This Instrucable will show you how to get a simon says game up and running using an Arduino Uno board and a couple of other materials.

Step 1: Things You Will Need

8 resistors
4 buttons
4 LEDs
LCD 1602 module with pin header
1 Arduino Uno board
1 bread board
25 jumper wires

Step 2: Connect Your LEDs

I extended the cathode and anode in this diagram to better diagram how to wire the LEDs. You essentially want a space in between your cathode and anode and in empty space, we will put a 220 resistor connecting that space to the anode in the space next to it. Then you want to ground the cathode. Repeat this step with your other LEDs leaving about 4 spaces in between each LED

Step 3: Connecting the Buttons

This is why we left a space in between the cathode and anode of the LEDs. We are going to slot a button in between the cathode and anode of each LED with half the button on the rail in the space between the cathode and anode. Then we connect a 220 resistor from the button to the ground and a wire from the pin on the same side to the hot rail. Now we connect a wire from the pin that is in between the LED and connect that to slot 2 on the Arduino Uno board. The reason behind this complicated setup is so we can swap between input and output using the same port and without burning out our LEDs. Refer to the picture if you are confused. Repeat this with the other 3 buttons using slots 3-5 on the Arduino board.

Step 4: Connect the Potentiometer

The potentiometer is used to control the display of the LCD screen. You will need to connect the north pin to the cold rail and the south pin to the hot rail matching the diagram. Don't worry about the middle pin for now. We will connect it in the next step.

Step 5: The LCD Screen

And now we have come to the LCD screen. This screen will show the user his/her score as well as notify the user of important information. Such as correct/incorrect answers, prompts and anything else. Just slap the LCD screen on an empty spot on the bread board and connect the wires according to this list. The very far left (or in this picture, the furthest south) will be labeled as number 1.

connect to the ground rail
connect to the hot rail
connect to slot 12
connect to slot 11
connect to slot 10
connect to slot 9
do not connect
do not connect
do not connect
do not connect
connect to slot 8
connect to the ground rail
connect to slot 7
connect to potentiometer
connect to the hot rail
connect to ground rail

Step 6: Connect the Rails

Lastly, we want to make sure that both hot and cold rails are connected to each other and then connected to the ground rail and 5v on the Arduino board.