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Electronics => Pic Basic Languages => Topic started by: chandra2sekhar2000 on February 22, 2007, 03:24:33 15:24



Title: 8 OR 12 LINE TELEPHONE INTERCOM
Post by: chandra2sekhar2000 on February 22, 2007, 03:24:33 15:24
HELLO
CAN ANY BODY HELP ME IN DOING A 8 0R 12 LINE TELEPHONE INTERCOM USING PICBASIC PRO,PIC 16F877A.PLEASE PROVIDE ME THE CIRCUIT AND LINKS FOR FURTHER INFORMATION.
THANKS IN ADVANCE.


Title: Re: 8 OR 12 LINE TELEPHONE INTERCOM
Post by: mitsos on February 22, 2007, 07:55:44 19:55
Hi
you need the "hard to find" crosspoint switches, a good knowledge of telephone operation and signaling and the firmware for the pic maybe is the easier part of this project...
regards
mitsos


Title: Re: 8 OR 12 LINE TELEPHONE INTERCOM
Post by: chandra2sekhar2000 on February 23, 2007, 11:43:05 11:43
hi mitsos
if u have any information regarding the project?please post it here.
thank u


Title: Re: 8 OR 12 LINE TELEPHONE INTERCOM
Post by: pramodjaipur on May 08, 2007, 05:32:03 05:32
hi Chandra,

We worked on 8051 on intercom systems, why you want for pic based project.

regards


Title: Re: 8 OR 12 LINE TELEPHONE INTERCOM
Post by: chandra2sekhar2000 on May 08, 2007, 09:05:20 09:05
hai pramod
can u share ur circuit please.i will try to change controller.


Title: Re: 8 OR 12 LINE TELEPHONE INTERCOM
Post by: pramodjaipur on May 08, 2007, 02:03:36 14:03
Hi,

Why you want to change the controller; it is working fine with 8051.

We are trying to update the whole on ARM 7,

If you have any idea; please suggest.

regards



Title: Re: 8 OR 12 LINE TELEPHONE INTERCOM
Post by: vdslnet on January 02, 2009, 06:40:25 18:40
I am too interested to see this project...
-Achira / [email protected]


Title: Re: 8 OR 12 LINE TELEPHONE INTERCOM
Post by: ipek on January 04, 2009, 04:12:30 04:12
hi Chandra,
look at another MCU IAR Avr nice proj....
http://www.microsyl.com/intercomm/intercomm.html