https://devzone.nordicsemi.com/f/nordic-q-a/87213/sscanf-string-intHello, I am trying to use sscanf() to format an input string into an integer, followed by a string, followed by an integer. For example: int main() { #define FORMAT_STR &quot;RESPONSE: %u , %[^,] , %u &quot; char *p_input_str = &quot;RESPONSE: 27, \&quot; open \&quot; en-USTelligent Community 13Fri, 22 Apr 2022 14:58:50 GMThttps://devzone.nordicsemi.com/thread/364519?ContentTypeID=1Fri, 22 Apr 2022 14:58:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e900356d-5deb-4531-9c54-f04bd414206fSpacemanSpiff<p>Sure enough, that did it.&nbsp; I am using the nRF5 SDK, and in case it helps anyone else, I was able to fix this by enabling &quot;Scanf Classes Supported&quot; in Project Options -&gt; Code -&gt; Printf/Scanf.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/364516?ContentTypeID=1Fri, 22 Apr 2022 14:47:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bae315ef-e69f-436e-bfde-2c15e65893aaDidrik Rokhaug<p>Hi,</p> <p>Are you using the nRF5 SDK or the nRF Connect SDK?</p> <p>When using the nRF Connect SDK, your code worked as expected when I enabled CONFIG_NEWLIB_LIBC.</p> <p>I have not tested your code with the nRF5 SDK, but it looks like the circumflex is supported there as well: <a href="https://studio.segger.com/index.htm?https://studio.segger.com/scanf.htm">https://studio.segger.com/index.htm?https://studio.segger.com/scanf.htm</a></p> <p>Best regards,</p> <p>Didrik</p><div style="clear:both;"></div>