design a presettable count up timer

Thread Starter


Joined Jan 6, 2019
i need to create a presettable count up timer which can be set by the user eg the user can set any start count at 33,45 or 55 with the help of dip switches and count up to 99 then reset back to the start count . i need to use 74192 , 7segment display, 555 timer and a buzzer which will buzz when the count ends. i can use additional logic gates or flipflop as well