Build an ESP32CAM Robot Car

Parts You'll Need

This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.

ESP32 CAM WiFi Module Bluetooth with OV2640 Camera Rs. 810.00
USB to UART/ESP8266 Adapter Programmer for ESP-01 WiFi Modules with CH340G Chip Rs. 99.00
L298N Dual H-Bridge Motor Driver Module – 2A Rs. 195.00
3–6V R140 DC Motor (High-Speed DIY & Toy Motor) Rs. 49.00
110 RPM Single Shaft BO Motor – Straight Rs. 99.00
1200mAh 18650 Li-ion Bat – Reliable 3.7V Power Cell Rs. 129.00
LM2596 Step Down DC-DC Buck Converter Rs. 99.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality Rs. 89.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi Rs. 139.00
Jumper Wire 10 Pin Male To Female 20cm Rs. 45.00

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How It Works

The ESP32CAM Robot Car operates as a wireless, web-controlled robotic platform powered by 18650 batteries. The core of the system is the ESP32CAM module, which features an integrated camera and Wi-Fi capabilities, allowing it to host a custom web server for streaming video and receiving movement commands. Because the ESP32CAM operates on 3.3V logic and requires programming via an FTDI Adapter, code compiled in the Arduino IDE using the ESP32 Board Support Package is flashed directly onto the microcontroller. To move the vehicle, the ESP32CAM sends control signals to a TB6612FNG H-Bridge Motor Driver. This motor driver safely bridges the voltage gap between the low-power microcontroller logic and the higher power required by the DC motors included in the Robot Car Chassis Kit. Power regulation is managed by an adjustable buck converter, which steps down the raw voltage from the 18650 batteries to stable levels for the logic components. An external antenna enhances the Wi-Fi range of the ESP32CAM, ensuring reliable video streaming and teleoperation. All auxiliary wiring, connections, and power distribution are organized and mounted on a custom perfboard, tying the power supply, motor driver, and microcontroller together into an integrated, mobile IoT system.

Why Build This

Develop practical undergraduate-level competencies in wireless Internet of Things (IoT) system integration and embedded web servers.

Gain hands-on engineering experience interfacing microcontrollers with high-current motor drivers and DC motors.

Implement real-world first-person view (FPV) teleoperation and mobile robotic surveillance systems.

Real-World Application

Teleoperation, remote surveillance, educational robotics, and wireless IoT camera platforms.

Skills You'll Learn

Wireless video streaming

motor driver integration

DC motor control

power regulation

microcontroller programming

schematic implementation on perfboard

web-based remote control interface development

Safety Precautions

Ensure correct voltage levels (3.3V logic versus 5V/battery power) to avoid damaging the ESP32CAM module.

Technology Tags

ESP32CAM

WIFI

ARDUINO

C++

TB6612FNG H-BRIDGE

MOTOR DRIVER

FPV CAMERA

ROBOTICS

Frequently Asked Questions

Why is an FTDI adapter required if the ESP32CAM has Wi-Fi?

The ESP32CAM module lacks a built-in USB-to-serial converter chip on board. An external FTDI adapter is necessary to connect the module to a computer via USB for flashing the initial Arduino sketch.

Can I power the ESP32CAM and the DC motors from the same power source?

Yes, the 18650 batteries can supply the system, but you must use the adjustable buck converter to step down and regulate the voltage properly. Connecting high-current motors directly to the microcontroller logic pins will permanently damage the ESP32CAM.

How do I access the camera feed and control the robot?

Once the custom Arduino sketch is running and the ESP32CAM connects to your local Wi-Fi network, you can access its interface by entering the module's IP address into a standard web browser on a computer or smartphone.