Arduino Encoder Robot Kit - Auto-Calibrating LM393 Sensors
Encoder Robot Kit with Arduino Uno: Auto-Calibrating for 1% Straight Line Accuracy
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
You'll build a two-wheeled robot that automatically calibrates its own wheel diameters using LM393 speed sensors, then drives perfectly straight lines with less than 1% deviation. The kit turns a typical 2WD chassis into a self-measuring mobile platform that compensates for motor variance, tyre wear, and floor texture - all without manual tuning. Every startup becomes a fresh calibration cycle, so your robot stays accurate across sessions.
What You'll Build
A self-calibrating mobile robot that learns its physical wheel sizes on power-up. The LM393 encoders feed pulse counts to the Arduino Uno, which computes exact wheel circumferences from a short reference movement. You'll see speed and odometry data in real time on the 0.96-inch OLED. Once calibrated, the robot holds a straight line over one metre with sub-1% lateral drift, making it a reliable base for delivery bots, mappers, or competition-grade line followers.
What You'll Learn
- Interface LM393 speed sensors with Arduino Uno to capture wheel rotations
- Implement auto-calibration algorithms that measure wheel diameters from actual displacement
- Use encoder feedback for closed-loop motor control with the L298N driver
- Display velocity, distance, and calibration status on a 0.96-inch OLED
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| LM393 Speed Sensor | 2 |
| L298N Driver | 1 |
| TT Gear Motor | 2 |
| 2WD Chassis | 1 |
| 18650 Cell | 2 |
| 18650 Holder | 1 |
| 10k? Resistors | 5 |
| 100nF Caps | 5 |
| 0.96in OLED | 1 |
| M-M Wires | 25 |
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 exploring robotics in physics practicals, B.Tech ECE/EEE learners tackling motion control assignments, and teams preparing for Smart India Hackathon or e-Yantra competitions. ATL Tinkering Labs and hobbyists at NIT, VIT, or BITS will also appreciate the precision base for line-following or maze-solving upgrades.
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 our AI companion trained on this kit; if you prefer, message us on WhatsApp for direct help.
How does the robot learn its own wheel sizes?
On power-up, the LM393 encoders measure pulses per revolution while the robot moves a short calibration distance. The Arduino computes effective wheel diameters from actual displacement, compensating for tyre compression and motor differences.
Can I use this chassis for line-following or maze-solving?
Yes, the calibrated odometry gives you a highly accurate motion base. Simply add IR sensors or a line matrix and adapt the control code to lock onto a track.
What if one wheel slips on a smooth floor?
The encoder feedback loop detects speed mismatches and can pause or adjust motor power. However, extreme slippage on polished surfaces may reduce accuracy; grippier tyres are recommended for such conditions.
LM393 encoders auto-calibrate wheel diameters on startup. Drives straight line to 1% accuracy.
What's in this kit
- Arduino Uno R3
- LM393 Speed Sensor x2
- L298N Driver
- TT Gear Motor x2
- 2WD Chassis
- 18650 Cell x2
- 18650 Holder
- 10k? Resistors x5
- 100nF Caps x5
- 0.96in OLED
- M-M Wires x25
Do you deliver across India?
Yes. We ship Arduino Encoder Robot Kit - Auto-Calibrating LM393 Sensors across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Orders ship in 1-5 days.
What payment options are available for Arduino Encoder Robot Kit - Auto-Calibrating LM393 Sensors?
We accept UPI, all major debit and credit cards, and Cash on Delivery (COD), available across India.
Built and shipped from Compoden, with COD and UPI available across India.
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