Obstacle Avoiding Robot Kit with Arduino Uno + Ultrasonic Beginner 2
Build a Self-Driving Obstacle Avoiding Robot with Arduino Uno
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Give your robot real-time perception and independent decision‑making. With an ultrasonic rangefinder continuously scanning the path ahead and a servo that sweeps to map escape routes, this robot navigates complex indoor floors without a single human command — the kind of project that transforms a breadboard into a true autonomous system.
What You'll Build
You’ll assemble and program a two‑wheeled mobile robot that drives forward until the HC‑SR04 detects an obstacle within a threshold distance. The robot stops, the servo sweeps the sensor left and right to measure clearances, and onboard logic selects the widest path to continue — all without bumping into walls or furniture. After 4–5 hours, you’ll have a fully autonomous rover that explores a room on its own.
What You'll Learn
- How ultrasonic echo pulses measure distance and how to handle sensor noise with a median filter
- Servo‑based sensor panning and mapping escape directions using sequential angle sweeps
- State‑machine logic: STOP, SCAN, DECIDE, TURN, and FORWARD driven by real‑time sensor feedback
- Motor control through L298N H‑bridge, PWM speed regulation, and differential steering for smooth turns
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| HC-SR04 | 1 |
| SG90 Servo | 1 |
| L298N Driver | 1 |
| TT Gear Motor | 2 |
| Castor Wheel | 1 |
| 2WD Chassis | 1 |
| 18650 Cell | 2 |
| 18650 Holder | 1 |
| 10kΩ Resistors | 5 |
| 100nF Caps | 5 |
| 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 and B.Tech ECE/EEE undergraduates ready for an intermediate embedded systems challenge. It’s also a go‑to choice for Smart India Hackathon prototyping, ATL Tinkering Lab mentors building autonomous rover modules, and NIT/IIT engineering clubs hosting intra‑college robotics workshops. If you’ve already blinked an LED and want to create a machine that makes its own navigation decisions, this kit takes you there.
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 kit box to activate your AI build companion. It diagnoses wiring and code errors specific to this project. You can also send photos via WhatsApp for human backup within hours.
Will my robot work on different floor surfaces?
Yes. The 2WD chassis with TT gear motors and a castor wheel handles tile, marble, and low‑pile carpet. The obstacle detection threshold can be tuned in the code for different reflectivity.
Does the AI companion assume prior Arduino experience?
It explains every line of code and each connection, but assumes you have installed the Arduino IDE and can upload a sketch. If that’s new, the companion includes a 10‑minute onboarding module.
Can I extend this project for a college competition?
Absolutely. The logic is modular — you can replace the HC‑SR04 with a lidar module, add encoders for odometry, or integrate Bluetooth for telemetry without changing the core chassis and power system.
Ultrasonic detects obstacles. Servo sweeps to find escape direction. Autonomous robot.
What's in this kit
- Arduino Uno R3
- HC-SR04
- SG90 Servo
- L298N Driver
- TT Gear Motor x2
- Castor Wheel
- 2WD Chassis
- 18650 Cell x2
- 18650 Holder
- 10kΩ Resistors x5
- 100nF Caps x5
- M-M Wires x25
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