i will tell u the procedure
u need atleast 9 i/o pins for this project 7 for a,b,c,d,e,f,g, and two for switching one seven segement display at a time .Remember ,refereshing rate of display should be less then then 15msec to avoid flickering
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multiplexing 7 segement
i will tell u the procedure
u need atleast 9 i/o pins for this project 7 for a,b,c,d,e,f,g, and two for switching one seven segement display at a time .Remember ,refereshing rate of display should be less then then 15msec to avoid flickering
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