https://devzone.nordicsemi.com/f/nordic-q-a/71462/uart-resieve-interrupt-troubleHello. I&#39;m currently developing a software for nRF52832AA device. It needs to communicate with external device via UART. It resieves text message and takes some data from it. I used standart functions from libraries to obtain data from FIFO. So the questionen-USTelligent Community 13Tue, 09 Feb 2021 11:30:49 GMThttps://devzone.nordicsemi.com/thread/293530?ContentTypeID=1Tue, 09 Feb 2021 11:30:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ce68a77b-e47b-4254-94d2-80f9f7691b04Edvin<p>Hello,</p> <p>I suggest you study the SDK\examples\ble_peripheral\ble_app_uart example, and how it uses the uart_event_handle() to receive bytes from the UART using interrupts.</p> <p>Basically, it is the same as your current&nbsp;uart_error_handle(), except that it also has an event for new data,&nbsp;APP_UART_DATA_READY.</p> <p>In your case, it is already set up, but the event handler doesn&#39;t check for this event. The reason it also works to use&nbsp;app_uart_get() as a blocking call is that it returns NRF_ERROR_NOT_FOUND until it actually receives a byte.&nbsp;</p> <p></p> <p>Best regards,</p> <p>Edvin</p><div style="clear:both;"></div>