With this buttongame you can test your reaction.
What you need:
1x Arduino Uno
1x Buzzer (5V)
3x LED (I used the color blue, but you can pick your own colour/colours)
1x MDF (or other material you want to use to build your housing)
Step 1: Connecting Components
Solder the components on a breadboard. Make sure the buttons and the LEDs are alligned.
Attach the wires to the Arduino Uno and you're good to go :)
Step 2: Coding
Step 3: Create Housing
The material I used is MDF.
Bottom/Top plate : 10cm x 15 cm
Side Plate : 13,3cm x 5,2cm
Front/Back Plate : 7cm x 5.2cm
Cut in a rectangle inside the bottom and top to insert the sides and front/back plates. Polish the edges of the plates to make them fit perfectly.
Drill holes for the LEDs, Buttons and the Arduino Port.
Drill 4 holes to insert long screws for sturdiness. Add 4 rubber cap to avoid scratch marks on your surface.
Step 4: Test Your ReactionTester!
Congratulations! Now you've got your own Reaction Tester!