automatic college bell

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khushbu0694

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please please help me out somebody..
i am making project named above..
and have finished shouldering of components..
but now i have problem with my coding..
here i am attaching the circuit diagram and program..
please somebody convert it and send me the HEX code of that program...View attachment 63517View attachment 63518
 
yaar in whatever section it is in.. question is question... i was in hurry so..
if anybody knows the answer then please help me out.. its very urgent...
 
How do you expect the displays to work?????
Every time you illuminate an extra pixel, the brightness will alter.
No-one is going to even start to write the code for a messy circuit like this, for less than $1,000.
 
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Since you're apparently scanning the display digits, per colin55's comment, you need to remove the 330Ω resistors from the emitters, and place seven of them in the segment lines.

ken
 
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