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abarth500/attachInterrupt.cpp

Last active July 9, 2019 01:51
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attachInterrupt.cpp
const int ledPin = 7;
const int speakerPin = 9;
void setup() {
pinMode(2, INPUT_PULLUP);
pinMode(7, OUTPUT);
pinMode(9, OUTPUT);
attachInterrupt(0, speaker, FALLING);
}
void loop() {
digitalWrite(ledPin, HIGH);
delay(500);
digitalWrite(ledPin, LOW);
delay(500);
}
void speaker() {
tone(speakerPin, 255, 1000);
}
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