Coil Winding Counter Kit with Arduino Uno + Sensor
Build a Precise Coil Winding Counter with Arduino Uno — Never Miss a Turn
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 coils by hand? The hardest part is keeping an exact count of wire turns — one slip and you’re guessing. This kit converts an Arduino Uno and a Hall sensor into a rock-solid digital counter that reliably increments every time the magnet on your mandrel passes the sensor. Perfect for building precise transformers, inductors, motor windings, and school science models where turn count matters.
What You'll Build
A ready-to-use tool that attaches to your coil winding setup. Mount a small magnet on the crank mandrel, position the Hall sensor, and the Arduino displays real-time turn count on a 16x2 LCD. Two tactile buttons let you reset the count instantly for each new coil. No more mental arithmetic, tally sheets, or wasted wire due to miscounts — just glance at the screen and keep winding.
What You'll Learn
- How a Hall effect sensor detects magnetic fields and outputs a digital rising edge
- Wiring an I2C LCD backpack to free up Arduino pins for the sensor
- Writing Arduino code with interrupt-based counting to capture fast turns without missing pulses
- Implementing button debouncing and a reset function for the counter
- Building a practical measurement instrument from generic electronic components
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| A3144 Hall Sensor | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| Tactile Button | 2 |
| 10kΩ Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 9V Battery Snap | 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
This kit slots naturally into CBSE Class 11-12 physics and computer science projects, ATL tinkering labs, and early B.Tech ECE/EEE mini-projects. Young makers (10+) with basic Arduino curiosity can assemble the breadboard circuit within 3 hours. It’s also a solid choice for Smart India Hackathon proof-of-concepts involving winding machines, and for hobbyists building guitar pickups, electromagnets, or custom coils.
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 connection and line of code for this kit. You can also send a photo via WhatsApp and a real expert from Compoden will guide you back on track.
Do I need a soldering iron?
No soldering at all. The kit uses a 400-point breadboard and pre-terminated male-to-male jumper wires. All components plug directly in — ideal for young learners and classroom reuse.
What if my winding speed is very fast?
The A3144 Hall sensor triggers an interrupt on every magnet pass, and the Arduino code we provide handles up to several hundred RPM reliably. For sustained very high-speed winding, the code includes simple optimizations you can tweak.
Does the kit include the magnet and mandrel?
The magnet and winding mandrel are not included because they depend on your specific setup. Any small neodymium disc magnet works, and you can attach it to a hand crank, a motor shaft, or a 3D-printed mandrel.
Hall sensor on mandrel counts wire turns. Arduino shows turn count on LCD. Reset button for new coil.
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