https://devzone.nordicsemi.com/f/nordic-q-a/70011/printf-over-uart-fails-to-print-floatsHi, I&#39;m trying to print a float over UART but I think the NRF implementation is faulty. I&#39;ve tested not UART SDK example with the following changes, inserted at line 168: UART output: As you can see there is clearly no printed float output.en-USTelligent Community 13Thu, 31 Dec 2020 16:36:57 GMThttps://devzone.nordicsemi.com/thread/287062?ContentTypeID=1Thu, 31 Dec 2020 16:36:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:33d596b0-3674-4dba-a68a-ba649e1f3ce9Nguyen Hoan Hoang<p>by default GCC does not enable float printf. &nbsp;To enable it, add linker flag <span style="font-family:&#39;comic sans ms&#39;, &#39;comic sans&#39;, sans-serif;">-u _printf_float</span></p><div style="clear:both;"></div>