Fitness Step Counter Pro Kit with Arduino Mega + Motor
Advanced Variable Stiffness Step Counter with Arduino Mega – Pro Kit
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Build a fitness step counter that goes far beyond counting strides. Two co-located 12V DC motors act in opposition to change effective joint stiffness—just like a safe robotic joint. The MPU6050 IMU measures output compliance in real time, giving you a wearable platform to explore force‑modulated impedance control.
What You'll Build
You’ll assemble a gait tracking system where FSR 402 force‑sensing resistors detect foot strikes, while dual motors co‑activate to vary joint impedance. An Arduino Mega 2560 orchestrates sensor fusion—magnetic encoders capture shaft position, INA219 modules read motor current, and the OLED displays live stiffness. The result is a tangible hardware‑in‑the‑loop demonstrator for safe human‑robot interaction.
What You'll Learn
- Implement variable stiffness control using antagonistic motor actuation
- Interface AS5600 magnetic encoders for precise angular feedback
- Fuse IMU and encoder data to estimate instantaneous joint compliance
- Correlate FSR‑triggered gait events with motor current and kinematic data
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | 1 |
| DC Motor 12V | 2 |
| L298N Driver | 2 |
| AS5600 Encoder | 2 |
| MPU6050 | 1 |
| FSR 402 | 2 |
| LM2596 Buck Converter | 1 |
| INA219 | 2 |
| 0.96in OLED | 1 |
| 100nF Caps | 15 |
| PCB Prototype Board | 3 |
| 12V 5A PSU | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
B.Tech ECE and EEE undergraduates building final‑year projects on compliant robotics, Smart India Hackathon teams prototyping safe exoskeleton joints, and postgraduate researchers at IITs, NITs, or BITS exploring variable stiffness actuators. The kit assumes comfort with Arduino programming and basic soldering.
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.
What if I get stuck during the build?
Scan the QR code on the box to launch the AI build companion; it walks you through wiring diagrams, code uploads, and calibration. Send a photo over WhatsApp and our engineers will help within hours.
Can I adjust stiffness parameters on the fly?
Yes—the OLED displays current compliance, and you can modify antagonistic motor duty cycles through the provided Arduino sketch to see real‑time stiffness changes.
Is this suitable for a final‑year engineering project?
Absolutely. The system demonstrates closed‑loop impedance control and sensor fusion, making it a solid hardware base for biomedical or robotics capstone projects.
Does the kit include schematics and sample code?
Yes. You’ll receive full circuit schematics, a documented Arduino Mega sketch, and calibration routines for the IMU and encoders.
Fitness — Two co-located motors change effective joint stiffness. IMU measures output compliance. Useful for safe robots.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items