digital clock using microcontroller 89C51

[sanjay kucha]

I  make digital clock using AT89C51 and seven segment display.it can be display two ‘minute’ digite and two ‘second’ digite.but i can make digital clock that can be display two bigits of hour,minute and second.so how it can be made ? please reply…ok

[AJISH ALFRED]

Hi,

Ofcourse, it can be made using the same logic you’ve used so far.

[balaji.n]

hello

 i just raed your commands , I already finish this project with 6 seven segment display

i just add the 6 display in one 8051 port i didn,t know about hardware circuit so didn’t give the proper solution

i just give one idea

              add the display all in parallel in one port and connect common pin of the display (commaon anode or cathode)

to control bit(like use sbit) to connect another port 

we should programing flows thorugh 6 data of display in one port for control the common display control bit,if u want to more details contact my mail id:[email protected]

[AJISH ALFRED]

That’s nice.

Adding to Balaji’s post, you can connect the common pin of ssds to the output of a demux like 74138, so that you can sekect the required ssd using only three pins, upto 8 ssds.

[balaji.n]

hello  ajish

i read your post its smart idea ,its a usefull for make my projects is very compact one.

[AJISH ALFRED]

Thanks Balaji. The more we share our ideas, more ideas we get!!

[Author]

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