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PICO DSP ESP32-based Arduino audio input shield

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A new Arduino compatible audio development board will soon be launching via the Crowd Supply website offering an open source design for audio and digital signal processing (DSP) applications. The small PICO DSP board offers a fully functional feature set for audio processing on a small format breadboard friendly device, and includes audio inputs and audio outputs, a low-noise microphone array, integrated test speaker option, additional memory, battery charge management and ESD protection all on the same PCB.