Reaction Time Party Game

About the project

Two players face off to see who has the fastest reaction time. A shot glass full of something nasty is primed and ready to go to the loser. When and LED lights up both players press their buttons and whoever is slower has to take the shot!

Project info

Difficulty: Easy

Platforms: Arduino

Estimated time: 1 week

License: GNU General Public License, version 3 or later (GPL3+)

Items used in this project

Hardware components

esp8266 (wemos D1 mini) esp8266 (wemos D1 mini) x 1
Micro Servo Micro Servo x 1
ssd1306 lcd (32x128) ssd1306 lcd (32x128) x 1
On-Off Power Button / Pushbutton Toggle Switch On-Off Power Button / Pushbutton Toggle Switch x 2

Software apps and online services

Arduino Arduino

Hand tools and fabrication machines

3d printer 3d printer x 1


I created this project for my youtube channel. I wanted to make a fun and simple game that anyone could pick up and play. I settled on creating a reaction time game. The display at the bottom walks players through everything and the only setup needed is putting something nasty in the shot glass. A servo automatically swings the shot glass to the loser of the game so there is no confusion about who has to take the shot!

Schematics, diagrams and documents

Circuit Diagram

CAD, enclosures and custom parts






The main code that runs the game


Some extra code that holds the images for the game as byte arrays


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