const int sensor = A0; // analog input use variable resistance void setup () { Serial.begin (9600); } void loop () { if(analogRead(sensor)==1023)//when variable resistance give value =1023 print 'x' { Serial.print("x"); Serial.println(); } delay (1000); } // my proplem : when i stay in…

stay in the same value of analog input give output one time

Arrch December 18, 2012, 8:03pm 4

MostafaHamdy:
please , can you give me an example on signal edge detection or any link explain it

Look at the StateChangeDetection example.

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