Sound Wave Dancers is a twist on the typical Kundt’s Tube science experiment where standing sound waves within a tube cause small objects to “levitate” in a pattern indicating the nodes. In the version I have created, two frequencies are generated, one fixed and one adjustable. As the frequencies mix (beat) together, the “levitated” beads do a “dance” to the beat. Dramatic lighting and colored beads add visual appeal.
The two tones are generated by an Arduino Uno which also drives a LCD display which shows the frequencies. The user adjusts the frequency via an encoder wheel. A small amplifier in the control box powers the two speakers (one on each end of the tube). Blue lighting sets off the florescent beads within the tube and creates a unique “lava” effect. While the sound is quite loud inside the tube, the chamber is sealed and the noise is quite moderate when operating.
This exhibit was built by me in my garage and “lab”. It involved woodworking, metal machining, electronics, and software.
This piece is currently on display at the Exploration Station in Grover Beach, CA
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Maker Business — How 3M is able to ramp up production of N95 masks
Wearables — Flip UV on its head
Electronics — To Y5V or not to Y5V?
Biohacking — Vitamin-C + Gelatin for Accelerated Recovery
Python for Microcontrollers — Virtually Maker Faire, HackSpace Magazine, and more! #Python #Adafruit #CircuitPython @circuitpython @micropython @ThePSF
Adafruit IoT Monthly — Quarantine Clock, Smarter Than your Speaker, and More!
Microsoft MakeCode — Arcade Mini Game in a Text Adventure
No comments yet.
Sorry, the comment form is closed at this time.