Winding Machine Coil Counter Kit with Arduino Uno + Stepper Motor
Build a Precision Coil Winding Counter with Arduino Uno & NEMA17 Stepper Motor
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Winding a coil by hand often results in lost counts and uneven turns. This kit replaces guesswork with a motorized counter: an Arduino Uno drives a NEMA17 stepper motor, and an A3144 Hall sensor detects each rotation at a magnet target, displaying the live turn count on a crisp 0.96-inch OLED screen.
What You'll Build
You'll assemble a desktop coil winding station that automates turn counting. A stepper motor rotates a spool while the Hall sensor tracks magnet pulses, giving you a real-time count on the OLED. Perfect for rewinding transformers, building electromagnets, or experimenting with precise inductors.
What You'll Learn
- Program an Arduino Uno to control a stepper motor via an A4988 driver — adjust speed, direction, and steps.
- Interface a Hall effect sensor (A3144) to detect magnetic fields and count rotations reliably.
- Display real-time data on a 0.96-inch OLED screen using I2C communication.
- Integrate sensor feedback into a closed-loop system to stop at exact turn numbers.
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| NEMA 17 Stepper Motor | 1 |
| A4988 Stepper Motor Driver | 1 |
| A3144 Hall Effect Sensor | 1 |
| 0.96-inch OLED Display (128x64, I2C) | 1 |
| 100nF Ceramic Capacitors | 5 |
| 10kΩ Resistors | 5 |
| 12V 1A Power Supply Unit | 1 |
| 400-point Breadboard | 1 |
| Male-to-Male Jumper Wires | 20 |
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
Ideal for CBSE Class 11–12 students building physics investigatory projects on electromagnetic induction, B.Tech ECE/EEE first-years learning motor control and sensor integration, and ATL Tinkering Lab participants needing a reliable demonstration of closed-loop feedback. It also fits Smart India Hackathon hardware prototypes where precise coil winding is needed.
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 to chat with the AI companion that knows every step of this coil counter project. WhatsApp and email support are also available for questions that need a human touch.
Can I use this kit to wind coils for a specific project like a Tesla coil or transformer?
Yes, the counter works for any coil with a turns count up to 9999 (OLED display limit). You'll need to mount the magnet on the spool shaft so the Hall sensor triggers once per rotation. The stepper motor can handle spools within torque limits.
What programming knowledge do I need?
The AI companion provides ready-to-upload Arduino code, but modifying it requires basic familiarity with Arduino IDE. The project introduces stepper motor libraries and sensor reading, making it a good beginner-level program if you want to edit.
How accurate is the turn count?
The Hall sensor detects each magnet pass with no missed pulses when set up correctly. The Arduino counts reliably at stepper motor speeds up to 200 RPM, typical for winding. The OLED shows a live count that you can reset.
NEMA17 stepper counts wire turns precisely. Hall sensor confirms count on OLED display.
What's in this kit
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