60 lines
1.7 KiB
Markdown
60 lines
1.7 KiB
Markdown
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---
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name: ReSpeaker 4 Mic Linear Array
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class: board
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type: audio
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formfactor: HAT
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manufacturer: seeed
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description: 4 mic linear array for Raspberry Pi to build AI and voice applications
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url: http://wiki.seeedstudio.com/ReSpeaker_4-Mic_Linear_Array_Kit_for_Raspberry_Pi/
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buy: https://www.seeedstudio.com/ReSpeaker-4-Mic-Linear-Array-Kit-for-Raspberry-Pi-p-3066.html
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image: 'respeaker-4-mic-linear-array.png'
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pincount: 40
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eeprom: no
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power:
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'2':
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'4':
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'17':
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ground:
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'6':
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'9':
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'14':
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'20':
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'25':
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'30':
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'34':
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'39':
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pin:
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'3':
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mode: i2c
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'5':
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mode: i2c
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'12':
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mode: i2s
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'19':
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mode: i2s
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'35':
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mode: i2s
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'38':
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mode: i2s
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'40':
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mode: i2s
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'32':
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name: GP12 pin 4
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'33':
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name: GP12 pin 3
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-->
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# ReSpeaker 4 Mic Linear Array
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This HAT comes with 4 microphones and is designed for AI and voice applications; integration with Amazon Alexa Voice, Google Assistant, and so on. It consists of two boards: the voice accessory HAT, and the four microphone linear array. It supports 8 input and 8 output channels in Raspbian/Raspberry Pi OS. The first 6 input channels are for microphone recording. Only the first 4 input channels are valid capture data, the remaining 2 input channels are an echo channel for playback. The first 2 output channels output stereo audio, the remaining 6 are unused.
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## Features
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* MIC: 4 Microphones
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* AC108: 2 4-channels ADC
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* AC101: a 2-channels DAC
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* Raspberry Pi 40-Pin Header
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* I2C: Grove I2C port, connected to I2C-1
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* GP12: Grove digital port, connected to GPIO12 & GPIO13
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* JST 2.0 SPEAKER OUT: for connecting speaker with JST 2.0 connector
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* 3.5mm AUDIO JACK: for connecting headphone or speaker with 3.5mm Audio Plug
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