Electronic dice 4
74HC00, 74HC191, 74HC4511
Here's electronic dice that can display the numbers 1-6 using the display.
As you see in the schematic, the electronic dice use a counter IC to count the number of pulses, and displays the numbers 1 - 6 on the display with the aid of a decoder IC.
Two circuits are used to generate pulses. They begin generating pulses from the moment when you release S1 after pressing it, and continue generating pulses during the time determined by C1 and R1 and by C2 and R3. These two oscillators have different frequencies, and you can reproduce the natural movement of ordinary dice by staggering the pulse generating time of the two oscillators.
When you finish building this project, turn power ON and press S1. The numbers on the LED display changes swiftly and one of the numbers 1 - 6 is finally displayed.