Seeed Studio reSpeaker Dual Microphone HAT for Raspberry Pi AI And Voice Applications

Seeed Studio reSpeaker 2-Mics Pi HAT for Raspberry Pi - WM8960 Audio Codec, 2 Analog Microphones, 3 APA102 RGB LEDs, 3.5mm Audio Jack, User Button, attached with NLU software algorithms, VAD,DOA, KWS

ReSpeaker 2-Mics Pi HAT is a dual-microphone expansion board for Raspberry Pi designed for AI and voice applications. You can build a more powerful and flexible voice product that integrates Amazon Alexa Voice Service, Google Assistant, and so on.

The reSpeaker 2-Mics Pi HAT has been equipped with 2 analogue microphones and WM8960 Audio Codec, for high-definition voice capture and process, designed to be the voice user interface for Raspberry Pi Series. Attach with NLU software algorithms, it has the abilities of Voice Activity Detection, Direction of Arrival and Key Word Spotting, widely used in Voice Interaction applications. It is a fine solution for local Neutral Language Understanding.

User Manual / Datasheet / Example Codes Etc.

Features

• Voice User Interface for Raspberry Pi Series: Placed by 4 analogue microphones, which come with the Voice Interaction algorithms of VAD(Voice Activity Detection), DOA(Direction of Arrival), KWS(Key Word Spotting)
• WM8960 Audio Codec: Low power, high-quality stereo Codec designed for portable digital audio applications
• Controllable Peripherals: Provide 3 programable APA102 RGB LEDs and 1 User Button for attached Speech Recognition usage
• Easy Assembly: Simply pop up on the Raspberry Pi to use

Specifications

• MIC: 2 analog microphones
• LED: 3 APA102 RGB LEDs
  
• Raspberry Pi 40-Pin Headers: Support Raspberry Pi Zero, Raspberry Pi 1B+/2B/3B/3B+/4B
  
• 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
• JST2.0 Speaker Out
• Max Sample Rate: 48Khz
• Dimensions: 65mm x 30mm x 15mm
  
• Weight: G.W 33g
  

Application

• Voice Interaction Learning
• Secondary software Development
• Voice-based remote control cars

Package Includes

• 1x reSpeaker 2-Mics Pi HAT

Hardware Overview

• 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 SPI interface
• WM8960: a low power stereo codec
• Raspberry Pi 40-Pin Headers: support Raspberry Pi Zero, Raspberry Pi 1 B+, Raspberry Pi 2 B , Raspberry Pi 3 B and Raspberry Pi 3 B+
• POWER: Micro USB port for powering the ReSpeaker 2-Mics Pi HAT, please power the board for providing 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 speaker with JST 2.0 connector
• 3.5mm AUDIO JACK: for connecting headphone or speaker with 3.5mm Audio Plug