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Compact ESP32 Smart Speaker Development Kit with Wi-Fi, Bluetooth, STT and Integrated Audio
The M5Stack C008-C ATOM Voice is a compact programmable smart-speaker development kit based on the ESP32 platform. Measuring just 24 x 24 x 17 mm, it integrates a microphone and speaker for audio recording, playback, and voice-interaction applications. Wi-Fi connectivity enables designated streaming-media playback and cloud-connected projects, while Bluetooth A2DP support allows compatible phones, tablets, and other devices to stream audio wirelessly to the module.
ATOM Voice also supports a speech-to-text service when the dedicated firmware is installed, enabling voice-command applications without requiring a separate audio interface. Developers can create custom voice-control and IoT solutions using Arduino, ESP-IDF, or ADF, including connections to supported cloud platforms such as AWS and Google services. An onboard SK6812 RGB LED provides connection and operating-status indication, while the GROVE port enables external sensors and peripherals to be added. A programmable button and rear M2 mounting hole further simplify integration into compact embedded systems.
Key Features
- ESP32-Based Platform: Uses the ESP32 architecture for programmable wireless audio and IoT applications.
- Compact Design: Measures only 24 x 24 x 17 mm for integration into space-conscious embedded projects.
- Integrated Microphone: Built-in microphone supports voice capture, audio recording, and speech-based applications.
- Integrated Speaker: Onboard speaker enables audio playback, notifications, and voice-response functions.
- Speech-to-Text Support: Dedicated firmware enables STT functionality for implementing voice-command applications.
- Wi-Fi Connectivity: Supports IEEE 802.11 b/g/n wireless networking for streaming and cloud-connected applications.
- Bluetooth A2DP: Supports wireless audio streaming from compatible Bluetooth devices.
- BLE 4.0 Support: Enables Bluetooth Low Energy communication with compatible devices and peripherals.
- Audio Recording and Playback: Integrated audio hardware supports bidirectional voice and sound applications.
- RGB Status LED: Onboard SK6812 RGB LED provides visual connection and system-status indication.
- GROVE Expansion: GROVE connector allows compatible external sensors, actuators, and modules to be added.
- Programmable Button: Independent onboard button can be assigned to custom user functions.
- Cloud Integration: Can be programmed for use with compatible cloud platforms and voice-based IoT services.
- Mounting Support: Rear M2 screw hole simplifies mechanical installation in enclosures and prototypes.
- Multiple Development Platforms: Supports Arduino, ESP-IDF, and ADF development environments.
Applications
- Programmable smart speakers
- Voice-control systems
- Speech-to-text projects
- AI voice interfaces
- IoT voice-control devices
- Wireless audio streaming
- Smart-home interfaces
- Cloud-connected voice applications
- Audio recording projects
- Voice-enabled robotics
- Embedded human-machine interfaces
- Interactive electronic devices
- Audio notification systems
- Prototype voice assistants
Model Size
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