ReSpeaker 2-Mic Pi HAT – Dual Microphone Array for Raspberry Pi
ReSpeaker 2-Mic Pi HAT – Dual Microphone Array for Raspberry Pi
ReSpeaker 2-Mic Pi HAT – Dual Microphone Array for Raspberry Pi
Bring voice recognition and AI audio capabilities to your Raspberry Pi projects with the ReSpeaker 2-Mic Pi HAT. This compact dual-microphone expansion board plugs directly onto your Raspberry Pi's GPIO header, enabling far-field voice capture, smart speaker builds, home automation, and voice-controlled applications — all in a sleek 65×30 mm green PCB form factor.
Whether you're a hobbyist, developer, or educator, this board makes it easy to add professional-grade voice input to your single-board computer projects without complex wiring or soldering.
Key Features
- Universal Raspberry Pi Compatibility: Works seamlessly with Raspberry Pi Zero, 1 B+, 2B, 3B/3B+, and 4 Model B
- Dual Microphone Array: Two onboard MEMS microphones for improved voice pickup and directionality
- Far-Field Voice Capture: Detects voice commands from up to 3 meters away
- Onboard Audio Codec: High-quality audio processing built right in — no external sound card needed
- 2× Grove Interfaces: One GPIO and one I2C port for easy sensor and accessory expansion
- Programmable Button & LEDs: 1 user-programmable button and 3 RGB LEDs for visual feedback and custom interactions
- Plug-and-Play HAT Design: Connects via standard 40-pin GPIO header — no soldering required
- Compact & Lightweight: 65×30 mm green PCB; made from durable plastic components
Specifications
| Compatibility | Raspberry Pi Zero, 1B+, 2B, 3B/3B+, 4 Model B |
| Microphones | 2× MEMS Microphone Array |
| Far-Field Range | Up to 3 meters |
| Grove Interfaces | 2× (1× GPIO, 1× I2C) |
| LEDs | 3× Programmable RGB LEDs |
| Button | 1× User-Programmable Button |
| Dimensions | 65 × 30 mm |
| Color | Green |
| Country of Origin | Made in China |
What's in the Box
- 1× ReSpeaker 2-Mic Pi HAT Expansion Board
Note: Raspberry Pi board and other accessories are not included.
Perfect For
- DIY smart speakers and voice assistants
- Home automation and IoT voice control
- AI voice recognition projects
- Raspberry Pi audio and maker projects
- Educational STEM and electronics prototyping
For more information on electronics safety standards for consumer electronics and maker hardware, visit the U.S. Consumer Product Safety Commission (CPSC).
Learn more: Raspberry Pi Holdings
Frequently Asked Questions
Q: Is the ReSpeaker 2-Mic Pi HAT compatible with Raspberry Pi 4 Model B?
A: Yes! The ReSpeaker 2-Mic Pi HAT is fully compatible with the Raspberry Pi 4 Model B, as well as the Raspberry Pi Zero, 1 B+, 2B, and 3B/3B+. It connects via the standard 40-pin GPIO header.
Q: How far away can the dual microphone array detect voice commands?
A: The dual MEMS microphone array supports far-field voice capture of up to 3 meters, making it suitable for smart speaker and voice assistant projects where the user may not be directly next to the device.
Q: Do I need to solder anything to use this board?
A: No soldering is required. The ReSpeaker 2-Mic Pi HAT is a plug-and-play expansion board that connects directly to your Raspberry Pi's 40-pin GPIO header. Drivers and software setup can be done through the Raspberry Pi OS terminal.
Q: What are the Grove interfaces used for?
A: The two Grove interfaces (one GPIO, one I2C) allow you to easily connect additional sensors, displays, or other Grove-compatible accessories to expand the functionality of your Raspberry Pi voice project without complex wiring.
Q: What is included in the package?
A: The package includes one (1) ReSpeaker 2-Mic Pi HAT expansion board. The Raspberry Pi board and any other accessories are not included and must be purchased separately.