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ReSpeaker Lite with XIAO ESP32S3
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The ReSpeaker Lite comes with a pre-soldered XIAO ESP32S3 controller via I2S pins, providing an easy and solder-free setup to simplify your development and integration process.
Equipped with a dual microphone array, the ReSpeaker Lite does a great job with capturing far-field speech and voice up to 3 meters away, even in noisy environments. The two digital microphones work together to cancel out point noise, providing clear voice capture from a distance. For power and data transmission, there is a USB-C connector on the board.
Powered by the XMOS XU-316 AI sound and audio chip, this kit supports onboard AI algorithms for Natural Language Understanding (NLU). It also has Interference Cancellation, Acoustic Echo Cancellation, Noise Suppression, and Automatic Gain Control (AGC) which helps provide great voice recognition and clarity.
It is fully compatible with open-source platforms like Arduino, PlatformIO, MicroPython, and CircuitPython, giving you endless possibilities for further development in many projects!
If you'd like to add a speaker to the board to listen to anything you've recorded, click here to find one in our shop
Note: This kit comes with the XIAO ESP32S3 already soldered on
Features
- Pre-Soldered ESP32 Controller: A powerful XIAO ESP32S3 is pre-soldered via the I2S pins, offering a solderless experience for further development and integration.
- Dual Microphone Array for Far-Field Voice Capture: The 2 high-performance digital microphones capture and extract far-field speech and voice (up to 3 meters) even in noisy environments as they cancel point noise using two microphone inputs.
- AI NLU Algorithms: Powered by XMOS XU-316 AI sound and audio chip, the kit includes Natural Language Understanding algorithms for Interference Cancellation (IC), Acoustic Echo Cancellation, Noise Suppression, and Automatic Gain Control (AGC), enabling high-quality voice capture.
- Embracing Open Source: It's compatible with Arduino, PlatformIO, MicroPython, and CircuitPython for further development.
- Compatible with Popular Voice Assistants: This kit allows you to build your own natural language processor and connect it to Home Assitant via ESPHome, Amazon Alexa Voice Service, Google Assistant, or Cloud Speech-to-Text service, enabling you to ask questions and issue voice commands to your programs.
- RGB LED: The kit features a programmable WS2812 RGB LED, supporting custom effects and offering a visual interface for your projects.
- Product number: Seeed 110061601
What's on Board
| 1 | Dual Microphone Array | Provides high-quality audio input. |
| 2 | Power Indicator Light | Illuminates when powered on. |
| 3 | RGB Light | Programmable WS2812 provides visual feedback. |
| 4 | Mute Indicator Light | Lights up red when the mute button is pressed. |
| 5 | USR Button | User-defined button. |
| 6 | Mute Button | Mutes audio input when pressed. |
| 7 | XIAO ESP32S3 | For further development and integration. |
| 8 | XU316 Core Processor | Responsible for audio processing and transmission. |
| 9 | External Power Supply Solder Pad | Supports external 5V power supply. |
| 10 | USB Type-C Port | For power and data transmission. |
| 11 | Speaker Connector | For audio output. Supports 5W amplifier speakers. |
| 12 | 3.5mm Headphone jack | Output audio, We can plug active speakers or headphones into this port. |
| 13 | External power pad 1 | Unused IO pins on the XIAO ESP32. |
| 14 | External power pad 2 | Unused IO pins on the XU316. |
| 15 | JTAG | For debugging and programming the XU316. |
Specifications
General
| Core Chip | XMOS XU316 |
| Digital Microphones | 2x High-Performance Digital Microphones |
| Sensitivity | -26 dBFS |
| Acoustic Overload Point | 120 dBL |
| SNR | 64 dBA |
| Power Supply | USB 5V, External 5V |
| Dimensions | 35 x 86 mm |
| Audio Output | Speaker Connector / 3.5mm Headphone Jack |
| Maximum Sampling Rate | 16Khz |
| Speaker | Supports 5W Amplifier Speakers. |
XIAO ESP32S3
| Processor | ESP32-S3R8 |
| Xtensa LX7 dual-core, 32-bit processor running up to 240 MHz | |
| Wireless | Complete 2.4GHz WiFi subsystem |
| BLE: Bluetooth 5.0, Bluetooth mesh | |
| On-chip Memory | 8M PSRAM & 8MB Flash |
| Interface | 1x UART, 1x IIC, 1x IIS, 1x SPI,11x GPIO(PWM), 9x ADC, 1x User LED, 1x Charge LED |
| 1x Reset button, 1x Boot button | |
| Dimensions | 21 x 17.5mm |
| Power | Input voltage (Type-C): 5V |
| Input voltage (BAT): 4.2V | |
| Circuit operating Voltage (ready to operate): | |
| - Type-C: 5V@19mA | |
| - BAT: 3.8V@22mA | |
| Charging battery current: 100mA | |
| Low Power Consumption Model | Modem-sleep Model: ~ 25 mA |
| Supply Power: 3.8V | Light-sleep Model: ~ 2mA |
| Deep Sleep Model: ~ 14 μA | |
| WiFi Enabled Power Consumption | Active Model: ~ 100 mA |
| BLE Enabled Power Consumption | Active Model: ~ 85 mA |
| Working Temperature | -40°C ~ 65°C |
Resources
- Product Wiki
- I2S Firmware Download
- Product-Brief of XMOS XU316
- ReSpeaker Lite Voice Assistant Kit with XIAO ESP32S3 - CE certifications
- ReSpeaker Lite Voice Assistant Kit with XIAO ESP32S3 - FCC certifications
Pinout
Package Contents
- 1x ReSpeaker Lite Voice Assistant Kit
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