Brainwave Binaural Beat Generator Kit with ESP32 + LED
Build Your Own Brainwave Binaural Beat Generator with ESP32 — Precision Audio Entrainment for Deep Focus and Relaxation
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3–5 days.
Unlock the full potential of your mind with a laboratory-grade binaural beat generator you assemble and program yourself. This advanced ESP32 kit outputs two independent audio channels with sub‑hertz frequency precision, enabling you to create custom brainwave entrainment sessions for heightened concentration, deep meditation, or restorative sleep. Whether you’re a biohacker researching neurofeedback or a wellness technology enthusiast, this device brings cognitive experimentation directly to your workbench.
What You'll Build
A standalone stereo audio instrument controlled by two rotary encoders and a crisp OLED display. The MCP4728 quad DAC delivers clean sine waves to the PAM8403 stereo amplifier and dual 3W speakers. You can dial in any carrier frequency and beat offset in real time, store presets for different brainwave states, and even route the signal to external gear via the 3.5mm TRS jacks. The result is a reliable, portable brainwave machine built to your exact specifications.
What You'll Learn
- Precision I²C control of a quad DAC using the MCP4728 for synchronized dual‑output audio
- Stereo amplifier integration with the PAM8403 and low‑noise power management
- Real‑time user interface design—menu navigation, parameter adjustment, and display mapping on the 0.96‑inch OLED
- Brainwave frequency science: delta, theta, alpha, beta, and gamma band protocols and their synthesis as binaural beats
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| MCP4728 Quad DAC | 1 |
| PAM8403 Stereo Amplifier | 1 |
| 3W 8Ω Speaker | 2 |
| Rotary Encoder | 2 |
| 0.96in OLED | 1 |
| 10kΩ Resistors | 10 |
| 100nF Capacitors | 10 |
| 3.5mm TRS Jack | 2 |
| PCB Prototype Board | 2 |
| Enclosure Box | 1 |
| 5V 2A Power Supply Unit | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
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
Crafted for advanced makers aged 25 and above who are serious about brainwave entrainment as a tool or research platform. Ideal for B.Tech ECE final‑year students designing cognitive interfaces, Smart India Hackathon teams prototyping neurofeedback solutions, or professionals in wellness technology. If you already have soldering experience and want to move beyond pre‑made devices to a fully customisable instrument, this kit matches your ambition.
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 chat with the AI companion trained on this kit; it covers every wiring and firmware step. For persistent issues, WhatsApp our support team for personalised help within hours.
Can I change the beat frequencies after the build?
Absolutely. The rotary encoders let you adjust carrier and beat frequencies on the fly. The open‑source firmware can be reprogrammed to add new entrainment protocols or integrate with external sensors via the ESP32’s GPIOs.
Is soldering experience necessary?
Yes, this is an advanced kit that requires soldering through‑hole components and learning to handle the MCP4728 breakout. The included soldering iron and quality solder wire are sufficient; prior through‑hole soldering skill is expected.
What brainwave states can this produce?
You can generate any stereo frequency offset from below 1 Hz (delta) to above 40 Hz (gamma). Common protocols for sleep aid, focus, meditation, and creativity are pre‑loaded, and the precise dual DAC enables lab‑grade accuracy for research-grade work.
ESP32 generates stereo binaural beats at precise frequency offsets via dual DAC output into PAM8403 stereo amp.
What's in this kit
- ESP32 Dev Board
- MCP4728 Quad DAC
- PAM8403 Stereo Amp
- 3W 8Ω Speaker x2
- Rotary Encoder x2
- 0.96in OLED
- 10kΩ Resistors x10
- 100nF Caps x10
- 3.5mm TRS Jack x2
- PCB Prototype Board x2
- Enclosure Box
- 5V 2A PSU
- 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.
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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