어?!?! 아두이노 sprintf() %f가 안돼?

엥? winavr에서도 안되었던가??

급 멘붕 ㄷㄷ

char *dtostrf(double val, signed char width, unsigned char prec, char *s) Use this method to convert it to a C-Style string and then use sprintf, eg: char str_temp[6]; /* 4 is mininum width, 2 is precision; float value is copied onto str_temp*/ dtostrf(temp, 4, 2, str_temp); sprintf(temperature,"%s F", str_temp);

[링크 : http://stackoverflow.com/questions/27651012/arduino-sprintf-float-not-formatting]

[링크 : http://forum.arduino.cc/index.php?topic=175478.0]

[링크 : http://whiteat.com/bPDS_AVR/28406]