button-sequences

Button sequences

I have started studying electronics recently, and I came up with a circuit made up of 2 LEDs and 3 buttons.

Here 's how it works: 2 buttons (red and blue) are connected to the LEDs (red and blue respectively). Buttons pressing pattern will be remembered and represented through the LEDs when the third button is pressed.

• Only one LED can blink at a time.
• The LED will only blink once even if the button is held down.
• The button must be released to be pressed again.
• If a button is pressed while the other button is being held down, it will be ignored.
• If two buttons are pressed simultaneously, the red button will be preferred.
• If a button is released while the other is being held down, the other 's LED will blink.
• 0 is up and 1 is down.
• The two inputs will always have the same length.

Here is an example:

Red:  "10011010"
Blue: "10110111"
#=> "RBRB"

Red:  "01001000"
Blue: "01011100"
#=> "RB"

Red:  "01101000"
Blue: "00111000"
#=> "RB"