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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Description

🎙️ Elevate your Raspberry Pi voice projects with pro-grade audio and style!

DUAL MIC PRECISION - Capture every word with two high-fidelity microphones designed for AI voice applications.
VERSATILE AUDIO OUTPUTS - Seamlessly connect headphones or external speakers via 3.5mm jack or dedicated speaker port.
CUSTOMIZABLE RGB LIGHTING - Enhance your project’s aesthetics and status indicators with three programmable APA102 LEDs.
EXPANDABLE GROVE CONNECTORS - Easily extend functionality with two Grove ports for sensors and modules, empowering your innovation.
PLUG PLAY RASPBERRY PI COMPATIBILITY - Supports Pi 1 B+, 2B, 3B, and 4B for effortless integration into your smart projects.

The KEYESTUDIO ReSpeaker 2-Mic Pi HAT V1.0 is a compact, low-power audio expansion board designed for Raspberry Pi models 1 B+, 2B, 3B, and 4B. Featuring two high-quality microphones, dual audio output options, and three programmable RGB LEDs, it enables advanced voice recognition and AI applications. With Grove connectors and a user button, it offers versatile extension possibilities, backed by comprehensive technical support and sample code for rapid development.

Specifications

Brand	KEYESTUDIO
Package Dimensions	12.6 x 10.2 x 1.4 cm; 10 g
Manufacturer	keyes
Series	ReSpeaker 2-Mic Pi HAT
Color	Black
Standing screen display size	1 Centimeters
Screen Resolution	1920 x 1080
Resolution	1920x1080
Processor Brand	Raspberry Pi
Processor Type	Unknown
Processor Speed	1 Microhertz
Processor Socket	Socket A
Processor Count	1
RAM Size	1 MB
Memory Technology	DDR3
Computer Memory Type	DDR3 SDRAM
Hard Drive Size	1 MB
Hard Disk Description	SSD
Hard Drive Interface	USB 2.0
Speaker Description	3.5mm audio jack and JST 2.0 speaker output for audio output
Graphics Coprocessor	Intel HD Graphics [unknown model]
Graphics Chipset Brand	via
Graphics Card Description	Integrated
Graphics RAM Type	DDR3 SDRAM
Graphics Card Interface	Integrated
Connectivity Type	Bluetooth
Wireless Type	Bluetooth
Number of HDMI Ports	1
Operating System	Linux
Are Batteries Included	No
Item Weight	10 g

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