Project Idea:
Control a robotic car using voice commands through a smartphone. This project uses Bluetooth communication to transmit spoken instructions to an Arduino-based system, which then directs the car's movements accordingly. Commands such as "forward," "left," "right," or "stop" are recognized and executed in real-time. This project is ideal for learning about wireless control, motor interfacing, and basic robotics, making it suitable for students, hobbyists, and educational demonstrations.
A Bluetooth terminal app on the smartphone converts your voice input into text-based commands and sends them to the HC-05 Bluetooth module. The module passes these instructions to the Arduino Uno, which interprets them and controls the motors via the L298N motor driver. The car moves according to the command. The system is powered by 18650 lithium-ion batteries and is completely wireless.
 
Project Description :
This project is a voice-activated robotic car built using Arduino Uno and Bluetooth technology. A smartphone acts as the voice input device, transmitting commands wirelessly to the Arduino through the HC-05 Bluetooth module. The Arduino interprets these commands and drives the car accordingly using an L298N motor driver and two or four DC motors mounted on a chassis. Power is supplied by 18650 lithium-ion batteries, making the system portable and suitable for both indoor and outdoor use. The modular wiring through jumper cables and breadboard ensures easy assembly, debugging, and future expansion.
 
Components List:
Arduino Uno
HC-05 Bluetooth Module
L298N Motor Driver
DC Gear Motors
Robot Car Chassis with Wheels
Batteries
Battery Holder with Switch
Jumper Wires
 
Features :
Voice Command Operation
Wireless Bluetooth Connectivity
Real-Time Direction Control
Supports Forward, Backward, Left, Right, Stop Commands
Battery Operated – Fully Portable
Easy to Assemble and Program
Educational and Expandable
Compatible with Android Devices
 
Project Applications :
Educational Robotics Projects - Learn programming, Bluetooth communication, and motor control in a hands-on way.
Voice-Controlled Prototypes - Build upon the base design to develop assistive tech or smart mobility devices.
Science Fairs and Exhibitions - Demonstrate interactive, voice-responsive technology in classrooms or competitions.
Assistive Technology Demonstrations - Explore potential applications of voice commands in accessibility tools.
DIY Hobby Robotics - Perfect for tech enthusiasts looking for a fun and practical Arduino project.
Engineering Practice Platform - Practice and experiment with real-world applications of microcontroller programming and system integration.
 
Shipping Dimensions :
Length: 20 cm
Width: 15 cm
Height: 10 cm
 
Weight: 750 grams
 
📦 Project Includes:
Fully assembled and tested circuit
Circuit diagram
Source code 
(For DIY KITs - only the components will be provided)
 
Project Types:
DIY KIT(Do IT YourSelf KIT) - We are providing only components in this kit for this project
DIY KIT with Code & Circuit Connections - Along with the components, you will get the Code and the Circuit Connections file to help you build the project easily.
Readymade Breadboard - We are providing fully assembled, tested and ready-made project using plug-n-play jumper wires and breadboard with all the other components, code & circuit diagram.
Readymade Soldered - We are providing fully assembled, tested and ready-made project soldered on a PCB with all the other components, code & circuit diagram.
 
Note - For some projects the code & circuit diagram may not be provided and might have to be purchased separately
 
Notes -
All the products are made by LearnElectronics India and not for re-sale.
This project is a prototype project to show/present/explain and work like to real life product. It is not a product, if you need a ready-made product then reach out to us .