Project Hub /Robotics & Autonomous Systems/Self-Balancing/Wireless 3D Mouse And Keyboard

Intermediate

ARDUINO

₹1,500 – ₹5,000

3 – 6 Hours

Partial Kit

Wireless 3D Mouse And Keyboard

Build a wireless 3D mouse and keyboard (HID device) that lets you control computers and smartphones by moving your hand in the air.

Originally published on ElectronicsForU

View original tutorial

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 WiFi+Bluetooth CP2102 Development Board Rs. 520.00
MPU6050 - Triple Axis Accelerometer + Gyroscope Module Rs. 438.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
Cable for Arduino Nano (USB 2.0 A to USB 2.0 Mini B) 30cm Rs. 69.00
2-Slot 18650 Holder with Protective Cover and On/Off Switch – Case Rs. 109.00
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

Selected: Rs. 0.00

We don't carry yet: Arduino Pro Mini
Arduino Leonardo / Micro

Browse all components

How It Works

The Wireless 3D Mouse and Keyboard system captures physical hand movements and button presses to control a computer or smartphone remotely. At the core of the gesture-sensing hand unit is an Arduino Pro Mini 5V 16MHz connected to an MPU6050 sensor, which measures orientation and acceleration in three-dimensional space via the I2C communication protocol. Four pushbutton switches are integrated into the circuit to handle discrete keyboard and mouse click inputs. A Bluetooth HC-05 module paired with the Pro Mini wirelessly transmits this motion and button data to a receiving module. On the receiving end, an Arduino Leonardo Pro Micro (ATmega32U4) acts as a USB Human Interface Device (HID). Because the ATmega32U4 features native USB capabilities, the Leonardo receives the wireless data streams and emulates a standard plug-and-play USB mouse and keyboard, allowing users to interact with operating systems and applications purely through spatial hand gestures.

Why Build This

Develop practical applications for wearable computing and human-computer interface (HCI) design suited for advanced engineering portfolios.

Implement wireless serial communication protocols using Bluetooth HC-05 modules for remote sensor data telemetry.

Program a microcontroller as a native USB Human Interface Device (HID) to interface physical motion directly with desktop and mobile operating systems.

Real-World Application

3D designing, virtual reality (VR), 3D holographic displays, and assistive technology interfaces for differently-abled individuals.

Skills You'll Learn

I2C sensor communication

Bluetooth serial pairing

USB HID device emulation

motion processing algorithms

hardware prototyping with jumper wires

Safety Precautions

No specific precautions noted for this build — always follow general electronics safety practices.

Technology Tags

ARDUINO

BLUETOOTH HC-05

MPU6050

WIRELESS

HID

3D MOUSE

KEYBOARD

SENSORS

Frequently Asked Questions

Why are there two different Arduino boards used in this project?

The Arduino Pro Mini on the hand unit collects sensor and button data and transmits it wirelessly, while the Arduino Leonardo (ATmega32U4) features native USB capabilities required to emulate a standard USB mouse and keyboard on your computer.

How does the computer recognize the hand movements as a mouse cursor?

The MPU6050 sensor detects spatial orientation changes, which the Pro Mini processes and sends via Bluetooth to the Leonardo receiver, which then translates those data packets into standard USB mouse and keyboard HID commands.

Can I use any Bluetooth module for the wireless connection?

This project specifically utilizes HC-05 Bluetooth modules configured for serial communication to establish a reliable wireless bridge between the hand-held controller and the receiver.

Gallery

This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.

Kitkraft Project Hub — curated from the maker community, credited at the source.

PRJ-00261