Author Topic: how to connect seven segment with PIC  (Read 4109 times)

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Offline ect_09Topic starter

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how to connect seven segment with PIC
« on: November 01, 2014, 09:24:09 am »
Hi,
i have seven segment (3 segment connected together), i attached the image.
please tell me how to interface with PIC18f452.
doses it connect with a single port.
please guide me..
 

exapod

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Re: how to connect seven segment with PIC
« Reply #1 on: November 01, 2014, 10:29:15 am »
Is the display common anode or common cathode?
For common cathode http://www.extremeelectronics.co.in/pictutorials/images/SevenSegMux1.gif .
For common anode http://embedded-lab.com/blog/wp-content/uploads/2011/03/Lab11_Circuit_SevenSegmentMultiplexing.jpg .
In the program you simply turn on one of the digit and the desired segments, keep it on for some time then you turn it off and go to next digit, you do this fast enough that the human eye sees all the digits on.

 

Offline dannyf

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Re: how to connect seven segment with PIC
« Reply #2 on: November 01, 2014, 11:56:18 am »
Quote
how to connect seven segment with PIC

typically with wires, :)

Quote
Is the display common anode or common cathode?

Those displays are slightly different -> 24 pins for 3 digits, :)
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https://dannyelectronics.wordpress.com/
 

Offline Brutte

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Re: how to connect seven segment with PIC
« Reply #3 on: November 01, 2014, 11:59:39 am »
Same remark as before, cross-poster.

 

Offline ect_09Topic starter

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Re: how to connect seven segment with PIC
« Reply #4 on: November 13, 2014, 02:07:01 pm »
Well, Thanks for reply.
but didnt get the understanding yet  |O |O :scared:
 


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