ReSpeaker has released its 4-Microphone Raspberry Pi HAT (Hardware Attached on Top), a quad-microphone expansion board for Raspberry Pi which has been designed for AI assistant and voice applications.
SunFounder Fusion HAT+ for Raspberry Pi 5/4/3B+ and Zero single board computers is a motor control and GPIO expansion board ...
Raspberry Pi enthusiasts may be interested to know that hardware manufacturers ReSpeaker have created a new quad microphone expansion board specifically designed for the range of Pi mini PC systems.
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