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ReSpeaker 2-Mics pHAT
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Awesome Extras
ReSpeaker 2-Mics Pi HAT is a dual-microphone expansion board for Raspberry Pi designed for AI and voice applications. This means that you can build a more powerful and flexible voice product that integrates Amazon Alexa Voice Service, Google Assistant, and so on.
The board is developed based on WM8960, a low-power stereo codec. There are 2 microphones on both sides of the board for collecting sounds and it also provides 3 APA102 RGB LEDs, 1 User Button and 2 on-board Grove interfaces for expanding your applications. Moreover, 3.5mm Audio Jack or JST 2.0 Speaker Out are both available for audio output.
Note: This product does NOT include the Pi Zero 2 board
Features
- Raspberry Pi compatible (Supports Raspberry Pi Zero and Zero W, Raspberry Pi B+, Raspberry Pi 2 B, Raspberry Pi 3 B, Raspberry Pi 3 B+, Raspberry Pi 3 A+, Raspberry Pi 4 and 5)
- 2 Microphones
- 2 Grove Interfaces
- 1 User Button
- 3.5mm Audio Jack
- JST2.0 Speaker Out
- Max Sample Rate: 48Khz
- Product number: Seeed 107100001
What's on Board
- BUTTON: a User Button, connected to GPIO17
- MIC_Land MIC_R: 2 Microphones on both sides of the board
- RGB LED: 3 APA102 RGB LEDs, connected to the SPI interface
- WM8960: a low-power stereo codec
- Raspberry Pi 40-Pin Headers: support Raspberry Pi Zero, Zero 2, Raspberry Pi 1 B+, Raspberry Pi 2 B, Raspberry Pi 3 B, Raspberry Pi 3 B+, Raspberry Pi 4 and 5
- POWER: Micro USB port for powering the ReSpeaker 2-Mics Pi HAT, please power the board to provide enough current when using the speaker.
- I2C: Grove I2C port, connected to I2C-1
- GPIO12: Grove digital port, connected to GPIO12 & GPIO13
- JST 2.0 SPEAKER OUT: for connecting the speaker with the JST 2.0 connector
- 3.5mm AUDIO JACK: for connecting headphones or speakers with 3.5mm Audio Plug
Specifications
| MIC | 2 analogue microphones |
| LED | 3 APA102 RGB LEDs |
| Raspberry Pi 40-Pin Headers | Support Raspberry Pi Zero, Raspberry Pi 1B+/2B/3B/3B+/4B/5 |
| WM8960 codec | Low-power, high-quality stereo Codec designed for portable digital audio applications |
| Software Algorithm | VAD (Voice Activity Detection), DOA (Direction of Arrival) and KWS (Keyword Search) |
| User button | 1 programmable button |
| Voice Capture Distance | 3 meters radius voice capture |
| Battery | Exclude |
| Dimensions | 65mm x 30mm x 15mm |
| Weight | G.W 33g |
Resources
Package Contents
- 1x ReSpeaker 4-Mic Array for Raspberry Pi
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