Electro-Acoustic Zither Variant 9 Kit with Arduino Mega
Build a Velocity-Sensitive Electro-Acoustic Zither with Arduino Mega
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Strum a string, press harder, and hear the sample play louder. This kit transforms an Arduino Mega into a touch-sensitive musical instrument, where six FSR (Force Sensitive Resistor) strips beneath the zither’s strings detect your finger pressure and trigger velocity-matched audio samples from a DFPlayer Mini. Ideal for music technology projects, interactive sound installations, or mastering sensor-driven audio design.
What You'll Build
You’ll assemble a functional electro-acoustic zither that reads finger pressure across six strings using FSR sensors, processes the signals with an Arduino Mega, and outputs velocity-responsive audio samples through a PAM8403 amplifier and speaker. The final instrument responds to your touch dynamics in real time, blending art and electronics. Every component — from the FSR 402 strips to the 9V power supply — is included and pre-selected for seamless integration.
What You'll Learn
- Calibrating FSR sensors for precise pressure-to-voltage conversion
- Mapping analog sensor data to MIDI-like velocity values for sample playback
- Integrating DFPlayer Mini with Arduino Mega for multi-sample audio projects
- Designing noise-free analog signal paths with capacitors and proper grounding
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega | 1 |
| FSR 402 | 6 |
| DFPlayer Mini | 1 |
| MicroSD 8GB | 1 |
| PAM8403 Amp | 1 |
| 3W 8Ω Speaker | 1 |
| 10kΩ Resistors | 10 |
| 100nF Caps | 10 |
| PCB Prototype Board | 2 |
| 9V 1A PSU | 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
B.Tech ECE/EEE students building semester projects in embedded audio or sensor interfaces. Smart India Hackathon participants aiming for innovative music-tech solutions. Hobbyists and artists creating interactive musical installations at IIT/NIT/VIT technology festivals. This advanced kit expects basic soldering and Arduino familiarity.
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, which has step-by-step debugging for this specific zither. You can also reach us on WhatsApp for direct assistance.
Can I replace the samples on the MicroSD card?
Absolutely. The DFPlayer Mini reads standard .wav or .mp3 files from the MicroSD card. Simply load your own 16-bit, 44.1kHz mono audio files and map them to the corresponding sensor triggers.
Do I need to know soldering beforehand?
The kit includes a soldering iron and assumes basic soldering skills. Our AI companion provides step-by-step soldering guidance, but practice on the prototype boards first if you’re new.
What if the FSR sensors don’t register pressure accurately?
Our AI companion includes calibration routines: you’ll adjust resistor values and write code to set thresholds for each FSR, ensuring consistent velocity response. You can also reach us on WhatsApp for troubleshooting.
FSR strips under zither strings measure touch pressure and trigger DFPlayer sample with matching velocity.
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.
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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