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Topic: sprintf does not work with float (Read 154 times) previous topic - next topic


sprintf does not work with float

This seems to be a long standing problem with Arduino "C"

Numerous functions to act as a substitute can be found via a google search for this, however none of them seems to work either correctly or at all.

Does anyone know of a functional (preferably clean) solution?

If you have used something that works, an example would also be helpful.


Add this above setup

Code: [Select]

asm(".global _printf_float");
asm(".global _scanf_float");

It will force the compiler to link floating point support for printf and scanf.

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