Telephone Dialler For Burglar Alarms circuit

[hassan1980]

I am looking for a full project for {stand alone Telephone Dialler For Burglar Alarms circuit}

Would you please help me?

 

[creative_35]

If you are familier with microcontroller programming, use MT8880 as dialer and if you are not, try to use UM 9121X series dialer IC's. In microcontroler you can keep the numbers in memory, but in manual dialer ic's you have to use key pad.

 

[hassan1980]

If you are familier with microcontroller programming, use MT8880 as dialer and if you are not, try to use UM 9121X series dialer IC's. In microcontroler you can keep the numbers in memory, but in manual dialer ic's you have to use key pad.

Would you please uplaod the datasheet for UM 9121X?

 

[creative_35]

Uploading an easly available data sheet is a waste of band width and space of the forum. You can download the data sheet from the link below.

http://www.tranzistoare.ro/datasheets2/83/837260_1.pdf

 

[mzeitoun2002]

Salam Hassan,

For a security system you will have to use a microcontroller so you must be familier with hardware programming.

Microcontrollers can generate the DTMF tones needed for dialing directly without the need to a DTMF generator IC.

My advice is to try PIC microcontroller + PICC or PICBasic

Good Luck

 

[engaydi]

this is what u need

 

[engaydi]

also this circuit uses pic16f871 and controls 6 devices

 

[engaydi]

Telephone Dialler For Burglar Alarms circuit

 

[laktronics]

Hi,
Burglars often cut telephone lines first. So, make it cell phone or WLL based.
Regards,
Laktronics