https://devzone.nordicsemi.com/f/nordic-q-a/29749/nrf52---saadc-no-output-in-serial-terminalHello, In the blinky project, I have added the following peripherals to build up an application Timer UART SAADC PPI I have followed the saadc peripheral example to build up the blinky project. No compile errors. No linker errorsen-USTelligent Community 13Thu, 25 Jan 2018 11:32:54 GMThttps://devzone.nordicsemi.com/thread/117985?ContentTypeID=1Thu, 25 Jan 2018 11:32:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:81e6b107-e413-4624-9809-ca85ad6d7787J&#248;rgen Holmefjord<p>Hi,</p> <p>All the printing commands in your application is done using <code>NRF_LOG_INFO()</code>, but you have not enabled NRF_LOG in your sdk_config.h file. I see you have implemented UART, and included retarget.c in your project, but you do not use <code>printf</code> for printing any strings. You either have to enable NRF_LOG in sdk_config.h and select the UART backend (see sdk_config.h file of for instance SAADC example), or swap the <code>NRF_LOG_INFO()</code> calls for <code>printf</code>. In this case, you also need to enable retargeting of the STDIO functions in sdk_config.h:</p> <pre><code>// &lt;q&gt; RETARGET_ENABLED - retarget - Retargeting stdio functions #ifndef RETARGET_ENABLED #define RETARGET_ENABLED 1 #endif </code></pre> <p>Best regards,</p> <p>Jørgen</p><div style="clear:both;"></div>