This project provides an ESP32 based music box with the following features:
- Simple 3-button control
- MP3 playback
- Integration with I2C RFID tag scanner
- Support for WiFi Grids with auto-reconnect to nearest access point
- MQTT status reporting / remote control
- Home Assistant integration with device autodiscovery
- Web-based user interface
- Integrated into your local network with SSDP / mDNS protocol
- WebDAV support for file / content management
- Optional Bluetooth A2DP output / Bluetooth Headphone output
- Special mode to start in Bluetooth Speaker mode, so it works as a Boombox.
- 3-band equalizer
- ESP32 (tested with Lolin D32 Pro with a lot of PSRAM recommended (8 MB), 4MB flash RAM is required)
- PN532 RFID Reader (i2c-Mode)
- SDCard Reader (SPI-Mode), is already mounted on a Lolin D32 Pro board
- NeoPixel / WS2812 based LEDs for status visualization
The KiCad 9.0 project is located in the kicad folder.
Here is the wiring schematic drawing:
Status visualization with LEDs:
- Boot-Sequence - LEDs enabled step by step to visualize boot progress
- Leds cycling in brightness - orange in case WiFi is not connected but enabled, green in case if playback paused or no playback yet
- Leds green from 0% to 100% filling the circle - Playback progress while playing something
- Leds blinking red - Unknown RFID card detected
- Leds blinking green - RFID card programmed / Known card detected
- Leds green to red - While changing volume
- Keep button 1 pressed during startup. Leds will turn blue to indicate Bluetooth Speaker mode.
- Yellow flashing LEDs indicate a Bluetooth pairing request while in Speaker mode. Press button 1 again to confirm the pairing. LEDs will flash in blue to confirm pairing
- Keep button 1 and button 2 pressed during playback to start from beginning