https://devzone.nordicsemi.com/f/nordic-q-a/11668/printf-prints-blanks-instead-of-floatsSame question as devzone.nordicsemi.com/.../ What needs to change for a gcc setup in the compile flags. If that helps, some of the flags I have now include: -mfloat-abi=hard -mfpu=fpv4-sp-d16en-USTelligent Community 13Tue, 02 Feb 2016 01:19:09 GMThttps://devzone.nordicsemi.com/thread/44108?ContentTypeID=1Tue, 02 Feb 2016 01:19:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:39757d7c-3efb-4e37-9054-a6e11f0f98d8matthieu<p>Found the answer there: <a href="https://devzone.nordicsemi.com/question/5076/using-floats-with-sprintf-gcc-arm-none-eabi-nrf51822/">devzone.nordicsemi.com/.../</a></p> <p>Basically add</p> <pre><code>LDFLAGS += -u _printf_float </code></pre><div style="clear:both;"></div>