HI all! I'm testing a simplest app in Web Edtior with my Arduino Leonardo (actually MakeyMakey): int tick = 1; String m = "tick "; void setup() { } void loop() { Serial.println(m + tick); tick = -tick; delay(1000); } And surprisingly, the output in Monitor panel is: tick -1 tick -1 …

Serial.println() duplicated in web editor?

smellai May 30, 2018, 7:26am 3

I tried your sketch with a Leonardo and the output is correct

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