Arduino Reaction Speed Tester Kit — Build Your Own Reflex Game and Measure Milliseconds

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Imagine a device that flashes an LED at random, challenging you to press a button as quickly as possible—then instantly displays your reaction time in milliseconds on a crisp 16x2 LCD. This kit turns that idea into a tangible, working project perfect for school exhibitions, family competition, or simply understanding how electronics and coding measure human response.

What You'll Build

You'll assemble a reaction speed tester on a breadboard, connecting an Arduino Uno, buttons, LEDs, and an LCD. Once programmed, it randomly triggers one of five coloured LEDs; your job is to hit the correct button, and within milliseconds the screen shows your reaction time. You can then challenge siblings or classmates to beat your best score.

What You'll Learn

• How to interface a 16x2 LCD using an I2C backpack for minimal wiring and fast setup
• Writing Arduino code that generates random LED patterns and captures precise button press timing
• Using pull-down resistors and debouncing techniques to eliminate false triggers
• Translating physical human response into measurable, real-time data displayed on a screen

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is ideal for CBSE Class 6–10 students building science projects, ATL Tinkering Lab innovators exploring Arduino, and young makers aged 10+ who want a hands-on introduction to rapid feedback electronics. It’s also a great parent-child weekend project that blends gaming with practical coding.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.