The STEVAL-STWINMAV1 Microphone Array Extension adds advanced audio sensing capabilities to the STEVAL-STWINKT1B (and STEVAL-STWINKT1) SensorTile Wireless Industrial Node (STWIN) Kit for high-frequency vibration monitoring applications. The board contains four MP23ABS1 capacitive microphones with low power consumption and high signal-to-noise ratio (SNR), which are supported by a voltage regulator with very low voltage drop, low quiescent current and low noise, which is ideal for battery-powered applications such as STWIN. The expansion board is connected to the core system board via a dedicated 12-pin connector, which runs the STSW-STWINKT01 firmware with dedicated BSP drivers and application examples for testing and developing vibration monitoring in the ultrasonic frequency ranges. Special features • Differential array of 4 mm microphones each • 4x MP23ABS MEMS microphone • 4x ADCs optimized for audio • LDK130 LDO with ultra-low quiescent noise • Serial Audio Interface (SAI) digital output Note This article contains only the expansion board. Main board see accessories. https://elecena.pl/product/19563798/steval-stwinmav1-stwin-sensortile-extension-microphone-array-mp23abs1 2021-10-06 https://elecena.pl/product/19563798/steval-stwinmav1-stwin-sensortile-extension-microphone-array-mp23abs1 2023-02-06 https://elecena.pl/product/19563798/steval-stwinmav1-stwin-sensortile-extension-microphone-array-mp23abs1 2024-08-21 https://elecena.pl/product/19563798/steval-stwinmav1-stwin-sensortile-extension-microphone-array-mp23abs1 2026-02-12