ESP32-C3-Lyra V2.0 is a highly integrated audio and lighting control development board that combines the powerful processing capabilities, wireless connectivity, audio, and lighting control features of the ESP32-C3 into a single platform. It provides developers with a one-stop solution for creative IoT audio and lighting applications.
Whether for commercial product development or maker projects, it enables rapid implementation of audio–lighting interaction and is an ideal choice for IoT audio and lighting applications.
Core Positioning and Architecture
| Item | Details |
|---|---|
| Product Type | Audio and lighting control development board (not a standalone module, but a fully integrated development platform) |
| Core Chip | ESP32-C3-WROOM-02 module (single-core 32-bit RISC-V processor, up to 160 MHz) |
| Memory Configuration | 4 MB external SPI Flash (optional 8 MB in some versions) |
| Wireless Capability | 2.4 GHz Wi-Fi (802.11 b/g/n) + Bluetooth 5.0 (BLE) dual-mode connectivity |
| Power Supply | USB Type-C 5V power input, supports external power supply |
2. Hardware Features in Detail
1. Audio System Components
- ECM Electret Microphone: Built-in high-sensitivity microphone for voice capture and ambient sound detection
- Audio Amplifier Circuit: Integrated Class AB audio amplifier, supports driving 8Ω / 3W speakers
- Speaker Interface: 3.5 mm audio jack for direct connection to standard speakers
- I2S Audio Interface: Supports external high-performance audio codecs for expanded audio capabilities
2. Lighting Control Interfaces
- Addressable LED Strip Interface: Supports WS2812/WS2813 and other single-wire LED strips, precisely controlled via the RMT peripheral
- RGB LED Strip Interface: Supports traditional RGB LED strips, with PWM-based color and brightness control
- LED Driving Capability: Up to 3A current output, capable of driving multiple LED strips directly
3. Expansion and Control Interfaces
| Interface Type | Function Description |
|---|---|
| IR Transceiver Module | Supports IR remote signal transmission and reception for controlling traditional appliances |
| Function Buttons | 2 user-programmable buttons (Play/Pause, Mode Switching), 1 Reset button |
| GPIO Expansion | Multiple reserved GPIO pins for connecting sensors and actuators |
| USB Type-C | Used for power, programming, and debugging, with integrated USB Serial/JTAG functionality |
4. Other Hardware Features
- On-board PCB antenna, no external antenna required
- Power indicator LED, status indicator LED, and user LED
- Overcurrent protection circuit to ensure safe operation
3. Software Support and Development Environment
1. Official Development Frameworks
- ESP-ADF (Audio Development Framework): Designed for audio applications, providing complete audio processing components (codec, effects, playback control)
- ESP-IDF (IoT Development Framework): Core development framework supporting Wi-Fi, Bluetooth, and peripheral drivers
- ESP-Skainet: Supports offline speech recognition, enabling local voice control without internet connectivity
2. Third-Party Development Support
- Supports Arduino, MicroPython, CircuitPython, and other development platforms
- Rich open-source libraries for rapid implementation of audio playback, lighting control, and Wi-Fi connectivity
- Supports OTA firmware updates for easy maintenance and feature iteration
4. Typical Application Scenarios
1. Smart Audio Broadcasting Devices
- Smart home voice assistant: Offline voice control of home appliances with voice prompts
- Industrial alarm systems: Detect abnormal conditions and play custom alarm messages
- Public announcement devices: Scheduled playback of notifications, advertisements, or background music
2. Music-Responsive Lighting Products
- Music-reactive LED strips: Automatically change color and brightness with music rhythm
- Ambient lighting controllers: Adjust lighting effects based on ambient sound or music style
- Stage lighting controllers: Low-cost lighting solutions for small stages or parties
3. Smart Home Integration Hub
- Voice control + lighting + appliance integrated control terminal
- Sound monitoring + automatic lighting system (e.g., lights turn on when sound is detected)
- IR + Wi-Fi + Bluetooth multi-protocol smart home gateway
4. Creative Electronics Projects
- DIY smart speaker with speech recognition and lighting effects
- Sound visualization devices converting audio signals into dynamic lighting patterns
- Pet interactive toys using sound and lighting to attract pets
