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Author Topic: Req: 2 Way Door Phone / Intercom  (Read 1496 times)
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charudatt
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« on: August 19, 2009, 11:21:26 11:21 »

Hi,

I am looking for some ideas on how to make a 2 Wire , 2 Way Door Phone / Intercom.

I have successfully built a Simplex one using Silicon Chip article, and now I am wanting to make a full Duplex one.

Any one having any idea, please share.

regards
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hexadecimal
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« Reply #1 on: August 19, 2009, 12:28:51 12:28 »

http://www.electronics-lab.com/projects/telephone/014/index.html
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oldvan
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« Reply #2 on: August 19, 2009, 03:47:46 15:47 »

Get carried away, use a DSPIC chip with CAN controller, ADC & DAC for your audio, send data as CAN packets.
Go crazier and implement full-duplex intercom with noise cancelling.  :-)

Yes, is overkill, but bragging rights are good.
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