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LCD and MULTIPLEXED SEVEN SEGMENT (8051)

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gurpreet312

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7 segment lcd configuration

HELLO,


I have Connected Port 0 of DATA BUS LCD and 3-MULTIPLEXED SEVEN SEGMENT.

I have used three Transistors (NPN) in Common Collector Configuration.I am using Switching Between Vcc 'for LCD and Anode of Seven Segments with Common Collectors. So,LCD and Seven Segment at works alternatively.

My Problem in THAT if i write code for LCD, Seven Segments are slightly glow
(Minor Glow)

How I solve that problem?

Gurpreet Singh
 

multiplexing seven segments

u must to send electronic sheme
 
8051+seven segment

problem is in your software routine, or in hardware design.
 
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