Bass Drop Detector Kit with Arduino Uno + Relay
Build a Bass-Activated DJ Strobe Light with This Arduino Uno & Relay Kit
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Turn any music track into a pulsating light show. The Bass Drop Detector Kit senses deep bass frequencies using a sensitive MAX9814 microphone and instantly triggers a relay to flash high-brightness LEDs in sync with the beat — perfect for home DJ setups, parties, or just impressing friends with your custom light effects.
What You'll Build
A standalone, sound-activated strobe light that reacts specifically to bass drops and kick drums. Mount the LEDs around your speaker grill or inside a translucent enclosure, connect to any audio source, and watch the lights dance to the rhythm. The relay can also control larger lights or a small fog machine for more dramatic effects.
What You'll Learn
- How to capture and process audio signals using an electret microphone amplifier
- Real-time bass frequency detection with Arduino and peak envelope analysis
- Relay integration to safely switch high-power loads from a low-voltage microcontroller
- Tuning sensitivity and timing to reliably distinguish bass drops from background noise
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| MAX9814 Mic Amp | 1 |
| 5V Relay Module | 1 |
| 5mm White LED | 5 |
| 1N4007 Diode | 5 |
| 10kΩ Resistors | 5 |
| 100nF Caps | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 9V Battery Snap | 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
Designed for intermediate makers aged 15 and up, this kit fits CBSE Class 11-12 physics and computer science practicals, B.Tech ECE/EEE mini project requirements, Smart India Hackathon audio innovations, and ATL Tinkering Labs exploring real-world signal processing. It's also a rewarding weekend project for university students from IIT, NIT, VIT, or BITS Pilani looking to add a custom light show to their hostel room.
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 included in the box to access our AI build companion, which provides step-by-step debugging specific to this circuit. If you still need help, message us on WhatsApp — a real electronics engineer will respond within a few hours.
Can I use this kit with a guitar or live music?
Absolutely. The MAX9814 microphone picks up any acoustic sound. For instruments, place the mic near the sound hole or amplifier speaker. The sensitivity knob lets you fine-tune the triggering level so even a single note can fire the strobe.
How loud does the music need to be for reliable triggering?
You can adjust the onboard gain of the MAX9814 from 40dB to 60dB, plus the Arduino code includes a threshold variable. Even a phone playing at moderate volume in a quiet room will trigger the relay once calibrated. A small trimpot on the mic board makes physical level adjustments easy.
Can I replace the white LEDs with a high-power strobe or bulb?
Yes. The 5V relay module can switch up to 10A at 250V AC, so you can safely control a mains-powered strobe light, disco ball, or fog machine. Just connect the load through the relay’s NO and COM terminals. The kit includes 1N4007 diodes to protect against flyback voltage if you use inductive loads.
MAX9814 mic detects bass frequency energy spike and triggers a strobe relay for DJ effect.
What's in this kit
- Arduino Uno R3
- MAX9814 Mic Amp
- 5V Relay Module
- 5mm White LED x5
- 1N4007 Diode x5
- 10kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x20
- 9V Battery Snap
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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