PDM library - using with nRF52840https://devzone.nordicsemi.com/f/nordic-q-a/55227/pdm-library---using-with-nrf52840I&#39;m using SDK 16.0.0. I wish to use two MEMS microphones to record audio over the I2S interface, and then send it over Bluetooth. What is the best library to use for this? I&#39;ve found &quot;nrf_drv_pdm.h&quot; in integration/nrfx/legacy, but the .c file is noten-USTelligent Community 13Thu, 05 Dec 2019 14:44:10 GMTRE: PDM library - using with nRF52840https://devzone.nordicsemi.com/thread/223971?ContentTypeID=1Thu, 05 Dec 2019 14:44:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:aa07904b-a50f-4384-ab4c-48c879e4cc1eKenneth<p>Check out:&nbsp;\nRF5_SDK_15.3.0_59ac345\modules\nrfx&nbsp;</p> <p><a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__nrf__pdm.html">https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__nrf__pdm.html</a>&nbsp;</p><div style="clear:both;"></div>RE: PDM library - using with nRF52840https://devzone.nordicsemi.com/thread/223951?ContentTypeID=1Thu, 05 Dec 2019 14:18:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3f628eab-924f-4c79-b399-3c33b7bca11ecrengineer393<p>Thanks Kenneth. Just looked at SDK15.3, and it is also missing the .c file.</p><div style="clear:both;"></div>RE: PDM library - using with nRF52840https://devzone.nordicsemi.com/thread/223941?ContentTypeID=1Thu, 05 Dec 2019 14:03:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9717b07a-20bc-4734-b447-f7db2eaa57e5Kenneth<p>Seems that the pdm driver is missing from SDKv16, try download SDKv15.3. Though you may also take a look at:<br /><a href="https://infocenter.nordicsemi.com/topic/ug_thingy52/UG/thingy52/intro/frontpage.html?cp=11_1">https://infocenter.nordicsemi.com/topic/ug_thingy52/UG/thingy52/intro/frontpage.html?cp=11_1</a>&nbsp;</p> <p>Kenneth</p><div style="clear:both;"></div>