On Paper: Converting a Number to a String for Display on LCD

To be able to send a number as a string to the LCD that comes from a variable, a function must be used to convert the number to a string. Two functions are available for this: itoa and dtostrf. Itoa is for integer conversion to string. Dtostrf is for converting double precision numbers to string. The functions syntax: itoa(value, character array, base); dtostrf(value, width, precision, character array); - value is the variable that contains the number - character array is the output string - base - binary - 2, decimal - 10, hexadecimal - 16 - width - the length of the final string including the sign. (i.e. -123.45 would be 7) - Precision if the number of digits after the decimal.