Gesture-Controlled Arduino Robot

This project implements a gesture-controlled two-wheeled robot using an MPU6050 accelerometer and RF (433 MHz) communication modules. Hand gestures are interpreted by the transmitter Arduino and sent wirelessly to a receiver Arduino, which controls the robot's movement via motor driver outputs.

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Demo

The demo shows the gesture-controlled bot via a wired connection with the sensor.

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Features

• Independent transmitter and receiver setup using two Arduino boards
• A wired setup for when the sensor and motor driver are connected to the same Arduino
• Movement commands: forward, backward, left, right based on tilt direction
• Simple motor driver control logic with customizable speed and delay

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Repository Structure

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├── wireless_TX.ino              # Transmitter: reads MPU6050 data and sends direction commands via RF
├── wireless_RX.ino              # Receiver: receives RF commands and controls motor driver accordingly
├── wired.ino                    # For wired setup: MPU6050 and motor driver on the same Arduino
├── README.md                    # Project overview and instructions
├── demo.gif                     # Wired gesture controlled bot demonstration
├── .gitignore                   # Specifies untracked files to ignore in version control
├── LICENSE                      # MIT License for usage and distribution

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Hardware Requirements

For Wireless Setup

• 2 × Arduino Uno/Nano
• 1 × MPU6050 Accelerometer/Gyroscope Module
• 1 × RF 433 MHz Transmitter Module
• 1 × RF 433 MHz Receiver Module
• 1 × Motor Driver Module (e.g., L298N)
• 2 × DC Motors
• Jumper wires, breadboard, and power supply

For Wired Setup

• 1 × Arduino Uno/Nano
• 1 × MPU6050 Accelerometer/Gyroscope Module
• 1 × Motor Driver Module (e.g., L298N)
• 2 × DC Motors
• Jumper wires, breadboard, and power supply

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Libraries Used

Install the following libraries via Library Manager or from GitHub:

For Wireless Setup

• RH_ASK (RadioHead) – for RF communication
• MPU6050_tockn – for accessing MPU6050 data
• SPI – built-in Arduino library for RF module communication
• Wire – built-in Arduino library for I2C communication with MPU6050

For Wired Setup

• MPU6050_tockn – for accessing MPU6050 data
• Wire – built-in Arduino library for I2C communication with MPU6050

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Setup Instructions

1. Wireless Mode (with two Arduino boards)

Transmitter Setup (wireless_TX.ino)

• Connect the MPU6050 to Arduino via I2C (SDA to A4, SCL to A5 on Uno).
• Connect the RF Transmitter module to a digital pin (e.g., D12).
• Upload wireless_TX.ino to the transmitter Arduino.

Receiver Setup (wireless_RX.ino)

• Connect the RF Receiver module to a digital pin (e.g., D11).
• Connect motor driver inputs to pins 2–7 as defined in the code.
• Upload wireless_RX.ino to the receiver Arduino.
• Connect DC motors to the motor driver outputs.

Power Supply

• Power the transmitter with USB or a portable power bank.
• Power the receiver Arduino and motors using a suitable external supply (e.g., 6–12V battery).

Accelerometer thresholds for gesture detection are hardcoded in wireless_TX.ino and can be tuned as needed.

2. Wired Mode (with a single Arduino board)

• Connect both MPU6050 and motor driver to the same Arduino.
• Use I2C (SDA to A4, SCL to A5) for MPU6050, and pins 2–7 for motor driver.
• Upload wired.ino to the Arduino.
• Observe and test the gesture-based movement without needing RF modules.

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Author

Rishab Agrawal

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License

This project is licensed under the MIT License. See LICENSE for more details.