EEG Alpha Wave Detection Headband Kit with Arduino Nano + LED
EEG Alpha Wave Detection Headband Kit – Build a Biofeedback Brainwave Monitor
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine wearing a lightweight headband that reads your brain’s electrical rhythms and tells you in real time whether you’re in a focused or relaxed state. This kit lets you build exactly that—a single‑channel EEG headband that extracts alpha band oscillations (8–12 Hz) from a forehead electrode. By amplifying and filtering microvolt‑level signals, the system distinguishes relaxed, meditative mental states from concentrated attention, giving you a tangible biofeedback tool.
What You'll Build
You’ll assemble a functional EEG acquisition system around an Arduino Nano. A dry electrode on the forehead captures brain activity, which is amplified by a two‑stage LM358 op‑amp front‑end and digitised through a 16‑bit ADS1115 ADC. The Nano processes the signal, isolates alpha power, and drives a 0.96‑inch OLED display that shows relaxation‑vs‑focus status. All data is timestamped via DS3231 RTC and stored on a microSD card for later analysis.
What You'll Learn
- Designing a low‑noise analog front‑end for microvolt bio‑potentials
- Active bandpass filtering (8–12 Hz) using LM358 op‑amps and passive components
- I²C communication with the ADS1115 16‑bit ADC and SSD1306 OLED
- Real‑time digital signal processing (RMS energy in alpha band) on Arduino
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | x1 |
| ADS1115 16-bit ADC | x1 |
| LM358 Op-Amp | x2 |
| Electrode Gel Snap | x3 |
| DS3231 RTC | x1 |
| MicroSD Module | x1 |
| 0.96in OLED | x1 |
| 100kΩ Resistors | x10 |
| 10kΩ Resistors | x10 |
| 100nF Caps | x15 |
| PCB Prototype Board | x2 |
| EEG Headband | x1 |
| 9V Battery Snap | x1 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This advanced kit is built for B.Tech ECE, Biomedical, or EEE students tackling capstone projects or participating in the Smart India Hackathon. It’s equally suited for researchers prototyping a low‑cost neurofeedback interface and hobbyists exploring brain‑computer interfaces. If you’ve ever wanted to measure your own alpha waves and understand the neural signature of relaxation, this is your starting point.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Scan the QR code to open the AI companion, which provides interactive, step‑by‑step debugging tailored to this EEG circuit. You can also reach our engineers on WhatsApp for personal guidance.
Is the headband safe to wear for extended periods?
Yes, the device operates from a 9V battery and the electrode snaps use medical‑grade conductive gel; no hazardous voltages reach the skin. The included guide covers safe usage.
Can I view the raw EEG waveform instead of just alpha power?
Absolutely. With minor code modifications, you can stream raw ADC values over USB serial to a PC and plot full waveforms using tools like Processing or Python.
How accurate is the alpha detection compared to clinical EEG?
The analog filter bank strongly attenuates frequencies outside 8–12 Hz, giving a reliable approximation of alpha band energy. It’s ideal for biofeedback experiments, but not intended for medical diagnosis.
ADS1115 amplified single-channel EEG from forehead electrode. Detects alpha band relaxation vs focus state.
What's in this kit
- Arduino Nano
- ADS1115 16-bit ADC
- LM358 Op-Amp x2
- Electrode Gel Snap x3
- DS3231 RTC
- MicroSD Module
- 0.96in OLED
- 100kΩ Resistors x10
- 10kΩ Resistors x10
- 100nF Caps x15
- PCB Prototype Board x2
- EEG Headband
- 9V Battery Snap
- Soldering Iron
- Solder Wire
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items