Final project

The objective of my project is to create a system capable of reproducing and interpreting audio, generating a relaxing light and water show.

The hypnotic effect of the combination of music, light and water movement can serve to relax anyone, especially nervous or hyperactive people.

My idea is to make a decorative fountain with mobile jets and lights that synchronize with the music. The device analyzes the audio spectrum, to separate the audio into different frequency bands (tones), managing to synchronize the different lights and water jets with each band.

This device includes speakers to play the music.

The music is sent to this device via:

  • Bluetooth from a mobile phone.

  • Microphone, the music is sent to the device by microphone, so that it would allow to interact with live music.


SLIDE


PRESENTATION VIDEO


DEMO VIDEO

DEMO BLUETOOTH SPEAKERS OF DANCING JETS


On this link you can see in more detail the development of the project.


In the Assignment: Applications and implications you can see the proposal for the final masterpiece of the project.

The total price in material to manufacture the fountain is: 208.12 €

Component Source Price
Electronic components (Leds & Pumps board)
1 x PROTO BRD COPPER CLAD 5X4” DigiKey 1.22 €
ESP32-WROOM-32D DigiKey 4.18 €
SWITCH SLIDE SPDT 100MA 12 DigiKey 0.87 €
SWITCH TACTILE SPST-NO 0.05A 24V DigiKey 0.92 €
IC REG LINEAR 3.3V 1A SOT223-3 DigiKey 0.39 €
5 x IC Motor driver 8V-40V 8SOIC A4953ELJTR-T DigiKey 9.90 €
1 x CAPACITOR CER 1UF 50V X7R 1206 DigiKey 0.19 €
2 x CAPACITOR CER 0.1UF 250V X7R 1206 DigiKey 0.49 €
2 x CAPACITOR CER 10UF 35V X5R 1206 DigiKey 0.50 €
1 x RESISTOR SMD 10K OHM 1% 1/4W 1206 DigiKey 0.05 €
5 x RESISTOR SMD 1 OHM 1% 1/4W 1206 DigiKey 0.22 €
5 x RESISTOR SMD 0 OHM JUMPER 1/4W 1206 DigiKey 0.12 €
25 pins x CONN HEADER SMD R/A 36POS 2.54MM DigiKey 2.38 €
1 x TERM BLK 2POS SIDE ENT 3.5MM PCB DigiKey 0.51 €
Electronic components (Bluetooth Speakers board)
1 x PROTO BRD COPPER CLAD 5X4” DigiKey 1.22 €
ESP32-WROOM-32D DigiKey 4.18 €
SWITCH SLIDE SPDT 100MA 12 DigiKey 0.87 €
SWITCH TACTILE SPST-NO 0.05A 24V DigiKey 0.92 €
IC REG LINEAR 3.3V 1A SOT223-3 DigiKey 0.39 €
1 x CAPACITOR CER 1UF 50V X7R 1206 DigiKey 0.19 €
1 x CAPACITOR CER 0.1UF 250V X7R 1206 DigiKey 0.25 €
1 x CAPACITOR CER 10UF 35V X5R 1206 DigiKey 0.25 €
1 x RESISTOR SMD 10K OHM 1% 1/4W 1206 DigiKey 0.05 €
14 pins x CONN HEADER SMD R/A 36POS 2.54MM DigiKey 1.33 €
1 x TERM BLK 2POS SIDE ENT 3.5MM PCB DigiKey 0.51 €
Electronic/Electric components (Outputs, inputs,…)
5 x Mini Pumps DC 3-5V 3W Amazon 13.99 €
Adafruit I2S Stereo Decoder - UDA1334A Breakout Amazon 13.16 €
2 x Speakers, 8 Ohm, 5 W Amazon 24.80 €
Electret Microphone Amplifier - MAX4466 Amazon 13.99 €
19 x Digital LED RGB Chip LED 5V WS2812B Amazon 2.70 €
1 x Digital Amplifier Board, TPA3116D2 Amazon 6.55€
Other materials
3 meters PVC flexible pipe, inner diameter 7mm, outer diameter 9mm Amazon 10.99 €
2 x 5mm plywood sheets (60x120cm) Leroy Merlin 15.58€
1 x Deep groove ball bearings 608RS 8x22x7mm Amazon 1€
2 meters x Burlap Fabric 160cm wide Local shop 10 €
3 x Extruded polystyrene plate 125x60x4 cm LeroyMerlin 9.27€
1 x Epoxilay 102 resin Feroca 32€
1 x 100x50cm transparent acrylic sheet 5 mm thick LeroyMerlin 21.99€
Total : 208.12 €

FILES FOR MANUFACTURING

Part Manufacturing technology Material Files Development page
Dancing Jets board Circuit milling Protoboard COPPER CLAD 5X4” Dancingjets_traces(png) Assignment: Input devices
Circuit milling Protoboard COPPER CLAD 5X4” Dancingjets_outline(png) Assignment: Input devices
Programming Dancingjets_code(ino) Assignment: Output devices
Bluetooth Speakers board Circuit milling Protoboard COPPER CLAD 5X4” BTSpeakers_traces(png) Project development
Circuit milling Protoboard COPPER CLAD 5X4” BTSpeakers_outline(png) Project development
Programming Project development
Water container Composite Epoxi resin Assignment: Wildcard week
CNC milling Extruded polystyrene Part 1 of the mold to be milled (stl). Assignment: Wildcard week
CNC milling Extruded polystyrene Part 2 of the mold to be milled (stl). Assignment: Wildcard week
CNC milling Extruded polystyrene Part 3 of the mold to be milled (stl). Assignment: Wildcard week
Laser cutting Sackcloth Pdf file of the cutting pattern by folding the fabric 2 times. Assignment: Wildcard week
Upper surface Laser cutting Transparent acrylic Upper surface(pdf) Project development
3D printing PLA 4 x Upper surface support(stl) Project development
Top ornament 3D printing PLA 4 x Top ornament(stl) Project development
3D printing PLA 4 x Top ornament joints(stl) Project development
Water diffusers 3D printing PLA 4 x Simple water diffuser(stl) Project development
3D printing PLA Rotary water diffuser, Part 1(stl) Project development
3D printing PLA Rotary water diffuser, Part 2(stl) Project development
3D printing PLA Rotary water diffuser, Part 3(stl) Project development
3D printing PLA Rotary water diffuser, Part 4(stl) Project development
3D printing PLA Rotary water diffuser, Part 5(stl) Project development
3D printing PLA 5 x Nut for water diffuser(stl) Project development
Led support 3D printing PLA 19 x led holder, Part 1(stl) Project development
3D printing PLA 19 x led holder, Part 2(stl) Project development
Outer shell CNC milling Polywood 5mm outer shell, top (dwg) Project development
CNC milling Polywood 5mm outer shell, bottom (dwg) Project development
Laser cutting Polywood 5mm outer shell parts 1 (pdf) Project development
Laser cutting Polywood 5mm outer shell parts 2 (pdf) Project development
Laser cutting Polywood 5mm outer shell parts 3 (pdf) Project development

In the Assignment: Invention, intellectual property and income you can see the type of license chosen.

You are free to:

  • Share — Copy and redistribute the material in any medium or format

  • Adapt — Remix, transform, and build upon the material for any purpose, even commercially.

Under the following terms:

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.