Low cost prototype boards:https://www.pcbway.com/project/pcba_f...
Schematic and source code you can download here:
https://learn.sparkfun.com/tutorials/...
For making this simon says led game with arduino I have used
Arduino nano,4 tact switches,4 color leds,4 resistors 200-400ohms
a piezoelectric buzzer and universal prototype board.
How to Make LED Game Gadget - Pcbway ─ American Hacker
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