Project Hub /Healthcare Biomedical & Assistive/Bio-signal Acquisition (ECG/EMG/EEG)/Control Lights Through Thoughts Using EEG Based IoT Controller

Control Lights Through Thoughts Using EEG Based IoT Controller

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RASPBERRY PI

> ₹15,000

3 – 6 Hours

Partial Kit

Control Lights Through Thoughts Using EEG Based IoT Controller

Build an IoT system that uses an EEG sensor to monitor brain attention levels and control lights or appliances using your thoughts.

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.

Raspberry Pi 3 - Model B+ 1.4Ghz 64-bit quad-core Processor with 1 GB Ram (Original) Rs. 9,810.00
ESP32 WiFi+Bluetooth CP2102 Development Board Rs. 858.00
5V 1 Channel Relay Module Rs. 87.00
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

Selected: Rs. 0.00

We don't carry yet: ECG / EMG / EEG Sensor

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How It Works

The Control Lights Through Thoughts Using EEG Based IoT Controller project operates by capturing electrical brainwave signals and translating them into physical switching actions through a Raspberry Pi 5. The primary bio-signal acquisition component, the NeuroSky MindWave Mobile 2 (or OpenBCI) EEG sensor, non-invasively detects neuro-electrical activity from the user's scalp. Using its integrated Bluetooth connectivity, the headset transmits raw data packets or processed metrics—specifically attention and meditation levels—wirelessly to the Raspberry Pi running Raspbian OS. A Python script leverages the Bluez Bluetooth driver to continuously scan, pair, and read the incoming data stream from the sensor in real time. Once the Python program evaluates the incoming attention metric against a predefined threshold value, it changes the state of a General Purpose Input/Output (GPIO) pin. This GPIO pin sends a low-voltage control signal to a relay module. The relay module acts as an electrically isolated electronic switch, using the low-power signal from the Raspberry Pi to safely open or close the circuit connected to the lighting fixture, allowing the user to turn lights on or off purely through focused thought.

Why Build This

Develop cutting-edge assistive technology prototypes tailored for individuals with severe physical disabilities to regain control over their environment.

Gain hands-on experience in advanced human-computer interaction (HCI) research by integrating brain-computer interfaces with standard IoT hardware.

Explore practical smart home automation applications that rely on biometric feedback rather than traditional manual or voice inputs.

Real-World Application

Assistive technology for individuals with physical disabilities, hands-free smart home automation, and advanced human-computer interaction research.

Skills You'll Learn

Bluetooth socket programming

bio-signal data parsing

Raspberry Pi GPIO control

relay interfacing and electrical isolation

asynchronous Python scripting

Safety Precautions

Ensure proper electrical isolation when connecting low-voltage controllers to mains-powered AC lighting fixtures to avoid electric shock hazards.

Technology Tags

EEG

BRAIN-COMPUTER INTERFACE

BCI

IOT

BLUETOOTH

MACHINE LEARNING

PYTHON

SENSORS

HOME AUTOMATION

Frequently Asked Questions

Can I use any Bluetooth adapter with the Raspberry Pi 5?

While the Raspberry Pi 5 features built-in Bluetooth, an external Bluetooth adapter may be used if you experience pairing compatibility issues with the specific EEG sensor firmware.

How does the EEG sensor communicate with the Raspberry Pi?

The sensor communicates wirelessly via Bluetooth, transmitting data packets containing attention and meditation index metrics that are read by a Python script using the Bluez driver.

Is it safe to connect the relay module directly to household AC mains power?

Yes, provided you strictly follow electrical safety guidelines and ensure proper physical isolation between the low-voltage control side and the high-voltage load side to prevent electric shock.

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.

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