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Mico - A USB microphone based on Raspberry Pi RP2040 MCU

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Hardware

Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller has found its way into Mico, a compact USB microphone with a PDM microphone providing better quality than cheap USB microphones going for one or two dollars or even 5 cents shipped for new Aliexpress users.

The project started when Mahesh Venkitachalam (Elecronut Labs) was doing audio experiments with Machine Learning on the Raspberry Pi, and found out USB microphone dongles were extremely noisy with poor (distance) sensitivity, so he completed the project with a high-quality I2S microphone instead. He then had the idea of making his own USB microphone and found out Sandeep Mistry had already developed a Microphone Library for Pico, so he mostly had to work on the hardware that’s how Mico Raspberry Pi RP2040 USB microphone came to be.

Read more

Direct: The Mico RP2040 Microphone Is Ideal for Machine Learning Applications

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