Measure Viscosity with Arduino Uno: Drop Time Kit for School STEM Projects

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

Drop a steel ball into liquids of different thicknesses and watch an LCD screen instantly display the viscosity value. This kit combines three IR proximity sensors with an Arduino Uno to capture fall time across known gaps, then automatically applies Stokes’ law. It turns a classic physics experiment into a precise, digital tool perfect for school science fairs, ATL tinkering labs, and CBSE physics investigatory projects.

What You'll Build

You will assemble a vertical sensing column that detects the ball's passage at three points. The Arduino reads timestamps from the DS3231 real-time clock, calculates velocity and drag, and computes the coefficient of viscosity. The result appears on a 16x2 LCD, making data collection instant and repeatable for glycerine, motor oil, or water.

What You'll Learn

• Interface multiple IR sensors with an Arduino Uno and read digital trigger signals.
• Synchronize precise timing using a DS3231 RTC module for accurate interval measurement.
• Implement Stokes' law in code to convert drop time into viscosity units (Poise).
• Display computed results on a 16x2 LCD via I2C backpack, understanding serial communication.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Perfect for CBSE Class 9–12 students preparing physics investigatory projects, ATL Tinkering Lab mentors guiding hands-on STEM activities, and school science clubs running fluid mechanics workshops. B.Tech first-year students in mechanical or electronics branches will also find it a practical introduction to sensor-based measurement systems.

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.