This function can be optimized further by writing it in proper assembler code. Compared with solution using String object which compiled into 2,398 bytes, this implementation can reduce your code size by 1.2 Kb (assumed that you need no other String's object method, and your number is strict to signed int type). int cmdSeries 3 Serial.println ('Series : ' + cmdSeries) // That's where the problem occur. This sketch is compiled to 1,082 bytes of code using avr-gcc which bundled with Arduino v1.0.5 (size of int2str function itself is 594 bytes). I am trying to print an integer alongside a string but it's not really working out and am getting confused. To assist compiler, we add register modifier into variable declaration to speed-up execution. Floats are similarly printed as ASCII digits, defaulting to two decimal places. Numbers are printed using an ASCII character for each digit. Since it's only 7 bytes, the cost of fixed RAM usage is considered minimum. Prints data to the serial port as human-readable ASCII text. You can open the monitor only when an Arduino is connected to the PC via a USB cable. You can open the Arduino Serial Monitor easily in the following way. Simple and safe: int answer 42 Serial.print ('The answer is ') Serial. Thus the fastest solution is using conditional branches to build the string.Ī fixed 7 bytes buffer prepared from beginning in RAM to avoid dynamic allocation. Arduino Serial Monitor is a terminal window to print the data using print commands. However, it is always better to avoid using String objects if at all possible, because they use dynamic memory allocation, which carries some risk of memory fragmentation. This implementation avoids using division since 8-bit AVR used for Arduino has no hardware DIV instruction, the compiler translate division into time-consuming repetitive subtractions. This is speed-optimized solution for converting int (signed 16-bit integer) into string.
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