Bluetooth Controlled Car

Bluetooth Controlled Car — Projects, Parts & Ready Kits

Welcome to the Bluetooth Controlled Car category at Bigyan Project (বিজ্ঞান প্রজেক্ট)—your trusted hub in Bangladesh for student science fairs, robotics clubs, and DIY electronics. Explore complete kits, reliable parts, and step-by-step guides to build Android-app controlled cars using Arduino or ESP32 with HC-05/HC-06 modules.

Who Is This For?

School, college, and university students preparing science projects or Olympiad demos, hobbyists starting with robotics, and makers who want a stable Bluetooth RC platform for learning programming, electronics, and mechatronics.

What You’ll Find Here

Beginner-friendly starter kits, advanced chassis with gear motors, motor drivers (L298N, TB6612FNG), ESP32/Arduino boards, HC-05/HC-06 modules, 18650 batteries and holders, wheels and couplers, jumper wires, breadboards, switches, chargers, and tested example codes. Everything is curated to work together so you can assemble, upload code, and drive.

Why Choose Bluetooth Control?

Bluetooth offers low-latency control from your phone, easy pairing, and offline use—perfect for classrooms, fairs, and practice. It’s a practical path to learn serial communication, PWM speed control, direction logic, and mobile UI interaction without complex networking.

Project Outcomes & Skills

Students learn sensor integration, motor control, battery safety, code structure, and debugging. Typical outcomes include smooth acceleration, precise steering, obstacle response, and clean wiring practices—ideal for viva, rubric scoring, and portfolio demos.

Starter to Pro: Choose Your Path

Starter Kits

All-in-one boxes with chassis, 2/4 BO gear motors, driver board, HC-05, Arduino Uno/ESP32, battery pack, and example code. Great for first builds and quick submissions.

Upgradable Kits

Modular sets that support add-ons: line-following sensors, ultrasonic distance, encoders for speed feedback, metal gear motors, and high-capacity battery packs.

Pro Components

Pick parts individually—high current drivers, low-noise wheels, aluminum chassis, Li-ion protections (BMS), on/off rockers, fuse holders, and performance chargers.

Popular Build Styles

Classic 4-wheel drive, differential 2-wheel with castor, tracked (tank) platforms, and forklift/arm add-ons for task demos. Each style includes tested wiring diagrams and code pointers from Bigyan Project.

Recommended Controllers

Arduino Uno / Nano

Stable, easy libraries, perfect for HC-05/HC-06 serial control, PWM speed control with L298N/TB6612FNG.

ESP32

Built-in Bluetooth, faster CPU, more memory, and room to expand to Wi-Fi features later.

Software & App Control

Use simple serial apps to send forward/back/left/right/stop commands, or map custom buttons (e.g., speed steps, headlight toggle). Sample code focuses on non-blocking loops, smooth PWM ramps, and safe shutdown.

Safety & Battery Care

We emphasize correct polarity, secure solder joints, heat-shrink insulation, proper wire gauge, motor stall current awareness, and protected 18650 cells with balanced charging for reliable classroom use.

Evaluation & Presentation Tips

Include a wiring diagram, flowchart, and a short demo video. Explain how Bluetooth serial works, why TB6612FNG is more efficient than L298N, and show test results (speed vs. voltage, turning radius). These details boost grades and jury confidence.

Troubleshooting Highlights

No pairing? Check baud rate and module state. Motors jitter? Verify common ground and power capacity. Low range? Reposition the module and ensure fresh cells. Uneven steering? Match tire diameters and tune PWM.

FAQ

Can I upgrade later?

Yes. Start with basic control, then add ultrasonic sensors, line-follow arrays, encoders, or a gripper. Our upgradable kits from বিজ্ঞান প্রজেক্ট make this seamless.

Which driver should I pick?

For BO motors, TB6612FNG is compact and efficient; for higher loads or metal gear motors, consider L298N with proper heat sinking.

Is ESP32 better than Arduino?

For built-in Bluetooth and future Wi-Fi features, ESP32 is excellent. For absolute simplicity and abundant tutorials, Arduino Uno is perfect.

Why Buy from Bigyan Project (বিজ্ঞান প্রজেক্ট)?

Curated, compatible parts with student-friendly guidance, Bangla/English support, and classroom-tested examples. Our mission is to help Bangladesh’s students build confident, competition-ready projects.

Get Started Today

Pick a starter kit, follow the quick wiring guide, upload the sample sketch, and drive your first Bluetooth Controlled Car. Then iterate—improve speed control, add sensors, and present a standout science project with Bigyan Project.