hey all
i have this school project
i need to make digital counter with IC 7490
and need to count from 0 to 9999 at 9999 he need to restart too 0
and option when is counting too reset. ( with button to reset agen to 0 )
hey all
i have this school project
i need to make digital counter with IC 7490
and need to count from 0 to 9999 at 9999 he need to restart too 0
and option when is counting too reset. ( with button to reset agen to 0 )
k i did it i have counter from 0 to 9999 and it restart when coems to 9999 now only need to make reset button ( option when couts to reset it by my self)
here i created digital counter from 0 to 9999
now only miss the reset button ( the option when is counting that i can reset it when ever i would like it) - dont know yet how to do it any help would be nice
On the 2nd 7490 hook pin 14 to pin 12 of 1st 7490 that should go 9, 10,11 and so on till it gets to 99 then add another 7490 and so on. If you use a 555 timer you can have it count the output pulses and do it automatically.
To reset a 7490 pins 3&4 go high. They must be grounded to count.
On the 2nd 7490 hook pin 14 to pin 12 of 1st 7490 that should go 9, 10,11 and so on till it gets to 99 then add another 7490 and so on. If you use a 555 timer you can have it count the output pulses and do it automatically.
To reset a 7490 pins 3&4 go high. They must be grounded to count.