Build a Wearable Knee Angle Goniometer with Arduino Nano & MPU6050

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

For physiotherapy patients recovering from ACL surgery or athletes tracking knee mobility, this kit lets you build a wearable goniometer that measures flexion angle in real time and logs data to microSD with timestamps. It’s a compact, breadboard-mounted tool to visualise range of motion during rehab exercises, displayed on a bright OLED screen. Whether you’re a student creating a biomechanics project or a hobbyist exploring wearable health tech, this kit turns a simple Arduino Nano into a clinically useful device.

What You'll Build

You’ll assemble a knee-mounted sensor module using the MPU6050 accelerometer/gyroscope, wire it to Arduino Nano, and calibrate it to measure the angle between thigh and shank. The OLED displays current flexion angle, while the DS3231 RTC time-stamps readings saved to a microSD card, creating a recovery log you can review after each session. Velcro straps hold the sensor in place over the knee, and the breadboard circuit can be tucked into a pocket or pouch.

What You'll Learn

• Calibrating an MPU6050 IMU sensor to compute joint angle in real time using sensor fusion
• Interfacing multiple I2C devices (OLED, RTC) with Arduino Nano using the Wire library
• Logging timestamped sensor data to a microSD card and formatting it as a CSV file
• Designing a wearable breadboard circuit with stable power from a 9V battery and managing noise with decoupling capacitors

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Perfect for CBSE Class 11–12 students building a practical physics or computer science project, B.Tech ECE/EEE mini-projects on biomedical devices, and participants in Smart India Hackathon health-tech tracks. ATL tinkering labs and university students at IIT, NIT, VIT, or BITS exploring wearable sensor systems will find this kit a solid introduction to inertial measurement units in rehabilitation tech.

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.