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Sonsivri > Electronics > Pic Basic Languages (Moderator: bbarney) > 8 OR 12 LINE TELEPHONE INTERCOM
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chandra2sekhar2000
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« 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.
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mitsos
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« Reply #1 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
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chandra2sekhar2000
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« Reply #2 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
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pramodjaipur
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« Reply #3 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
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chandra2sekhar2000
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« Reply #4 on: May 08, 2007, 09:05:20 09:05 »
hai pramod
can u share ur circuit please.i will try to change controller.
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pramodjaipur
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« Reply #5 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
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vdslnet
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« Reply #6 on: January 02, 2009, 06:40:25 18:40 »
I am too interested to see this project...
-Achira / [email protected]
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ipek
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« Reply #7 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
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