Where is the driver info? The vendor's page seems devoid of configuration information.

It can be tricky. Even with their information, it's only easy if you revert back to one of their supported kernel versions. It works well when properly installed, but in my case I did not want to go back to a prior kernel so I downloaded the kernel code and cross compiled the drivers on my linux system. https://github.com/respeaker/seeed-voicecard There is information on the Seeed wiki

I downloaded the seeed-voicecard files but the mic still isn't showing up (arecord -l and aplay -l). how can i get the rpi 3 b+ to recognize the mic?

You might need to clone the git repository and run the installer script, which will recompile the kernel if it's not working on the default kernel. This is what I had to do, and then everything worked for me.

Does the 3.5mm Jack support microphone in as well as speaker out?

The 3.5mm Jack only supports speaker out. But the MIC-L and MIC-R support microphone in.

Does it need separate power it works with the Raspberry pi power itself?

Pi powered. No external required.

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KEYESTUDIO ReSpeaker 2-Mic Pi HAT V1.0 for Raspberry Pi 4/4B, Raspberry Pi 3 3B+/2 2B

KEYESTUDIO ReSpeaker 2-Mic Pi HAT V1.0 for Raspberry Pi 4/4B, Raspberry Pi 3 3B+/2 2B

Product ID: 93580856

Details

Brand
KEYESTUDIO
CPU Model
Unknown
CPU Speed
1 MHz
Graphics Card Description
Dedicated
Graphics Coprocessor
Integrated
Memory Storage Capacity
1 TB

🎤2 high-sensitivity mics

💡3 APA102 RGB LEDs

🔌Dual Grove connectors

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Description

🎙️ Elevate your Raspberry Pi with voice-powered brilliance!

SEAMLESS EXPANSION - Two Grove connectors let you effortlessly integrate sensors and modules.
VIBRANT VISUAL FEEDBACK - Three programmable RGB LEDs add dynamic status indicators and style.
PLUG PLAY AUDIO OUTPUT - 3.5mm jack and speaker pins provide versatile sound output options.
CRYSTAL CLEAR VOICE CAPTURE - Dual microphones ensure precise sound pickup for flawless AI interaction.
BROAD RASPBERRY PI COMPATIBILITY - Works flawlessly with Pi 2, 3, and 4 models for ultimate flexibility.

The ReSpeaker 2-Mic Pi HAT V1.0 is a compact, low-power audio expansion board designed for Raspberry Pi models 2, 3, and 4. Featuring two high-quality microphones, three programmable RGB LEDs, and dual Grove connectors, it enables developers to build advanced voice-controlled AI applications with versatile audio input/output options.

Specifications

ASIN	B07H3T8SQY
Additional Features	Microphone
Aspect Ratio	16:9
Best Sellers Rank	#482 in Single Board Computers (Computers & Accessories)
Brand	KEYESTUDIO
Built-In Media	Audio Output Interface, Microphones
Color	Black
Compatible Devices	Raspberry Pi
Connectivity Technology	GPIO, I2C, USB
Cooling Method	Fan, Passive
Customer Reviews	4.3 4.3 out of 5 stars (221)
Display Resolution Maximum	1920x1080
Display Type	LED
Graphics Card Interface	Integrated
Graphics Coprocessor	Integrated Graphics
Graphics Description	Dedicated
Graphics Ram Type	DDR3 SDRAM
Hard Disk Description	SSD
Hard Disk Interface	USB 2.0
Hardware Interface	USB
Human-Interface Input	Buttons, Microphone
Item Weight	0.01 Kilograms
Keyboard Layout	QWERTY
Manufacturer	keyes
Memory Storage Capacity	1 TB
Model Name	ReSpeaker 2-Mic Pi HAT
Model Year	2019
Native Resolution	1920 x 1080
Operating System	Linux
Personal Computer Design Type	Barebone
Power Plug Type	Type B - 3 pin (North American)
Processor Brand	AMD
Processor Count	1
Processor Series	Unknown
Processor Socket	Socket A
Processor Speed	1 MHz
RAM Memory Technology	DDR3
RAM Type	DDR3 SDRAM
Resolution	1920 x 1080
Screen Size	1 Centimeters
Speaker Description	Includes basic speakers
Speaker Type	External
Specific Uses For Product	AI Assistants, Voice-Activated Applications
Style Name	Pi HAT
Total Expansion Slots Quantity	1
Total Number of HDMI Ports	1
Total Usb Ports	4
UPC	606184533558
Unit Count	1.0 Count
Video Output	USB
Video Output Interface	USB
Video Processor	via
Wireless Compability	Bluetooth
Wireless Network Technology	Wi-Fi
Wireless Technology	Bluetooth

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8767 Ft

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hungary.

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