface.

GraveYard_Killer · 8th July 2006, 02:44 AM

Quote:

Originally Posted by Paul Obrien

JAVA doesn't allow you access ports, so you have to use modem to modem data transfer. As USB ports are used you will have to use a USB capable micro to interface.

is this true? cause im studying Java from scratch because I want my serial and parallel port interfaced programs work in linux as well as in windows.

adaminc · 8th July 2006, 03:55 AM

he means on a cellphone it cant access the ports

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5th July 2006, 09:23 AM	(permalink)
froten	controlling mobile phone using microcontroller Hello all, Im trying to make a remote control system using mobile phones where I will send a didgital control signal from the control station to destination using two mobile phones one fro sending data and the second to recieve the data. I used the pobile mic to send my digital signal and used the speaker in the receiving phone to get back the signal. Because I will useing a digital data, I used a sequre wave as the input in the sending hpone but in the receving phone I got almost sine wave (may be due to the internal filters of the mobiles) which is not digital data as I sent. My idea is this: I need to send and recive a control signal (digital or analog) using mobile phone, so please whoever has anyidea or research or hint let me know as this progect is my graduate project and I have only small idea about mobile programming and control. any help is greatly appriciated.

5th July 2006, 05:50 PM	(permalink)
mramos1	Why not use DTMF in the phones? I know my sprint still fake DTMF. What kind of phones, how are you connected to them? How are you going off-hook on the receiving phone??? More details more help. Maybe a regular phone to a pager would be easier and cheaper..

5th July 2006, 06:55 PM	(permalink)
adaminc	I would suggest using a cellular module, Telit makes a bunch of them with amazing features, I posted about it in the other thread about controlling mobile phones with a uC

5th July 2006, 09:40 PM	(permalink)
froten	I used NOKIA 1100 to send the signal and NOKIA 6020 to receive the signal. Another way I found in the net is that NOKIA mobile phones can run some applications that were designed to be run on the mbile phones, for example, NOKIA 6020 can run application written by NOKIA development tools like carbide-j and targetd for S40 platform. Does any body have experince with that and can advise if it is possible to write application to run on the mobile phone and make it send and receive data?

5th July 2006, 09:43 PM	(permalink)
adaminc	I looked into this before, and I found that you cant use it for an automated solution, because the application on the "remote" cellphone cant be remotely controlled, it has to do with most cellphone companies building a "sandbox" inwhich all applications are run, and they cant access anything outside of the sandbox, its a security thing so mischevious applications cant take over someones cellphone remotely (think trojan)

6th July 2006, 05:35 AM	(permalink)
Paul Obrien	JAVA doesn't allow you access ports, so you have to use modem to modem data transfer. As USB ports are used you will have to use a USB capable micro to interface.

8th July 2006, 03:55 AM	(permalink)
adaminc	he means on a cellphone it cant access the ports