This is my
Final Project - Symphoni

Symphoni is an elegant productivity assistant designed to blend function and form. Featuring a sleek display, high-quality speaker, and an NFC-based record player, it offers seamless integration with Notion, Spotify, weather updates, and stock market tracking. Symphoni reimagines productivity tools as not just useful but also a centerpiece of your workspace, combining technology with aesthetic design.

Symphoni is a retro-futuristic levitating turntable that plays music from Spotify using custom NFC-tagged records. Designed as an aesthetic centerpiece, it combines vintage charm with modern technology. Each NFC-enabled record stores a playlist ID, allowing users to trigger and modify playlists via the Spotify app. The device features built-in speakers for an immersive audio experience and a display that showcases the current song, album art, and other media like photos. The final goal is to achieve seamless levitation, making Symphoni both a functional and visually captivating music player.

Why Symphoni?

I am passionate about music, displays, and creating products that blend aesthetics with functionality. Symphoni is an opportunity for me to explore various technologies—NFC communication, Spotify integration, audio systems, displays, and levitation—while building something visually captivating. Beyond just a Fab Academy project, I see potential in refining Symphoni into a marketable product, offering a unique and artistic way to experience digital music with a retro-futuristic touch.

Target Users:

Symphoni is designed for music lovers, vinyl enthusiasts, and tech-savvy individuals who appreciate the fusion of retro aesthetics and modern convenience. It appeals to those who enjoy physical interactions with music and want a unique way to experience digital streaming. Ideal users include home decor enthusiasts, audiophiles, and creative professionals who seek a stylish, interactive music player that enhances their living or workspace.

Spiral Development

Detecting Playlist from NFC Tag
Fetching Spotify Playlist & Playing Music
Adding Built-in Speakers
Adding Display for Song Info & Media
Implementing Levitation
Final Integration & Testing

Learning Objectives

🔹 Electronics & Hardware

ESP32 GPIO, I2C, SPI, UART
NFC module (PN532/RC522) with ESP32 (SPI/I2C)
Wi-Fi connectivity & HTTP requests
Spotify API (OAuth authentication, REST API calls)
Bluetooth A2DP for external speaker playback
I2S DAC/amplifier for built-in speakers
TFT/OLED/e-paper display (SPI/I2C)
Button input handling
Electromagnetic levitation (power control, stabilization)

🔹 Software Development (C for ESP32)

ESP-IDF (Espressif IoT Development Framework)
HTTP GET/POST requests with ESP32
JSON parsing in C
MP3/AAC streaming on ESP32 via I2S
Storing NFC tag data in flash memory/SD card
GUI development with LVGL (LittleVGL)
Power optimization (deep sleep, low-power modes)

🔹 Mechanical & Enclosure Design

Fusion 360 / 3D CAD modeling
3D printing & finishing
Acoustic enclosure design
Button & rotary encoder integration
NFC tag embedding into custom records

Electronics

Symphoni Board

Symphoni Schematic PDF

Peripheral	Signal	GPIO
SPI	MISO	GPIO19
	MOSI	GPIO23
	SCK	GPIO18
RFID	SS	GPIO5
RFID	RST	GPIO13
Display	SS	GPIO14
	RST	GPIO16
	DC	GPIO17
Motor	—	GPIO27
LED	—	GPIO26
Buttons	Button 1	GPIO32
	Button 2	GPIO25
	Button 3	GPIO33
	Button 4	GPIO35