Arduino Reaction Game

Here is my Arduino LED Reaction game. The LCD will tell you to get ready, and then the LED will flash on randomly. You aim to click the button as fast as possible when the LED blinks. The time it took you to click the button will then be displayed on the LCD.

The parts used for this circuit are the following:

1. Arduino UNO
2. LCD with I2C Interface
3. LED
4. 10kohms Resistor
5. Push Button
6. Breadboard
7. Jumper wires - Male to Male

Ideate Process:

The process I went through to find my project idea was simple. I searched online for different types of Arduino parts to see if I could find something cool and interesting to use. Initially, I saw the Arduino sound sensor and I decided to go with that. That didn’t end up working though. The way I got my idea for this project was by looking at other people’s circuits online.

Now I have already shown my supplies which is this but I will elaborate on why I used these parts. The reason I decided to use an LCD and not the serial monitor is that I felt like it would look better and more creative. The rest of my parts though are fairly straightforward and simple to explain because they are the main idea such as the LED and Pushbutton.

Now I did not have much trouble making this circuit as it was relatively simple. The original circuit I was supposed to build had a load of problems but this one was relatively tame. The problems were:

1. The first pushbutton I used did not work
2. I couldn't get the push button to work

My solution for the first one was switching it out for the new one and it worked. For the second problem, I just had to do some rewiring and it worked!

Here is the completed circuit in person. As you can see in the video, the second the LED goes off, I rush to click the push button as fast as possible. The time it took for me to click the button is then shown on the screen.

Here is all the code I used for this circuit. The original code I found online was only for the serial monitor so I had to modify the code to include the LCD. The first part of the code is just the support for the LED. The next part defines the LED pins, button pins, and timing variables. It then displays a welcome message on the LCD. The Main loop on this does this, Displays, “Get ready,” on the LCD, waits a bit, and then turns on the LED to signal the start. It then waits until the button is pressed and then waits until it's released. It then calculates the time difference turns off the LED and shows the reaction time on the LCD for 3 seconds.