This circuit is a Random number generator with 10 LEDs (Roulette) for picking random number between 1 and 10.
You can order the PCB from here: https://www.pcbway.com/project/shareproject/Random_Number_Generator_Circuit_With_10_LEDs__Roulette_.html
Parts list:
IC 4017
IC 555
LEDs (10pcs)
Buzzer
Transistor BC557
Capacitor 0.47uF
Capacitor 100nF
Resistor 1K
Resistor 3.9M (2pcs)
Resistor 15K
Resistor 510R
Circuit:
Video:
