Real-Time Pitch Detection Tuner Kit with Arduino Due + LED
Real-Time Pitch Detection Tuner Kit: Arduino Due Precision Tuner with OLED Display
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
For musicians, audio engineers, and DSP enthusiasts, this kit delivers a studio-grade tuner that you assemble and program yourself. The Arduino Due samples instrument sound at 44 kHz, the YIN algorithm extracts fundamental pitch with ±0.1 cent accuracy, and a crisp OLED readout shows note, frequency, and tuning deviation. Whether you're setting up a guitar, calibrating a violin, or testing oscillator circuits, you'll own a measurement tool built around the same principles found in professional strobe tuners.
What You'll Build
You construct a self-contained, real-time pitch detector that captures audio through a MAX9814 microphone amplifier, processes the signal on the Due's 32-bit ARM Cortex‑M3 using the YIN time-domain pitch detection method, and instantly displays detected note name (A4, C#5, etc.), exact frequency, and cent error on a 0.96‑inch OLED. The unit runs continuously, reacting to pitch changes within milliseconds, and can be used for instrument tuning, vocal intonation practice, or acoustic analysis in any environment.
What You'll Learn
- Implement the YIN pitch detection algorithm from scratch on a microcontroller
- Sample analogue audio in real time at 44 kHz with Arduino Due's 12‑bit ADC
- Interface a MAX9814 electret microphone amplifier and handle gain, filtering, and DC offset
- Render dynamic text and live frequency data on a 0.96‑inch OLED via I2C, including note‑name mapping and cent‑error calculation
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Due | 1 |
| MAX9814 Mic Amp | 1 |
| 0.96in OLED | 1 |
| 10kΩ Resistors | 5 |
| 100nF Capacitors | 10 |
| PCB Prototype Board | 2 |
| 9V 1A PSU | 1 |
| Enclosure Box | 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
Final‑year B.Tech ECE/EEE students prototyping audio DSP projects for capstone or thesis work; Smart India Hackathon teams tackling real‑time signal‑processing challenges; researchers at IIT, NIT, VIT, or BITS Pilani building acoustic analysis tools; and professional musicians, sound engineers, or luthiers who want a custom, high‑accuracy tuner that can be modified for stage or studio applications.
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 in the box to open the AI companion trained on your kit; it offers real‑time code explanations, wiring checks, and debugging tips. If you still need help, WhatsApp our engineers directly — we reply within hours, not days.
Can this tuner handle any musical instrument?
Yes. The YIN algorithm reliably detects fundamental frequencies from roughly 30 Hz (low B on a 5‑string bass) to 4 kHz (C8 on a piano), covering guitar, violin, brass, woodwinds, and the human voice.
Do I need prior DSP or YIN algorithm experience?
Not compulsory. The kit includes a well‑commented YIN library and the AI companion walks you through each block. Basic familiarity with Arduino IDE and C/C++ is recommended, but the build is structured for learning.
Can I adapt the tuner for other audio analysis projects?
Absolutely. The Arduino Due’s processing headroom and the open‑source code let you repurpose the hardware for spectrum analysis, vocal pitch tracking, guitar‑pedal tuner, or even an acoustic calibration tool — modify as needed.
Arduino Due samples audio at 44kHz. YIN algorithm detects fundamental pitch to ±0.1 cent accuracy on OLED.
What's in this kit
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