https://devzone.nordicsemi.com/f/nordic-q-a/60129/adding-ftdi-chip-to-nrf52840Hi, We are designing our custom board with NRF52840 , we need to add serial capabilities over USB. We were thinking about adding FTDI Chip ( FT232H ) connected to the USB I/F of NRF. Will I be able to use CDC ACM driver in this case for communicationen-USTelligent Community 13Mon, 13 Apr 2020 18:57:21 GMThttps://devzone.nordicsemi.com/thread/244299?ContentTypeID=1Mon, 13 Apr 2020 18:57:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:acf4f090-230e-4445-bc30-ea9b3695c82fran<p>Thanks - You are correct. would not work&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/244297?ContentTypeID=1Mon, 13 Apr 2020 18:05:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f58c9768-d09a-4870-88e0-526960dd5394mtsunstrum<p>You should not need to do that.</p> <p>Using nRF52840 existing USB interface and embed the CDC ACM driver functionality should get you there.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/244289?ContentTypeID=1Mon, 13 Apr 2020 16:41:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0ece016b-beea-4393-a880-ea6493edb064Patrick<p>Would it not make more sense to just use one of the built in UART peripherals available in the nrf52840? The nrf52840 doesn&#39;t support USB Host mode so I&#39;m not sure adding a FT232H in the way you mentioned will even work.</p><div style="clear:both;"></div>