Brushless Motor Speed Governor Kit with Arduino Uno + Motor
Arduino-Based Brushless Motor Speed Governor – Maintain Constant RPM Under Any Load
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 bench-ready PID governor that keeps a brushless motor’s RPM locked to a setpoint, no matter how the load changes. The system reads speed precisely with a Hall effect sensor, computes error via a tuned PID algorithm on an Arduino Uno, and adjusts the ESC throttle in real time. It’s the same closed-loop control used in industrial drives, miniaturised for your workbench.
What You'll Build
You will wire up a complete speed regulation station: an Arduino Uno driving a 30A ESC connected to a 2204 brushless motor, with the A3144 Hall sensor feeding RPM data back into the loop. A 0.96-inch OLED displays live RPM, setpoint, and error, while the INA219 monitors current draw from a 3S LiPo. When you vary the load manually, the PID controller instantly compensates to hold speed steady—perfect for demonstrating motor dynamics or prototyping a motion control subsystem.
What You'll Learn
- Implement a discrete-time PID control loop on Arduino for precise speed regulation
- Interface an A3144 Hall effect sensor to measure rotational speed from a magnetic trigger
- Drive a brushless motor ESC using standard servo PWM signals
- Display real-time RPM, setpoint, and current on an I2C OLED and interpret INA219 power data
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| ESC 30A | 1 |
| Brushless Motor 2204 | 1 |
| A3144 Hall Sensor | 1 |
| INA219 | 1 |
| 0.96in OLED | 1 |
| 3S LiPo 1300mAh | 1 |
| XT60 Connector | 1 |
| 400-pt Breadboard | 1 |
| M-M 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 or computer science projects that demand reliable closed-loop control, B.Tech ECE/EEE first-years exploring PID and motor drives, and participants in Smart India Hackathon or ATL Tinkering Lab challenges who need a pre-validated motion control block. Hobbyists at IIT, NIT, VIT, and BITS will find it a time-saver for drone test rigs, robotics, or lab experiments.
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 access an AI assistant that knows this kit inside out, and you can also message us on WhatsApp for human guidance.
Does the kit include a LiPo battery charger?
No, the 3S LiPo must be charged with a balance charger (not included). We recommend a basic 3S balance charger sold separately.
Can I use a different brushless motor with this governor?
Yes, as long as the ESC is rated for the motor’s current and you have a Hall sensor or magnetic trigger to measure RPM. PID tuning may need adjustment.
How stable is the RPM under sudden load changes?
With proper PID tuning, the governor typically maintains RPM within ±2–5% of the setpoint, depending on the magnitude and speed of load variation.
PID governor on BLDC ESC maintains constant RPM regardless of load changes. Hall sensor feedback.
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