🚗 Gesture Controlled Car using ESP32 Nano

This project demonstrates a wireless gesture-controlled robotic car built using two Arduino Nano ESP32 boards. A gyroscope (MPU6050) on the transmitter detects hand gestures and sends directional commands to a receiver module, which drives a motor controller to move the car accordingly.

📸 Project Overview

• Transmitter: Captures hand motion using MPU6050 and sends movement commands over serial/ESP-NOW/Bluetooth.
• Receiver: Decodes the transmitted data and drives the DC motors via an L298N or L293D Motor Driver.
• Car Chassis: Two geared motors with wheels powered by a battery pack.

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🧰 Hardware Requirements

Component	Quantity
Arduino Nano ESP32	2
MPU6050 Gyroscope	1
L298N Motor Driver	1
6V or 9V DC Motors	2
Car Chassis + Wheels	1 set
18650 Battery Pack	1
Jumper Wires	As needed
Breadboard (optional)	1

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📦 Folder Structure

📁 Folder Structure

gesture-control-car/
├── transmitter/
│   └── transmit_data.ino
├── receiver/
│   └── recieved_data.ino
├── images/
│   ├── receiver_circuit.png
│   └── full_setup.png
└── README.md

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🔌 Circuit Diagram

• Receiver ESP32-Nano is connected to an L298N motor driver to drive two DC motors.
• Transmitter ESP32-Nano is connected to an MPU6050 sensor to detect gesture directions.

📷 Circuit Diagram:

Reciever End

Transmitter End

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📜 How It Works

1. Transmitter Setup:

   • Reads pitch/roll from MPU6050.
   • Maps orientation to direction commands (FORWARD, BACKWARD, LEFT, RIGHT).
   • Sends command via serial or wireless.

2. Receiver Setup:

   • Receives command.
   • Controls motor direction and speed using the L298N driver.
   • Executes movement (e.g., FORWARD if pitch is forward).

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🚀 Installation

1. Arduino IDE Setup

• Install the ESP32 board package.
• Add libraries:
  • Wire.h
  • Adafruit_MPU6050.h
  • Adafruit_Sensor.h

2. Upload Code

• Open transmit_data.ino and upload it to the transmitter ESP32.
• Open recieved_data.ino and upload it to the receiver ESP32.

3. Wiring Guide

Transmitter:

• MPU6050 → ESP32
  • VCC → 3.3V
  • GND → GND
  • SDA → GPIO21
  • SCL → GPIO22

Receiver:

• ESP32 GPIO pins (3, 4, 5, 6, 7, 8) → L298N
• L298N OUT1/OUT2 → Motor A
• L298N OUT3/OUT4 → Motor B
• Power: 6V or 9V battery to +12V of L298N

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🎮 Gesture Mapping

Hand Tilt	Action
Forward	Move Forward
Backward	Move Backward
Left	Turn Left
Right	Turn Right
Stable	Stop

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🧠 Future Improvements

• Use ESP-NOW for wireless communication instead of UART.
• Add obstacle detection with Ultrasonic Sensor.
• Add smartphone or voice control as fallback.
• Implement speed control via tilt angle (analog mapping).

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👨‍💻 Author

Tarush Nigam
Electronics Engineering
VJTI, Mumbai

Krushna Tarde

Electronincs and Telecommunication Engineering VJTI, Mumbai

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📄 License

This project is licensed under the MIT License.