pic16f877a





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: :
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2





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(mt 8870 ) ( binary number)




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80 120

2 220 6 ( 120 120 6 ) 220 6
6 (6 ) 120 ( 120 )




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2-
3-

(pic 16f877a) (A B C D E )

33




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(led)

(led)


. . 1139 * 965.

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. . 1116 * 602.



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[
url=http://upload.qariya.info/images/qariya-5abefe55bd.jpg]
. . 765 * 547.
[/url]
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Ntc
nee to connection

Tt1

Test telephone 1

1
Rt1
ring telephone 1

(x1)

Ct1
Connect to telephon1
4066
In ex
Internal line or external line

Tone

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pic16f877a

http://upload.qariya.info/images/qariya-e4a2854719.jpg

.hex pic microcontroler
http://www.4shared.com/file/24633383...hex_files.html

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http://upload.qariya.info/images/qariya-982ce8f72f.gif
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1 -
2- A (4066) 4066
# 0 PIC 16F877A


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