Web Reference: Don't leave your Serial.print statements in your final code! And use printf! Dec 2, 2024 · There is no blackbox; it's just a macro. debug (x) is replaced by Serial.print (x) by the C++ preprocessor if DEBUG equals 1 and else by nothing. A way to save program memory by turning on/off debug at will, of course on a small program it doesn't really matter. Just good to know. Apr 5, 2015 · Is it possible to have the Arduino ignore serial.print and serial.println throughout my code, without turning it into a comment or placing every serial printing inside for example "if (debug == true)" statements?
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