I would have thought rounding or truncating a number like 71.4323523 to 71.4 would be easy but I've failed to find a short solution. Is float to string (dtostrf() ) is the only way I can think of. I'm sending the value to an OLED so my understanding sprintf is not applicable. Is there another s…

if your unknown OLED Library for your unknown OLED in your unknown Code is based on print, you can do a simple oled.print(unknownFloat, 1); to get a rounded float printed to the display with one decimal.

"Round" float to one decimal place for printing to OLED

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gcjr September 26, 2021, 10:19am 10

i have no problem passing a c-string to the OLED devices i've used. doesn't matter what is used to construct/format the string.

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"Round" float to one decimal place for printing to OLED

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