How to print floats with NRF_LOG macros

RE: How to print floats with NRF_LOG macros

awneil — Fri, 26 Jul 2019 13:56:50 GMT

Note that you are replying to a two year old thread - presumably, it has been fixed in the meantime?

Which SDK version(s) are you referring to?

A similar bug exists (existed?) in the Thingy code:

GT — Fri, 26 Jul 2019 12:11:47 GMT

The macros shows correct values even between -1.0<value<0.0

Turbo J — Wed, 02 Aug 2017 21:08:51 GMT

There are special macros available for float values:

NRF_LOG_ERROR( "Float " NRF_LOG_FLOAT_MARKER "\r\n", NRF_LOG_FLOAT(value));

Note: These macros wrongly show values -1.0<value<0.0 as positive.

Printing a char* string variable with "%s" also fails to compile.

Try using nrf_log_push(). The -Werror gcc option may be incompatible with NRF_LOG_ functions.