https://devzone.nordicsemi.com/f/nordic-q-a/83281/uart-crush-when-setting-wifi-moduleHi, all. I&#39;m using nRF52833 and trying to communicate ESP8266 using UART. I already successfully communicate with Dust Sensor with baudrate 9600, so I tried to communicate with WIFI module by changing the setting to 115200. But when I run programen-USTelligent Community 13Tue, 04 Jan 2022 01:06:21 GMThttps://devzone.nordicsemi.com/thread/345776?ContentTypeID=1Tue, 04 Jan 2022 01:06:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f7b8a27d-c43f-49a4-9d50-33d62439ce4blyrics<p>I fixed the issue.. It was because of PIN setting error.&nbsp;<br />I reffered to<a href="https://devzone.nordicsemi.com/f/nordic-q-a/29183/ble_app_uart-crashes-with-error-4-nrf_error_no_mem"> this post</a>.</p><div style="clear:both;"></div>