Limitation in displaying on LCD

How can limit some value of type float to be printed on LCD only 1 character after the comma?

 float temperatureC = (voltage - 0.5) * 100 ;
lcd.print(temperatureC); // Here I want to be displayed only 1 character after the comm XX,X

The LiquidCrystal class is derived from the core Print class. See Footnote.

As of arduino-0018, a Print function call for a float argument can take the form of

objectname.print(float_value, n);

Where n is the number of decimal digits to be printed after the decimal point.

If you want to print with a comma instead of a decimal point, you can modify arduino-0018/hardware/arduino/cores/arduino/Print.cpp to make it so.

Regards,

Dave

Footnote: If you are using something other than the LiquidCrystal class supplied with version 0018 of Arduino, and this does not work, you should tell us what class you are using.