Music-Reactive Light Kit for Arduino – Sound Sensor & RGB LED Bars That Dance to Music
A sound sensor listens to music and four RGB LED bars pulse and change colour in time with the beat, in a laser-cut wooden stand.
Designed by Mematrix Lab
Description
Lights that dance to music
Play music next to this wooden stand and watch the four RGB LED bars light up with the rhythm. A sound sensor measures how loud the music is from moment to moment, and the controller turns that into moving bars and colour changes, so light and sound stay in sync. Change the code to create your own light shows.
What you'll learn
- How a sound sensor turns sound into a signal
- Controlling addressable RGB LEDs
- Mapping sensor readings to light patterns
- Combining sound and light in one program
What you'll do
- Assemble the wooden stand
- Fit the RGB LED bars, sound sensor and controller
- Connect the wires
- Play music and adjust the code for new effects
What's in the complete kit
- Laser-cut wooden stand
- Arduino UNO-compatible controller with expansion board
- Sound sensor
- 4 RGB LED bars
- Wires
- Rechargeable battery set
Good to know
- Laser-cut plywood parts, assembled with screws – no glue or soldering needed.
- Powered by USB-C (5 V) or DC 7–12 V; the complete kit includes a battery set.
- Example code is supplied by the maker, and you can program it yourself with Arduino IDE or block-based tools such as Mixly, Ardublock or Scratch.
- This kit ships by a special line because it contains servos/motors and batteries or battery holders (see the shipping note).
- Contains small parts. Not suitable for children under 8.
Specs and Docs
- Model
- HS-E05
- Size
- About 120 × 130 × 100 mm
- Parts
- Sound sensor, RGB LED bars
- Suggested age
- 10+ (beginners welcome, adult help for wiring)
Shipping
Standard shipping: $9.00 for the first item, +$1.80 for each additional item. Free shipping on orders over $260.
We ship worldwide, by default with economical international post (UPU / China Post small packet) to keep shipping costs low. Orders are usually handed to the carrier within 2–5 business days, and economical international post then takes about 10–30 business days to arrive; these are estimates, not guarantees. Delivery time depends on the destination and on postal and customs handling. If you need your order by a certain date, email us before ordering: faster shipping can be arranged, with the extra cost charged at the carrier's actual rate. Items that contain batteries or magnets are marked on their product page and ship by a special carrier line; some countries and regions cannot be reached by that line, and if yours is one of them we refund the order in full.
Batteries & magnets
This item contains, or may contain, batteries or magnets (for example in a motor, speaker or rechargeable battery). Ordinary postal parcels with such items may not pass security screening, so it ships by a special carrier line, and its price includes a $10 surcharge for this. Some countries and regions cannot be reached by this line. If yours is one of them, we will email you and refund your order in full.
Customs & duties
Import duties, taxes and customs requirements depend on the destination country, the shipping route and the local customs office, so we cannot say in advance whether any will apply to your parcel. Customs may hold a parcel, ask for more information, or ask for duties or taxes to be paid, even when the declared value is correct. If you have a question about your country, email us before ordering.
See our shipping & returns policy.